Re: power management
On Tuesday 16 December 2008 00:23:17 prad wrote: > On Mon, 15 Dec 2008 23:20:51 +0100 (CET) > > Wojciech Puchar wrote: > > IMHO it depends on hardware > > ya that makes sense at least from reading about different cpu state > descriptions here: > Everything You Need to Know About the CPU C-States Power Saving Modes > http://www.hardwaresecrets.com/article/611 > > where they talk about how different cpu's deal with things differently. > so since the os software can only use these features, possibly some > have optimized for some hardware, but possibly not for others. If you're interested in technical details, there's a November thread on -mobile that covers quite some ground: http://lists.freebsd.org/pipermail/freebsd-mobile/2008-November/011188.html -- Mel Problem with today's modular software: they start with the modules and never get to the software part. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
Re: power management
Simply - install linux, then FreeBSD on same machine and check it :) :D ya that's what's important here at least. anyway - just using hlt instruction greatly reduces CPU power usage even at full clock. i don't think the difference is THAT huge by reducing clock multipliers, voltage etc. on my laptop i don't even looked at this, and it works about 2 times longer under little CPU load than under full load. and it has hard drive and display that use power. CPU itself isn't big power eater (it's pentium-M 1200). Of course on "modern" CPUs having >>100W TDP it may make a difference. not that i'm concerned, i'm not going back to linux (even though i liked it while i used it). me too - until kernels 2.0.*, then it wasn't usable (stable) anymore. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
Re: power management
On Mon, 15 Dec 2008 23:20:51 +0100 (CET) Wojciech Puchar wrote: > IMHO it depends on hardware > ya that makes sense at least from reading about different cpu state descriptions here: Everything You Need to Know About the CPU C-States Power Saving Modes http://www.hardwaresecrets.com/article/611 where they talk about how different cpu's deal with things differently. so since the os software can only use these features, possibly some have optimized for some hardware, but possibly not for others. > Simply - install linux, then FreeBSD on same machine and check it :) > :D ya that's what's important here at least. not that i'm concerned, i'm not going back to linux (even though i liked it while i used it). -- In friendship, prad ... with you on your journey Towards Freedom http://www.towardsfreedom.com (website) Information, Inspiration, Imagination - truly a site for soaring I's ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
Re: power management
my son read somewhere that linux does better power management than freebsd. one specific item being that the cpu scaling is more efficiently handled. my friend told me that freebsd does it better ;) anyway it's just "been told", "somewhere" etc. to compare things we first need to set up a metric :) i don't know much about this stuff so i thought i'd ask here. 1. is there any accuracy to the statement? 2. is cpu scaling a kernel issue? if so, does this mean that the linux kernel has coding in it which deals with the scaling better? IMHO it depends on hardware and ACPI. maybe linux handles strange cases better maybe not. Simply - install linux, then FreeBSD on same machine and check it :) ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
power management
my son read somewhere that linux does better power management than freebsd. one specific item being that the cpu scaling is more efficiently handled. i don't know much about this stuff so i thought i'd ask here. 1. is there any accuracy to the statement? 2. is cpu scaling a kernel issue? if so, does this mean that the linux kernel has coding in it which deals with the scaling better? 3. are we comparing simple default kernels? can the fbsd kernel be recompiled appropriately to match or exceed the linux one? -- In friendship, prad ... with you on your journey Towards Freedom http://www.towardsfreedom.com (website) Information, Inspiration, Imagination - truly a site for soaring I's ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
Re: problems with hald, keyring manager and power management
On Wed, 14 May 2008 22:36:49 +0200 Marco Beishuizen <[EMAIL PROTECTED]> wrote: > Hi, > > My hald is crashing constantly. It's started when booting by rc.conf > and then it crashes immediately with no further error messages. It > crashes also when I start it manually. The problem is quite severe > because it even caused two kernel panics. > > I'm running 7.0-Stable and the hal version is 0.5.11rc2. In the Gnome control center the "keyring manager" is also crashing and the "power management" isn't starting up (but doesn't seem to crash). I'm not sure if this is related with the hald issue but it all happened at the same time. -- Halley's Comet: It came, we saw, we drank. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: 6.2-stable power management
On Monday 09 July 2007 12:43:45 J.D. Bronson wrote: > Is there any way to verify ALL power management is disabled? > I have totally disabled it in my BIOS and I have > totally disabled it in the hard drives... > > Yet I keep hearing a drive spin down and then immediately back up > over and over (at times). > > If I install a different OS on this same machine, this does not > happen..so I am thinking something within 6.2-stable is doing this? > > any thoughts or ideas? BTW are you running chat clients or mail clients on this computer? Perhaps something like that is causing this activity, such as when a mail client or notifier checks a remote server for mail. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: 6.2-stable power management
On Monday 09 July 2007 12:43:45 J.D. Bronson wrote: > Is there any way to verify ALL power management is disabled? > I have totally disabled it in my BIOS and I have > totally disabled it in the hard drives... > > Yet I keep hearing a drive spin down and then immediately back up > over and over (at times). > > If I install a different OS on this same machine, this does not > happen..so I am thinking something within 6.2-stable is doing this? > > any thoughts or ideas? I am not having this problem with FreeBSD 6.2, which I recently installed on a laptop in place of kubuntu and I DID have this problem with the same laptop when it was running kubuntu. I did not change any BIOS settings. The laptop would wake me up with all the noise. With FreeBSD 6.2 the laptop stays quiet if I leave it on overnight. FreeBSD 6.2-RELEASE-p4 (GENERIC) #0: Thu Apr 26 17:40:53 UTC 2007 ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
6.2-stable power management
Is there any way to verify ALL power management is disabled? I have totally disabled it in my BIOS and I have totally disabled it in the hard drives... Yet I keep hearing a drive spin down and then immediately back up over and over (at times). If I install a different OS on this same machine, this does not happen..so I am thinking something within 6.2-stable is doing this? any thoughts or ideas? -JD ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: VT8235 Power Management Controller driver?
On 1/14/06, Ivailo Bonev <[EMAIL PROTECTED]> wrote: > Is FreeBSD 6-STABLE have "VT8235 Power Management Controller" driver? What to > insert in kernel to compile it? Or maybe have another way to switch it on? > > device iicbb device iicbus device iicsmb device smbus device smb device viapm Go sign the native flash for FreeBSD petition: http://www.petitiononline.com/flash4me/petition.html ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
VT8235 Power Management Controller driver?
Is FreeBSD 6-STABLE have "VT8235 Power Management Controller" driver? What to insert in kernel to compile it? Or maybe have another way to switch it on? - Yahoo! Messenger NEW - crystal clear PC to PC calling worldwide with voicemail ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: nForce3 SMB and Power Management
João Carlos Mendes Luís <[EMAIL PROTECTED]> writes: > João Carlos Mendes Luís wrote: > > Indeed, my kernel could find ichsmb. But mbmom still does not work. Are you > sure you have no other smb device in your board? I don't see anything else in "scanpci" or "pciconf" or "/var/run/dmesg" which has this only related line ichsmb0: port 0x2000-0x203f,0x1c00-0x1c3f,0xe800-0xe81f irq 23 at device 1.1 on pci0 ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: nForce3 SMB and Power Management
João Carlos Mendes Luís wrote: > > Gary W. Swearingen wrote: > >>João Carlos Mendes Luis <[EMAIL PROTECTED]> writes: >> >> >> >>>gaia::root ~ [647] mbmon -I >>>No ISA-IO HWM available!! >>>InitMBInfo: Unknown error: 0 >>>gaia::root ~ [648] >> >> >>I don't get that with -I (just with -S). It pretends to work OK; just bad >>data, >>which might be related to the bogus temp. seen in BIOS setup screen. >> >> >> >>>[EMAIL PROTECTED]:1:1: class=0x0c0500 card=0x813f1043 chip=0x00e410de >>>rev=0xa1 hdr=0x00 >>>vendor = 'NVIDIA Corporation' >>>device = 'nForce PCI SMB Controller' >>>class= serial bus >>>subclass = SMBus >> >> >>I get: >> >>[EMAIL PROTECTED]:1:1: class=0x0c0500 card=0x0c111458 chip=0x00e410de >>rev=0xa1 hdr=0x00 >>vendor = 'NVIDIA Corporation' >>device = 'nForce PCI System Management' >>class= serial bus >>subclass = SMBus > > > What's your FreeBSD version? At 5-stable, ichsmb attachs only to Intel > devices, > that means that only chips numered 0x8086 are accepted: > > /* PCI unique identifiers */ > #define ID_82801AA 0x24138086 > #define ID_82801AB 0x24238086 > #define ID_82801BA 0x24438086 > #define ID_82801CA 0x24838086 > #define ID_82801DC 0x24C38086 > #define ID_82801EB 0x24D38086 > #define ID_6300ESB 0x25a48086 > > I'll give it a try, anyway. Maybe compiling a kernel with ALL smb devices. Indeed, my kernel could find ichsmb. But mbmom still does not work. Are you sure you have no other smb device in your board? pciconf: [EMAIL PROTECTED]:1:1: class=0x0c0500 card=0x813f1043 chip=0x00e410de rev=0xa1 hdr=0x00 vendor = 'NVIDIA Corporation' device = 'nForce PCI SMB Controller' class= serial bus subclass = SMBus dmesg: gaia::root ichsmb [518] grep -i smb /var/run/dmesg.boot netsmb_dev: loaded ichsmb0: port 0x5040-0x507f,0x5000-0x503f,0x5080-0x509f at device 1.1 on pci0 gaia::root ichsmb [519] Note that the kernel found ichsmb, but found no smbus. Looking a bit deeper into the sources, ichsmb does attach to *ANY* PCI device which identifies itself as a class "serial bus" and subclass "SMBus". It is a mistake, and probably a bug. Maybe a leftover from debugging phase. I am CCing: the ichsmb author to remember him. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: nForce3 SMB and Power Management
João Carlos Mendes Luís <[EMAIL PROTECTED]> writes: > What's your FreeBSD version? At 5-stable, ichsmb attachs only to Intel > devices, > that means that only chips numered 0x8086 are accepted: FreeBSD 5.4-RELEASE i386 arch OS on Athlon64 CPU. I don't know about my chips. There are some other numbers than the ones you mentioned in the ichsmb manpage. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: nForce3 SMB and Power Management
Gary W. Swearingen wrote: > João Carlos Mendes Luis <[EMAIL PROTECTED]> writes: > > >>gaia::root ~ [647] mbmon -I >>No ISA-IO HWM available!! >>InitMBInfo: Unknown error: 0 >>gaia::root ~ [648] > > > I don't get that with -I (just with -S). It pretends to work OK; just bad > data, > which might be related to the bogus temp. seen in BIOS setup screen. > > >>[EMAIL PROTECTED]:1:1: class=0x0c0500 card=0x813f1043 chip=0x00e410de >>rev=0xa1 hdr=0x00 >> vendor = 'NVIDIA Corporation' >> device = 'nForce PCI SMB Controller' >> class= serial bus >> subclass = SMBus > > > I get: > > [EMAIL PROTECTED]:1:1: class=0x0c0500 card=0x0c111458 chip=0x00e410de > rev=0xa1 hdr=0x00 > vendor = 'NVIDIA Corporation' > device = 'nForce PCI System Management' > class= serial bus > subclass = SMBus What's your FreeBSD version? At 5-stable, ichsmb attachs only to Intel devices, that means that only chips numered 0x8086 are accepted: /* PCI unique identifiers */ #define ID_82801AA 0x24138086 #define ID_82801AB 0x24238086 #define ID_82801BA 0x24438086 #define ID_82801CA 0x24838086 #define ID_82801DC 0x24C38086 #define ID_82801EB 0x24D38086 #define ID_6300ESB 0x25a48086 I'll give it a try, anyway. Maybe compiling a kernel with ALL smb devices. > It looks like I got at least one correct driver (ichsmb) in the kernel > and that you didn't. I don't know what to make of the different "device" > strings, or whether that's from the kernel or the MB. > > I see a couple more SMB things in /sys/conf/NOTES that don't sound > necessary, but I'll probably try; namely, > > options NETSMB #SMB/CIFS requester > options LIBMCHAIN > options LIBICONV > options SMBFS #SMB/CIFS filesystem These are for the SMB/CIFS filesystem, which is the network filesystem used by MS Windows networks. These are not related to power control. > > Here's what I've got now: > > device smbus > device smb # requires smbus > #options ENABLE_ALART # Control alarm on Intel intpm driver [machine=i386]; > Not a typo! > device iicbus > device iicbb # requires iicbus > > device ichsmb > device ic > device iic > device alpm > device amdpm > deviceintpm # requires smb > device viapm > device pcf ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: nForce3 SMB and Power Management
João Carlos Mendes Luis <[EMAIL PROTECTED]> writes: > gaia::root ~ [647] mbmon -I > No ISA-IO HWM available!! > InitMBInfo: Unknown error: 0 > gaia::root ~ [648] I don't get that with -I (just with -S). It pretends to work OK; just bad data, which might be related to the bogus temp. seen in BIOS setup screen. > [EMAIL PROTECTED]:1:1: class=0x0c0500 card=0x813f1043 chip=0x00e410de > rev=0xa1 hdr=0x00 > vendor = 'NVIDIA Corporation' > device = 'nForce PCI SMB Controller' > class= serial bus > subclass = SMBus I get: [EMAIL PROTECTED]:1:1: class=0x0c0500 card=0x0c111458 chip=0x00e410de rev=0xa1 hdr=0x00 vendor = 'NVIDIA Corporation' device = 'nForce PCI System Management' class= serial bus subclass = SMBus It looks like I got at least one correct driver (ichsmb) in the kernel and that you didn't. I don't know what to make of the different "device" strings, or whether that's from the kernel or the MB. I see a couple more SMB things in /sys/conf/NOTES that don't sound necessary, but I'll probably try; namely, options NETSMB #SMB/CIFS requester options LIBMCHAIN options LIBICONV options SMBFS #SMB/CIFS filesystem Here's what I've got now: device smbus device smb # requires smbus #options ENABLE_ALART # Control alarm on Intel intpm driver [machine=i386]; Not a typo! device iicbus device iicbb # requires iicbus device ichsmb device ic device iic device alpm device amdpm device intpm # requires smb device viapm device pcf ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: nForce3 SMB and Power Management
Gary W. Swearingen wrote: João Carlos Mendes Luis <[EMAIL PROTECTED]> writes: Hi, Does FreeBSD 5-stable support nForce3 power management? I mean, can I measure fan speeds, power voltage, etc? I did try using nfpm, but it did not work. Well, I can measure those things (nForce 3 250 Gb on Gigabyte GA-K8NSC-939), but some of the voltages vary way too much to believe and my CPU temperature is seemingly random numbers. (My CPU temp is often way low or way high in BIOS, but often reasonable and not varying.) One fan speed looks right, while other fan readings can show a value when there is no other fan. I've tried lmmon, mbmon, healthd, and maybe one other I forget and they only detect the ISA interface and though I've put a dozen related devices in the KERNCONF, I've never seen a /dev/smb* device show up. Maybe you MoBo has some other Power Manager other than nForce3. I did try mbmon, and even in ISA mode it cannot find any device: gaia::root ~ [647] mbmon -I No ISA-IO HWM available!! InitMBInfo: Unknown error: 0 gaia::root ~ [648] From pciconf: [EMAIL PROTECTED]:1:1: class=0x0c0500 card=0x813f1043 chip=0x00e410de rev=0xa1 hdr=0x00 vendor = 'NVIDIA Corporation' device = 'nForce PCI SMB Controller' class= serial bus subclass = SMBus I've pretty-much forgotten what little I found in Google or groups.google, but I suspect that some Nforce3 motherboards work and others don't. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: nForce3 SMB and Power Management
João Carlos Mendes Luis <[EMAIL PROTECTED]> writes: > Hi, > > Does FreeBSD 5-stable support nForce3 power management? I mean, can I > measure fan speeds, power voltage, etc? I > did try using nfpm, but it did not work. Well, I can measure those things (nForce 3 250 Gb on Gigabyte GA-K8NSC-939), but some of the voltages vary way too much to believe and my CPU temperature is seemingly random numbers. (My CPU temp is often way low or way high in BIOS, but often reasonable and not varying.) One fan speed looks right, while other fan readings can show a value when there is no other fan. I've tried lmmon, mbmon, healthd, and maybe one other I forget and they only detect the ISA interface and though I've put a dozen related devices in the KERNCONF, I've never seen a /dev/smb* device show up. I've pretty-much forgotten what little I found in Google or groups.google, but I suspect that some Nforce3 motherboards work and others don't. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
nForce3 SMB and Power Management
Hi, Does FreeBSD 5-stable support nForce3 power management? I mean, can I measure fan speeds, power voltage, etc? I did try using nfpm, but it did not work. TIA, Jonny ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: SATA HD power management disabling
O. Hartmann wrote: Hello. Using atacontrol cap shows me on both devices power management yes yes advanced power management yes no automatic acoustic management yes yes You can try the Feature Tool here: http://www.hitachigst.com/hdd/support/download.htm You need to create a bootable floppy. It's the only way I've found to control AAM (which I want ON, but if you like grinding seek chatter, who am I to argue :-)). It does APM as well. If you find any other ways, I'd love to know. --Alex ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
SATA HD power management disabling
Hello. On one of my workstaions (AMD64, FBSD 5.4-STABLE) I utilize two SATA drives, one is a 200GB Maxtor (2B200MO, SATA I), the other a Samsung 200GB (SP2004C, SATA II). Using atacontrol cap shows me on both devices power management yes yes advanced power management yes no automatic acoustic management yes yes Is there a way to disable automatic acoustic management and power management forever? Mainboard is a ASUS A8N-SLI Deluxe, BIOS 1010 (most recent), Operation System FreeBSD 5.4-STABLE as most recent cvsupdated (I think this doesn't matter, but ...). I did not find any knob in the BIOS disbaling acoustic and power management for the attached harddrives, so I'm a little bit confused. Especially the Samsung drives seems to need about 1 or 2 seconds 'starting' when accessed after a while of inactivity, means when showing a directory content, it takes a while before the informations show up. Thanks, Oliver ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: FreeBSD and AMD power management
Am Thursday 09 January 2003 23:14 schrieb Brian Astill: > Mark wrote: > >- Original Message - > > From: "Matthew Seaman" <[EMAIL PROTECTED]> > > >To: <[EMAIL PROTECTED]> > >Sent: Thursday, January 09, 2003 9:54 AM > >Subject: Re: FreeBSD and AMD power management > > > >>Try the ports/sysutils/fvcool port --- > >>http://www.nt.phys.kyushu-u.ac.jp/shimizu/ > >> > >>Using it has cut the average CPU temperature on my system from > >>about 70C to about 50C. > > > >It looked interesting; so I checked it out. Then it turns out this > >power-safe mode on your AMD CPU is disabled by default for a good reason: > > it makes your system unstable, and/or causes it to hang. Then cool is > > suddenly not so cool anymore. :( > > You have somewhat misread the docs. > To "prove" this, nobody using fvcool has reported instability on this or > any other list. All HAVE reported a drop in CPU temperature of around > 20C. In my case that means dropping from 55C to 35C. -- I'm sorry to be the first !! My system locks in about 2s. after starting Fvcool. It's a Athlon TB 1.4c on an Msi K7T266pro-R ! Any one any idea! For exanple the Pciconf.values? To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
Re: FreeBSD and AMD power management
- Original Message - From: "Jud" <[EMAIL PROTECTED]> To: "Matthew Seaman" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Thursday, January 09, 2003 10:34 PM Subject: Re: FreeBSD and AMD power management > YMMV, but I have fvcool running while building world, compiling > ports, etc., and have never had the slightest difficulty. I did some research as to why fvcool would make your computer unstable. And, it turns out, it is not so much the CPU itself which may cause instability, but the power supply. :( The idea is, that when your power supply heavily fluctuates between, say, 70W (normal operations), and 5W (power-safe mode), the power supply may experience trouble keeping the voltages stable. Plus, rapidly fluctuating the power draw, to the effect that fvcool would cause, or rather: that power-safe mode would cause, it is argued that the lifespan of your power supply may shorten drastically. And then there is the issue of the UPS. Dunno about others, but my UPS (APC 350), according to its specifications, does not allow equipment that draws power on a gliding scale (like lamps with dimmer switches). All-in-all, and I say this with regret, I have therefore decided not to use fvcool, after all. :( - Mark To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
Re: FreeBSD and AMD power management
Mark wrote: - Original Message - From: "Matthew Seaman" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, January 09, 2003 9:54 AM Subject: Re: FreeBSD and AMD power management Try the ports/sysutils/fvcool port --- http://www.nt.phys.kyushu-u.ac.jp/shimizu/ Using it has cut the average CPU temperature on my system from about 70C to about 50C. It looked interesting; so I checked it out. Then it turns out this power-safe mode on your AMD CPU is disabled by default for a good reason: it makes your system unstable, and/or causes it to hang. Then cool is suddenly not so cool anymore. :( You have somewhat misread the docs. To "prove" this, nobody using fvcool has reported instability on this or any other list. All HAVE reported a drop in CPU temperature of around 20C. In my case that means dropping from 55C to 35C. -- Brian To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
Re: FreeBSD and AMD power management
On Thu, Jan 09, 2003 at 11:07:36PM +0100, Mark wrote: > I am having the A7V333 board myself, so I am fairly excited. :) The > instability warnings came from the author himself, btw. > > I took the gamble, with much trepidation (I hate to ruin my filesystem), > and, so far, my system is still running (AMD XP-2000). Temperature dropped > down about 18 degrees C. If this is going to work, for real, then Matthew > deserves a big cheer. :) > > One thing is not entirely clear, though; is this something I need to enable > every time I reboot? Or is it tweaked to remain fixed in the BIOS? Yes, you need to run fvcool on reboot. Slap the attached script into /usr/local/etc/rc.d and add: fvcool_enable="YES" to /etc/rc.conf Cheers, Matthew -- Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks Savill Way PGP: http://www.infracaninophile.co.uk/pgpkey Marlow Tel: +44 1628 476614 Bucks., SL7 1TH UK fvcool.sh Description: Bourne shell script
Re: FreeBSD and AMD power management
- Original Message - From: "Brian Astill" <[EMAIL PROTECTED]> To: "Mark" <[EMAIL PROTECTED]> Cc: "Matthew Seaman" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Thursday, January 09, 2003 11:14 PM Subject: Re: FreeBSD and AMD power management > You have somewhat misread the docs. It would seem so. Never before, though, stood I more happily corrected. :) > To "prove" this, nobody using fvcool has reported instability on this > or any other list. All HAVE reported a drop in CPU temperature of > around 20C. In my case that means dropping from 55C to 35C. Does this mean I can use it on my actual server? Call me a wimp, but I am kinda squirmish when it comes to utilities like this. And if it affects the performance of a sound-card, would it also adversely affect the throughput of a network card? I am eager to use this. Could save me a bundle on my electric bill too, btw. :) So, does anyone have this running on a server? I would love to hear their experiences. Thanks. - Mark To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
Re: FreeBSD and AMD power management
- Original Message - From: "Jud" <[EMAIL PROTECTED]> To: "Matthew Seaman" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Thursday, January 09, 2003 10:34 PM Subject: Re: FreeBSD and AMD power management > YMMV, but I have fvcool running while building world, compiling > ports, etc., and have never had the slightest difficulty. > (However, Matthew's exactly right about there being little or no cooling > effect when CPU utilization is running 97%.) The Windows equivalent > of fvcool, VCool, is installed on my W2K partition. The only problem > I've noticed there is that it screws up the sound from my Creative SB16 > PCI sound card, though not the onboard sound (Asus A7V333 board - > I'm not at home and don't recall the precise designation of the onboard > sound chip). No problem with the SB16 on FreeBSD 4-STABLE with > fvcool, however. I am having the A7V333 board myself, so I am fairly excited. :) The instability warnings came from the author himself, btw. I took the gamble, with much trepidation (I hate to ruin my filesystem), and, so far, my system is still running (AMD XP-2000). Temperature dropped down about 18 degrees C. If this is going to work, for real, then Matthew deserves a big cheer. :) One thing is not entirely clear, though; is this something I need to enable every time I reboot? Or is it tweaked to remain fixed in the BIOS? Thanks. - Mark To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
Re: FreeBSD and AMD power management
On Thu, 9 Jan 2003 20:49:20 +, "Matthew Seaman" <[EMAIL PROTECTED]> said: > On Thu, Jan 09, 2003 at 08:15:15PM +0100, Mark wrote: > > - Original Message - > > From: "Matthew Seaman" <[EMAIL PROTECTED]> > > To: <[EMAIL PROTECTED]> > > Sent: Thursday, January 09, 2003 9:54 AM > > Subject: Re: FreeBSD and AMD power management > > > > > > > Try the ports/sysutils/fvcool port --- > > > http://www.nt.phys.kyushu-u.ac.jp/shimizu/ > > > > > > Using it has cut the average CPU temperature on my system from > > > about 70C to about 50C. > > > > It looked interesting; so I checked it out. Then it turns out this > > power-safe mode on your AMD CPU is disabled by default for a good reason: it > > makes your system unstable, and/or causes it to hang. Then cool is suddenly > > not so cool anymore. :( > > I've never experienced any problems like that. I suspect it's > probably one of those things that shows up under load. As my desktop > box spends quite a lot of the time sitting pretty much idle, then > fvcool does it's thing without problems. If it was a hard working > server then I suspect that a) the sort of problems you mention would > probably show up and b) there wouldn't be that much point running > something like fvcool anyhow, as the CPU would be active much of the > time anyhow. YMMV, but I have fvcool running while building world, compiling ports, etc., and have never had the slightest difficulty. (However, Matthew's exactly right about there being little or no cooling effect when CPU utilization is running 97%.) The Windows equivalent of fvcool, VCool, is installed on my W2K partition. The only problem I've noticed there is that it screws up the sound from my Creative SB16 PCI sound card, though not the onboard sound (Asus A7V333 board - I'm not at home and don't recall the precise designation of the onboard sound chip). No problem with the SB16 on FreeBSD 4-STABLE with fvcool, however. Jud To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
Re: FreeBSD and AMD power management
On Thu, Jan 09, 2003 at 08:15:15PM +0100, Mark wrote: > - Original Message - > From: "Matthew Seaman" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Thursday, January 09, 2003 9:54 AM > Subject: Re: FreeBSD and AMD power management > > > > Try the ports/sysutils/fvcool port --- > > http://www.nt.phys.kyushu-u.ac.jp/shimizu/ > > > > Using it has cut the average CPU temperature on my system from > > about 70C to about 50C. > > It looked interesting; so I checked it out. Then it turns out this > power-safe mode on your AMD CPU is disabled by default for a good reason: it > makes your system unstable, and/or causes it to hang. Then cool is suddenly > not so cool anymore. :( I've never experienced any problems like that. I suspect it's probably one of those things that shows up under load. As my desktop box spends quite a lot of the time sitting pretty much idle, then fvcool does it's thing without problems. If it was a hard working server then I suspect that a) the sort of problems you mention would probably show up and b) there wouldn't be that much point running something like fvcool anyhow, as the CPU would be active much of the time anyhow. Cheers, Matthew -- Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks Savill Way PGP: http://www.infracaninophile.co.uk/pgpkey Marlow Tel: +44 1628 476614 Bucks., SL7 1TH UK To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
Re: FreeBSD and AMD power management
- Original Message - From: "Matthew Seaman" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, January 09, 2003 9:54 AM Subject: Re: FreeBSD and AMD power management > Try the ports/sysutils/fvcool port --- > http://www.nt.phys.kyushu-u.ac.jp/shimizu/ > > Using it has cut the average CPU temperature on my system from > about 70C to about 50C. It looked interesting; so I checked it out. Then it turns out this power-safe mode on your AMD CPU is disabled by default for a good reason: it makes your system unstable, and/or causes it to hang. Then cool is suddenly not so cool anymore. :( - Mark To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
Re: FreeBSD and AMD power management
Hello, On 03 01 09, Jud wrote: > On Thu, 9 Jan 2003 13:10:53 +, "Trent Nelson" > <[EMAIL PROTECTED]> said: > > On Thu, Jan 09, 2003 at 06:24:53AM -0500, Jud wrote: > > > in your kernel will help fvcool work even better, but you might try it. I > > > was using CPU_SUSP_HLT in my kernel; adding fvcool drops the average temp > > > of my XP1800+ from 50C to 36C. > > > > What are you using to monitor CPU temperature? > > Xmbmon 2.0 from I managed to combine xmbmon and gkrellm's sensors, if you find that useful, info is on: http://www.kaktusas.org/freebsd/gkrellm/gkrellm.php.lt (in Lithuanian), but you'll get the idea ;) Regards, Paulius To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
Re: FreeBSD and AMD power management
On Thu, 9 Jan 2003 13:10:53 +, "Trent Nelson" <[EMAIL PROTECTED]> said: > On Thu, Jan 09, 2003 at 06:24:53AM -0500, Jud wrote: > > in your kernel will help fvcool work even better, but you might try it. I > > was using CPU_SUSP_HLT in my kernel; adding fvcool drops the average temp > > of my XP1800+ from 50C to 36C. > > What are you using to monitor CPU temperature? Xmbmon 2.0 from http://www.nt.phys.kyushu-u.ac.jp/shimizu/download/download.html Xmbmon versions 1.0x are in ports/sysutils. Jud To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
Re: FreeBSD and AMD power management
On Thu, 9 Jan 2003 08:54:42 +, Matthew Seaman <[EMAIL PROTECTED]> wrote: On Wed, Jan 08, 2003 at 11:29:11PM -0500, J. Seth Henry wrote: I have noticed that my Compaq IA-1's (AMD K6-2/266 & VIA chipset) run substantially hotter under FreeBSD than under Linux. I didn't realize just how much until the machines began spontaneously rebooting under load. [snip] It doesn't appear to be a kernel panic - this machine has a thermal protection circuit which will hold the system in reset if it gets too warm, and so far, nothing has shown up in the logs (beyond the usual startup message regarding / being unmounted improperly). This leads me to believe that FreeBSD isn't issuing halts when it is idle, or the CPU is simply "idle" less. I have noticed that FreeBSD accesses the microdrive a *lot* (though Linux may be as well, but I can't hear it because it's running from flash) Try the ports/sysutils/fvcool port --- http://www.nt.phys.kyushu-u.ac.jp/shimizu/ Using it has cut the average CPU temperature on my system from about 70C to about 50C. I don't know if including options CPU_SUSP_HLT in your kernel will help fvcool work even better, but you might try it. I was using CPU_SUSP_HLT in my kernel; adding fvcool drops the average temp of my XP1800+ from 50C to 36C. The other thing to do, depending on whether you can take the machines offline (how many are there?), is to get a better heatsink and fan properly mounted on the CPU, and determine whether you can improve internal ventilation with case fans. -- Jud To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
Re: FreeBSD and AMD power management
On Wed, Jan 08, 2003 at 11:29:11PM -0500, J. Seth Henry wrote: > I have noticed that my Compaq IA-1's (AMD K6-2/266 & VIA chipset) run > substantially hotter under FreeBSD than under Linux. I didn't realize just > how much until the machines began spontaneously rebooting under load. > > Right now, I have a minimal 4.7R install (with X) running from a > microdrive - but I don't have problems until I start running X for long > periods of time. I am migrating from Midori linux with kernel rev 2.4.18, > and it can go for weeks (even months) running xmms locally. Just > windowing xmms from another machine will cause spontanous reboots under > FreeBSD. > > It doesn't appear to be a kernel panic - this machine has a thermal > protection circuit which will hold the system in reset if it gets too > warm, and so far, nothing has shown up in the logs (beyond the usual > startup message regarding / being unmounted improperly). This leads me to > believe that FreeBSD isn't issuing halts when it is idle, or the CPU is > simply "idle" less. I have noticed that FreeBSD accesses the microdrive a > *lot* (though Linux may be as well, but I can't hear it because it's > running from flash) Try the ports/sysutils/fvcool port --- http://www.nt.phys.kyushu-u.ac.jp/shimizu/ Using it has cut the average CPU temperature on my system from about 70C to about 50C. Cheers, Matthew -- Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks Savill Way PGP: http://www.infracaninophile.co.uk/pgpkey Marlow Tel: +44 1628 476614 Bucks., SL7 1TH UK To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
FreeBSD and AMD power management
I have noticed that my Compaq IA-1's (AMD K6-2/266 & VIA chipset) run substantially hotter under FreeBSD than under Linux. I didn't realize just how much until the machines began spontaneously rebooting under load. Right now, I have a minimal 4.7R install (with X) running from a microdrive - but I don't have problems until I start running X for long periods of time. I am migrating from Midori linux with kernel rev 2.4.18, and it can go for weeks (even months) running xmms locally. Just windowing xmms from another machine will cause spontanous reboots under FreeBSD. It doesn't appear to be a kernel panic - this machine has a thermal protection circuit which will hold the system in reset if it gets too warm, and so far, nothing has shown up in the logs (beyond the usual startup message regarding / being unmounted improperly). This leads me to believe that FreeBSD isn't issuing halts when it is idle, or the CPU is simply "idle" less. I have noticed that FreeBSD accesses the microdrive a *lot* (though Linux may be as well, but I can't hear it because it's running from flash) Is this a "normal" limitation in FreeBSD, or did I miss something in the kernel config? Thanks, Seth Henry jshamletcomcast(dot)net To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
Re: Power Management
- Original Message - From: "Fuzzy" <[EMAIL PROTECTED]> To: "Mark" <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Thursday, December 05, 2002 1:48 AM Subject: Re: Power Management > > I just got the APC 350AV; it also came with a RJ45 to USB cable. I wish > > they would have given me a serial cable, though. :( Would have saved > > me a lot of headache. So, you got the serial cable? What part-number is > > it? :) Then I can happily forget about getting it to work with usb. > > > > we got a good buy on the thing, $39 at Office Max. Wow, that is dirt-cheap! :) > the numbers on the serial end are 940-0128A. Hope this helps. It sure did; I will order one first thing tomorrow. :) Thanks! - Mark To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
Re: Power Management
- Original Message - From: "Fuzzy" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, December 05, 2002 1:14 AM Subject: RE: Power Management > we have one of the "new" dumb APC UPSes, it uses a special > cable that comes with the unit, (usb comes with, serial can be > gotten with a request), looks like rj45 on 1 end and either > usb or serial on the other end. Hey Fuzzy, :) I just got the APC 350AV; it also came with a RJ45 to USB cable. I wish they would have given me a serial cable, though. :( Would have saved me a lot of headache. So, you got the serial cable? What part-number is it? :) Then I can happily forget about getting it to work with usb. Thanks! - Mark To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
RE: Power Management
> O, I read the docs alright; did you? Had you done so, you would have seen > that apcupsd 3.8.5 (the ported version) does NOT support usb yet > on FreeBSD. > Furthermore, you would have read that usb support is only in experimental > phase since version 3.9.4 (not ported yet), and then only for Linux. I'm not using any usb stuff, nor did I say that it would work with usb. I just tried to give an answer to the original questions: Joseph Maxwell wrote: > Could someone advise on UPS systems and Power Management related > software for FREE BSD systems. > i.What systems are dependable and reasonable priced, esp. at the low > end for use with workstations > ii. Is it possible to power down several work stations > simultaneously from one UPS. > I am not concerned with any extended working after a power failure, just > an orderly shutdown of the whole system. I've seen some 1KVA units that > are capable of supporting several machines buy with only 1 serial port > connection on the back, thus connecting only one machine. Is there a way > to replicate the signals to several machines? Because of your previous post I thought that maybe you tried to install the linux version, and didn't install it from the ports dir. I use the serial signalling cables that came with the APC ups's myself. Running apcupsd on all my servers and clients, and it works just fine for me... YMMV --- Met vriendelijke groet / with kind regards, R.J. Zoontjens Radécom B.V. Dit bericht kan vertrouwelijke informatie bevatten. Indien u niet de geadresseerde van dit bericht bent, verzoeken wij u dit bericht te vernietigen zonder van de inhoud kennis te nemen en de inhoud ervan niet te gebruiken, niet te kopiëren en niet onder derden te verspreiden. This message may contain information which is privileged or confidential. If you are not the named addressee of this message please destroy it without reading, using, copying or disclosing its contents to any other person. To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
Re: Power Management
- Original Message - From: "R. Zoontjens" <[EMAIL PROTECTED]> To: "Mark" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Wednesday, December 04, 2002 7:42 PM Subject: RE: Power Management > > > APC Powerchute software does not work for FreeBSD, but apcupsd is a > > > good alternative: > > > > Is it? I just tried to install it; Linux-ware. It installed everything > > in the wrong directories, to start with. And it will not compile > > with usb-support. What a disappointment! > > try to install it from the ports: > > # cd /usr/ports/sysutils/apcupsd > # make > # make install > > then read the docs O, I read the docs alright; did you? Had you done so, you would have seen that apcupsd 3.8.5 (the ported version) does NOT support usb yet on FreeBSD. Furthermore, you would have read that usb support is only in experimental phase since version 3.9.4 (not ported yet), and then only for Linux. - Mark To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
RE: Power Management
> > APC Powerchute software does not work for FreeBSD, but apcupsd is a > > good alternative: > > Is it? I just tried to install it; Linux-ware. It installed everything in > the wrong directories, to start with. And it will not compile with > usb-support. What a disappointment! try to install it from the ports: # cd /usr/ports/sysutils/apcupsd # make # make install then read the docs --- Met vriendelijke groet / with kind regards, R.J. Zoontjens Radécom B.V. [EMAIL PROTECTED] Dit bericht kan vertrouwelijke informatie bevatten. Indien u niet de geadresseerde van dit bericht bent, verzoeken wij u dit bericht te vernietigen zonder van de inhoud kennis te nemen en de inhoud ervan niet te gebruiken, niet te kopiëren en niet onder derden te verspreiden. This message may contain information which is privileged or confidential. If you are not the named addressee of this message please destroy it without reading, using, copying or disclosing its contents to any other person. To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
Re: Power Management
- Original Message - From: "R. Zoontjens" <[EMAIL PROTECTED]> To: "Joseph Maxwell" <[EMAIL PROTECTED]>; "freebsd-questions@FreeBSD. ORG" <[EMAIL PROTECTED]> Sent: Monday, December 02, 2002 8:49 PM Subject: RE: Power Management > APC Powerchute software does not work for FreeBSD, but apcupsd is a > good alternative: Is it? I just tried to install it; Linux-ware. It installed everything in the wrong directories, to start with. And it will not compile with usb-support. What a disappointment! - Mark To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
Re: Power Management
The following URL has a link to a windows NT client: http://www.sibbald.com/apcupsd/ manual: http://www.sibbald.com/apcupsd/3.8manual/index.html --- Met vriendelijke groet / with kind regards, R.J. Zoontjens __ / __ \ _/ /_/ _ ___ / /_/ / __ `/ __ / _ \/ ___/ __ \/ __ `__ \ / _, _/ /_/ / /_/ / __/ /__/ /_/ / / / / / / /_/ |_|\__,_/\__,_/\___/\___/\/_/ /_/ /_/ Dit bericht kan vertrouwelijke informatie bevatten. Indien u niet de geadresseerde van dit bericht bent, verzoeken wij u dit bericht te vernietigen zonder van de inhoud kennis te nemen en de inhoud ervan niet te gebruiken, niet te kopiëren en niet onder derden te verspreiden. This message may contain information which is privileged or confidential. If you are not the named addressee of this message please destroy it without reading, using, copying or disclosing its contents to any other person. To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
Re: Power Management
In the last episode (Dec 02), Joseph Maxwell said: > Hello, > Could someone advise on UPS systems and Power Management related > software for FREE BSD systems. > i.What systems are dependable and reasonable priced, esp. at the low > end for use with workstations > ii. Is it possible to power down several work stations > simultaneously from one UPS. > I am not concerned with any extended working after a power failure, just > an orderly shutdown of the whole system. I've seen some 1KVA units that > are capable of supporting several machines buy with only 1 serial port > connection on the back, thus connecting only one machine. Is there a way > to replicate the signals to several machines? Network UPS Tools , at http://www.exploits.org/nut ( an old version is available in ports at ports/sysutils/nut ) supports a whole mess of UPSes, and works with multiple machines on a single UPS. -- Dan Nelson [EMAIL PROTECTED] To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
RE: Power Management
> Hello, > Could someone advise on UPS systems and Power Management related > software for FREE BSD systems. > i.What systems are dependable and reasonable priced, esp. at the low > end for use with workstations > ii. Is it possible to power down several work stations > simultaneously from one UPS. > I am not concerned with any extended working after a power failure, just > an orderly shutdown of the whole system. I've seen some 1KVA units that > are capable of supporting several machines buy with only 1 serial port > connection on the back, thus connecting only one machine. Is there a way > to replicate the signals to several machines? > > Thanks i. if you use APC Smart UPS (http://www.apcc.com): APC Powerchute software does not work for FreeBSD, but apcupsd is a good alternative: http://sourceforge.net/projects/apcupsd/ also see ports ii. orderly shutdown for server and clients is possible (FreeBSD, Windows NT,) The windows client is based on a small cygwin distribution. --- Met vriendelijke groet / with kind regards, R.J. Zoontjens __ / __ \ _/ /_/ _ ___ / /_/ / __ `/ __ / _ \/ ___/ __ \/ __ `__ \ / _, _/ /_/ / /_/ / __/ /__/ /_/ / / / / / / /_/ |_|\__,_/\__,_/\___/\___/\/_/ /_/ /_/ Dit bericht kan vertrouwelijke informatie bevatten. Indien u niet de geadresseerde van dit bericht bent, verzoeken wij u dit bericht te vernietigen zonder van de inhoud kennis te nemen en de inhoud ervan niet te gebruiken, niet te kopieren en niet onder derden te verspreiden. This message may contain information which is privileged or confidential. If you are not the named addressee of this message please destroy it without reading, using, copying or disclosing its contents to any other person. To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
Power Management
Hello, Could someone advise on UPS systems and Power Management related software for FREE BSD systems. i.What systems are dependable and reasonable priced, esp. at the low end for use with workstations ii. Is it possible to power down several work stations simultaneously from one UPS. I am not concerned with any extended working after a power failure, just an orderly shutdown of the whole system. I've seen some 1KVA units that are capable of supporting several machines buy with only 1 serial port connection on the back, thus connecting only one machine. Is there a way to replicate the signals to several machines? Thanks To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
