Re: advanced power management and linux?
Yep, You're going to fry the fan. You don't need a resistor on it either, just pull the connector off the PS Motherboard - pretty simple fix. Invert the PS so the fan port is pointed up, this will allow convection to occure and the hot air to escape the PS. I don't know how well it will run though, you're dealing with a switching power supply, not a traditional unit. If the PS does fry, I hope it doesn't actually take out your mommy board, I have seeen them toast so much equipment over the last couple of years, I will keep my fingers crossed for you. Best of luck, regards On Fri, 15 Sep 2000, Krzys Majewski wrote: Hm, the chopstick is starting to smell bad, gotta let the fan run for a bit.. the fan motor will probably burn out like this. Hm, really? I don't think the motor is running; the P/S makes absolutely no sound at all. Still going strong. Do mean that the motor will burn out because it isn't running, but should be? In this case, can I replace the (hard-wired) fan with some component from Radio Shack (a resistor??) which fools the circuit into thinking that it's a fan? What sort of component would I need? The fan is 12V, 0.15A. well you could always buy Apple's powerpc hardware, Steve Jobs apparently loathes fan noise and macs are rather quiet. most of them run debian quite nicely too ;-) (the negative side to this is the rather high prices) There it is.. -chris -- Unsubscribe? mail -s unsubscribe [EMAIL PROTECTED] /dev/null -- Jaye Inabnit, ARS ke6sls e-mail: [EMAIL PROTECTED] 707-442-6579 h/m 707-441-7096 p http://www.qsl.net/ke6slsICQ# 12741145 This mail composed with kmail on kde on X on linux warped by debian If it's stupid, but works, it ain't stupid.
RE: advanced power management and linux?
Not sure this is what people are looking for in this thread, but I bought a PCPC Silencer power supply rated at 275 watts a few years ago. It was not cheap, but it really has been quiet. Most of the time its barely audible. Plus, it's ultra reliable. If something goes wrong with that computer, it's not the PS. good luck, Andrew Hagen [EMAIL PROTECTED] http://clam.rutgers.edu/~ahagen/
Re: advanced power management and linux?
Hm, the chopstick is starting to smell bad, gotta let the fan run for a bit.. the fan motor will probably burn out like this. Hm, really? I don't think the motor is running; the P/S makes absolutely no sound at all. Still going strong. Do mean that the motor will burn out because it isn't running, but should be? In this case, can I replace the (hard-wired) fan with some component from Radio Shack (a resistor??) which fools the circuit into thinking that it's a fan? What sort of component would I need? The fan is 12V, 0.15A. well you could always buy Apple's powerpc hardware, Steve Jobs apparently loathes fan noise and macs are rather quiet. most of them run debian quite nicely too ;-) (the negative side to this is the rather high prices) There it is.. -chris
Re: advanced power management and linux?
On Fri, Sep 15, 2000 at 09:06:18PM -0700, Krzys Majewski wrote: Hm, the chopstick is starting to smell bad, gotta let the fan run for a bit.. the fan motor will probably burn out like this. Hm, really? I don't think the motor is running; the P/S makes absolutely no sound at all. Still going strong. Do mean that the motor will burn out because it isn't running, but should be? the fan IS running but you just jam a chopstick in to prevent it from moving right? so the motor is still trying to run but is stuck, so the motor will eventually burn out in this condition. a better way to stop the fan is to unplug it. In this case, can I replace the (hard-wired) fan with some component from Radio Shack (a resistor??) which fools the circuit into thinking that it's a fan? What sort of component would I need? The fan is 12V, 0.15A. you mean the powersupply can tell that the fan is removed and refuses to work without it? in that case i am not sure, a resister may very well do the job but you could short things out if its the wrong size. im not though ive never needed to disable a powersuppy fan before. (mine are not that noisy) -- Ethan Benson http://www.alaska.net/~erbenson/ pgpor8ybyZSZg.pgp Description: PGP signature
Re: advanced power management and linux?
There is a purpose for the power supply fan you know. I had one going on the fritz ( running slow and stopping at times). I ran it this way for 6mo or so. Then all at once my hd started going haywire. Short story: I had to replace the hd and power supply. Dean Krzys Majewski wrote: Hm, the chopstick is starting to smell bad, gotta let the fan run for a bit.. the fan motor will probably burn out like this. Hm, really? I don't think the motor is running; the P/S makes absolutely no sound at all. Still going strong. Do mean that the motor will burn out because it isn't running, but should be? In this case, can I replace the (hard-wired) fan with some component from Radio Shack (a resistor??) which fools the circuit into thinking that it's a fan? What sort of component would I need? The fan is 12V, 0.15A. well you could always buy Apple's powerpc hardware, Steve Jobs apparently loathes fan noise and macs are rather quiet. most of them run debian quite nicely too ;-) (the negative side to this is the rather high prices) There it is.. -chris -- Unsubscribe? mail -s unsubscribe [EMAIL PROTECTED] /dev/null
Re: advanced power management and linux?
Dean [EMAIL PROTECTED] writes: There is a purpose for the power supply fan you know. I had one going on the fritz ( running slow and stopping at times). I ran it this way for 6mo or so. Then all at once my hd started going haywire. Short story: I had to replace the hd and power supply. Dean 6 months is a long time.. sounds to me like you either didn't notice it was stopping, or else you enjoyed the peace and quiet too much to do anything about it! Also it's not clear from the context that the hd failure was related to the fan problem. Right now I've moved the P/S outside the case. This leaves a hole for hot air to escape from the case, and keeps the red-hot,glowing,smoking P/S from heating the other components. lm-sensors says: temp: +33.62 C fan2: 3901 RPM Not sure what this means but it doesn't sound too dramatic, we'll see how my P/S takes it. Sticking some heat sinks on it today. -chris
RE: advanced power management and linux?
There used to be computer called the Brick which was about that size and filed with a gel that conducted heat to the outside. It was black and just radiated the heat away with no fans or noise. Also, I've seen a prototype super-fast CPU that used a liquid cooling system like a car. Can you imagine your network going down because the radiator was leaking! g Dexter Graphic
RE: advanced power management and linux?
OK Here's the latest P/S outside computer (sitting on top of case cover insulated by two wooden chopsticks). Fan disconnected (looks like cutting the wire didn't cause the P/S to panic). P/S case removed. The two aluminum (?) heat sinks that came with the P/S are too hot to touch for more than about one second. Getting additional heat sinks RSN.. chris On Sat, 16 Sep 2000, Dexter Graphic wrote: There used to be computer called the Brick which was about that size and filed with a gel that conducted heat to the outside. It was black and just radiated the heat away with no fans or noise. Also, I've seen a prototype super-fast CPU that used a liquid cooling system like a car. Can you imagine your network going down because the radiator was leaking! g Dexter Graphic -- Unsubscribe? mail -s unsubscribe [EMAIL PROTECTED] /dev/null
RE: advanced power management and linux?
On Sat, 16 Sep 2000, Dexter Graphic wrote: There used to be computer called the Brick which was about that size and filed with a gel that conducted heat to the outside. It was black and just radiated the heat away with no fans or noise. Also, I've seen a prototype super-fast CPU that used a liquid cooling system like a car. Can you imagine your network going down because the radiator was leaking! g Liquid cooling is the primary method abord submarines. Fans are too noisy. Seems we should be taking some of that military technology into the marketplace. It would be nice for server rooms to have liquid cooled systems rather than fans. It would reduce noise, dirt contamination inside machines, and reduce air conditioning requirements (albeit not reducing overall coolong requirements). Cray did (does?) that on some of their systems. Heatsinks for liquid cooling look much different ... no fins! Just a couple of fittings for the input and output liquid.
RE: advanced power management and linux?
Got two heat sinks, black metal with fins, about 4cm x 10 cm x 3 cm. Slapped them on the original heatsinks with some white heatsink compound (aka thermal grease, I think) in between. They are hot but not too hot to touch, yet. Good news, my local computer store sez the P/S fan does nothing in the way of cooling the remaining components, so I'm off the hook there (note the P/S is no longer inside the case). I suspected this (also a hot P/S can't help to cool the case that much even if it has a fan) but it wasn't obvious.. was it? Now I'm wondering if the P/S gets significantly hotter when the machine is working hard (hdd drawing power, cpu drawing lots of power, etc.) then when it's suspended. In which case I could maybe put a switch in the fan circuit and turn it off manually when I suspend the machine, leaving the fan on the rest of the time. Linux ACPI drivers can't do this yet (microsoft ones can). Unless someone has some experimental acpi code they can donate for doing this. Hm, maybe a hacking project for me.. Then again, maybe the P/S appreciates being left on all the time and it's better not to power it off (or almost off) on suspend? Too many variables.. -chris On Sat, 16 Sep 2000, Krzys Majewski wrote: OK Here's the latest P/S outside computer (sitting on top of case cover insulated by two wooden chopsticks). Fan disconnected (looks like cutting the wire didn't cause the P/S to panic). P/S case removed. The two aluminum (?) heat sinks that came with the P/S are too hot to touch for more than about one second. Getting additional heat sinks RSN.. chris
RE: advanced power management and linux?
Thanks for the tip. I checked out the web page, but I'm still wondering if these power supplies have a variable-speed fan. Do they have a temperature sensor? Do they support the fan on/off connector which is part of the new ATX spec? Several people cited the cd-rom as a major source of noise, I'm curious about this. Mine doesn't make any noise, probably because it's off! Of course if I try to read a data cd and it goes at 52x, it wails, but this almost never happens. -chris I've been using PC Power and Cooling Silencer power supplies for years and they sure do run a lot quieter than standard ones. On my machine it is the CD-ROM that makes the most noise. Here is a link to their web site: http://www.pcpowercooling.com -Dexter
RE: advanced power management and linux?
From: Krzys Majewski [mailto:[EMAIL PROTECTED] Sent: Thursday, September 14, 2000 23:41 Thanks for the tip. I checked out the web page, but I'm still wondering if these power supplies have a variable-speed fan. Do they have a temperature sensor? Do they support the fan on/off connector which is part of the new ATX spec? No, no, and no. I just went to their site to check the specs and noticed that they have a new model, the Silencer 400 ATX. Last time I ordered 275 watts was as good as it got. smile http://www.pcpowercooling.com/products/power_supplies/ultra_quiet/index.htm Several people cited the cd-rom as a major source of noise, I'm curious about this. Mine doesn't make any noise, probably because it's off! Of course if I try to read a data cd and it goes at 52x, it wails, but this almost never happens. -chris Yes, that's what I mean. When I play music CD's the drive noise is irritating. I find that older slower drives are much quieter. I've been working on plans for a sound-proof case-cover which I think would be a big hit with anyone running their computer in a bedroom, a small office, or in a multimedia setting. When I'm meditating all those motor noises really start to bother me. Dexter Graphic
( 1u power supp ) -- was RE: advanced power management and linux?
hi ya dexter... thanx for the link it turns out they have a 250W 1U power supply tooo http://www.pcpowercooling.com/products/power_supplies/highperformance/turbocools/index_hp_1u.htm ( good for 1U scsi3-based raid5 ) c ya alvin http://www.linux-1U.net On Fri, 15 Sep 2000, Dexter Graphic wrote: From: Krzys Majewski [mailto:[EMAIL PROTECTED] Sent: Thursday, September 14, 2000 23:41 Thanks for the tip. I checked out the web page, but I'm still wondering if these power supplies have a variable-speed fan. Do they have a temperature sensor? Do they support the fan on/off connector which is part of the new ATX spec? No, no, and no. I just went to their site to check the specs and noticed that they have a new model, the Silencer 400 ATX. Last time I ordered 275 watts was as good as it got. smile http://www.pcpowercooling.com/products/power_supplies/ultra_quiet/index.htm Several people cited the cd-rom as a major source of noise, I'm curious about this. Mine doesn't make any noise, probably because it's off! Of course if I try to read a data cd and it goes at 52x, it wails, but this almost never happens. -chris Yes, that's what I mean. When I play music CD's the drive noise is irritating. I find that older slower drives are much quieter. I've been working on plans for a sound-proof case-cover which I think would be a big hit with anyone running their computer in a bedroom, a small office, or in a multimedia setting. When I'm meditating all those motor noises really start to bother me. Dexter Graphic -- Unsubscribe? mail -s unsubscribe [EMAIL PROTECTED] /dev/null
Re: advanced power management and linux?
Dexter Graphic [EMAIL PROTECTED] writes: No, no, and no. I just went to their site to check the specs and noticed that they have a new model, the Silencer 400 ATX. Last time I ordered 275 watts was as good as it got. smile http://www.pcpowercooling.com/products/power_supplies/ultra_quiet/index.htm I talked to PCPC this morning, I can get the P/S for about 200$ Canadian from their Toronto distributor. For that price, one would think they actually generate *negative* noise. Though I might get one, we'll see. Right now I've got my stock P/S hanging outside the case with a lacquered chopstick jammed between the fan blades. It's been going for a good hour now and still hasn't fried. Anybody know if power supplies generate less heat when there is less power being drawn from them (e.g. in apm --suspend mode) or do they always generate the same amount of heat? Anybody got any interesting P/S overheating stories? My rationale for not worrying too much about the other components is: - The cpu has its own damn fan - There is a hole where the P/S used to be, hot air can escape through there if it feels the need - sensors reports 36.18 C, that doesn't sound so bad.. or does it? How do I find out what a reasonable temperature is for my machine? Hm, the chopstick is starting to smell bad, gotta let the fan run for a bit.. I've been working on plans for a sound-proof case-cover which I think would be a big hit with anyone running their computer in a bedroom, a small office, or in a multimedia setting. When I'm meditating all those motor noises really start to bother me. That's funny, ever since I started looking into this I've found tons of people on the net who like their computers quiet. And yet, not one of the local computer stores, big or small, seem to know the first thing about it. -chris
Re: advanced power management and linux?
On Fri, Sep 15, 2000 at 06:43:07PM -0700, Krzys Majewski wrote: Hm, the chopstick is starting to smell bad, gotta let the fan run for a bit.. the fan motor will probably burn out like this. I've been working on plans for a sound-proof case-cover which I think would be a big hit with anyone running their computer in a bedroom, a small office, or in a multimedia setting. When I'm meditating all those motor noises really start to bother me. That's funny, ever since I started looking into this I've found tons of people on the net who like their computers quiet. And yet, not one of the local computer stores, big or small, seem to know the first thing about it. well you could always buy Apple's powerpc hardware, Steve Jobs apparently loathes fan noise and macs are rather quiet. most of them run debian quite nicely too ;-) (the negative side to this is the rather high prices) -- Ethan Benson http://www.alaska.net/~erbenson/ pgpruJLjS677N.pgp Description: PGP signature
RE: advanced power management and linux?
...Looking around the web it looks like there are lots of places in Holland which sell devices for making machines quieter. Here in the wild west it looks like everybody sells the same generic power supply and any attempts to obtain information about quieter ones are typically met with an incredulous stare. This is probably because in America people believe that if something makes a lot of noise, then it must be really powerful and hence good. Maybe you can recommend a vendor of the above-mentioned kits (or whatever silencing solution you currently use). Ideally one which will ship to Canada, although I have some friends in Holland who could forward the goods if need be. -chris I've been using PC Power and Cooling Silencer power supplies for years and they sure do run a lot quieter than standard ones. On my machine it is the CD-ROM that makes the most noise. Here is a link to their web site: http://www.pcpowercooling.com -Dexter
Re: advanced power management and linux?
On Tue, Sep 12, 2000 at 07:50:08PM -0700, Eric G . Miller wrote: Squeaky brakes make alot of noise, but nobody'd confuse that with 'power' and 'goodness'. In fact, the opposite conclusion might be drawn. It's always wrong to make sweeping generalizations, even about Micro$oft! *Sometimes* it is good to make sweeping generalisations, especially about Micros~1. -- Bruce If the universe were simple enough to be understood, we would be too simple to understand it.
Re: advanced power management and linux?
Tip 3: there are kits available which will control the speed of the PSU fan by means of an NTC. I bought them for US$10 in the local electronics shop and they work fine. Alternatively a resistor in the circuit of the fan might work too for fixed speed reduction. This sounds interesting. What's an NTC? Looking around the web it looks like there are lots of places in Holland which sell devices for making machines quieter. Here in the wild west it looks like everybody sells the same generic power supply and any attempts to obtain information about quieter ones are typically met with an incredulous stare. This is probably because in America people believe that if something makes a lot of noise, then it must be really powerful and hence good. Maybe you can recommend a vendor of the above-mentioned kits (or whatever silencing solution you currently use). Ideally one which will ship to Canada, although I have some friends in Holland who could forward the goods if need be. -chris
Re: advanced power management and linux?
On Tue, 12 Sep 2000, Krzys Majewski wrote: Tip 3: there are kits available which will control the speed of the PSU fan by means of an NTC. I bought them for US$10 in the local electronics shop and they work fine. Alternatively a resistor in the circuit of the fan might work too for fixed speed reduction. This sounds interesting. What's an NTC? Looking around the web NTC = Negative Temperature Coefficient (thermistor) A thermistor is a resistor whose value drops when the temperature rises (or vice versa), therebye allowing more current flow to the fan and speeding it up when the thermistor is hot (or slowing it down when cool). ... Maybe you can recommend a vendor of the above-mentioned kits (or whatever silencing solution you currently use). Ideally one which will ship to Canada, although I have some friends in Holland who could forward the goods if need be. If you can get the specs of the device (resistance at 25C, wattage) you can probably pick one up at RadioShack, or an electronics wholesaler that has counter sales (Future Electronics is in major centers all across Canada, IIRC), it would be a simple matter to splice it inline with the power leads to the fan - just make sure you don't get a PTC device :). Although a kit would probably be best if you are not comfortable with a soldering iron and cabling. later, Bruce
Re: advanced power management and linux?
Krzys Majewski wrote: typically met with an incredulous stare. This is probably because in America people believe that if something makes a lot of noise, then it must be really powerful and hence good. Inappropriate and unnecessary, IMHO. -- Brian J. Stults Doctoral Candidate Department of Sociology University at Albany - SUNY Phone: (518) 442-4652 Fax: (518) 442-4936 Web: http://www.albany.edu/~bs7452
Re: advanced power management and linux?
On Tue, Sep 12, 2000 at 09:06:35PM -0400, Brian Stults wrote: Krzys Majewski wrote: typically met with an incredulous stare. This is probably because in America people believe that if something makes a lot of noise, then it must be really powerful and hence good. Inappropriate and unnecessary, IMHO. Squeaky brakes make alot of noise, but nobody'd confuse that with 'power' and 'goodness'. In fact, the opposite conclusion might be drawn. It's always wrong to make sweeping generalizations, even about Micro$oft! -- /bin/sh ~/.signature: Command not found
Re: advanced power management and linux?
Hans wrote: Laptops are noisy too and cost a bundle Interesting, as I type this, my laptop has parts in motion. Laptop folks should be sure to check out noflushd in unstable. -- see shy jo
Re: advanced power management and linux?
Joey Hess wrote: Hans wrote: Laptops are noisy too and cost a bundle Should read '0 parts' + V Interesting, as I type this, my laptop has parts in motion. Laptop folks should be sure to check out noflushd in unstable. -- see shy jo
Re: advanced power management and linux?
At 12.17 28/7/00 -0700, Krzys Majewski ha escrit: It's very hard to guess. If you want silence, you live in a small apartment and you have some extra cash, buy a laptop and you'll get in love with it (but check the hardware, do not get a winmodem with it!). If you have to This is very interesting! I hadn't considered laptops but now I will. Does anyone else have experience with running linux on a laptop? It's the same than with PC's but with more strange stuff like infrared, PCMCIA... Can I hook up my parallel-port ZIP drive to a laptop? Can I hook up my monitor? My keyboard? My mouse? Check the Laptop HOWTO, the Hardware compatibility howto and get some ideas in the Linux on Laptops http://www.cs.utexas.edu/users/kharker/linux-laptop/ If I keep the laptop plugged in the whole time is the battery simply ignored, or does it slowly drain or leak acid over the years? Note I have no intention of using this putative laptop anywhere other than my desk, but it would be really exciting to have one! If you have the battery inside and you work plugged, the battery goes little-charged. You stop and you start again a day after. The power of the battery has discharged a little bit. This is very bad for batteries. If you are going to work at home, take the battery off the laptop. But once every two months, for example, use the battery until starts to complain it's low. What are some good display technologies, anyone have experience sitting up all night staring at an lcd screen? Can you still see? TFT is somewhat better than DTSN, but it's also somewhat 175$ (Catalan market) more expensive than DTSN. I use DTSN and it's better for the eyes than a regular monitor. But... fast things that appear on screen go blurry. If you play Quake, you'll have the same experience that if you'd play Quake very drunk. Ah, an important thing: If you are going to buy a PC, never trust the vendor or the techical support! Never! Never! You can end up with propietary and cheap hardware as I did _twice_. All Satellites from Toshiba had Windmodems! I.T. ___ Do You Yahoo!? Achetez, vendez! À votre prix! Sur http://encheres.yahoo.fr
Re: advanced power management and linux?
At 15.15 27/7/00 -0700, heu escrit: I'm researching new hardware for my linux box. I live in a small apartment so my main requirement is that the damn thing be quiet. Does anyone have reports of advanced power management working under linux? I know that is in principle supported, but what are the results? The quietest machine I've seen was an IBM aptiva running windows, it was capable of shutting down everything when it went to sleep, as far as I could tell. but I couldn't hear it. Tell me what kind of hardware you have and how quiet it is! From my previous experiences, if you want noisy stuff (not Linux related, just hardware related): Pioneer 36X DVD: very noisy. Creative CD-ROM 48X: very very noisy. Bulk CD-ROM 6X: very silent (well, the Playstation is also 2X and it's very noisy! :) ) In HDDs it's very difficult to guess: Quantum 8 Gb: very silent. Quantum 10 Gb: quite noisy. Samsung 1 Gb: very noisy. Samsung 10 Gb: very silent. Seagate 3 Gb: quite noisy. Seagate 4 Gb: extremely and insane noisy. Taking apart Seagate, very contradictory, isn't it? There is a company that sells PCs that seem to be silent (Silent Systems), but sure they are expensive and guess what strange hardware there's inside! It's very hard to guess. If you want silence, you live in a small apartment and you have some extra cash, buy a laptop and you'll get in love with it (but check the hardware, do not get a winmodem with it!). Hope that helps, I.T. ___ Do You Yahoo!? Achetez, vendez! À votre prix! Sur http://encheres.yahoo.fr
Re: advanced power management and linux?
It's very hard to guess. If you want silence, you live in a small apartment and you have some extra cash, buy a laptop and you'll get in love with it (but check the hardware, do not get a winmodem with it!). This is very interesting! I hadn't considered laptops but now I will. Does anyone else have experience with running linux on a laptop? Can I hook up my parallel-port ZIP drive to a laptop? Can I hook up my monitor? My keyboard? My mouse? If I keep the laptop plugged in the whole time is the battery simply ignored, or does it slowly drain or leak acid over the years? Note I have no intention of using this putative laptop anywhere other than my desk, but it would be really exciting to have one! Last I checked the displays were getting pretty good too, so maybe I could junk my monitor while I'm at it. What are some good display technologies, anyone have experience sitting up all night staring at an lcd screen? Can you still see? -chris
Re: advanced power management and linux?
I just bought a dell inspiron 5000, with the svga (1400x1050) 15 screen. I love it, and I have never really liked laptops before. I still prefer my desktop CRT for video quality, but this is a NICE screen. Debian installed on it fine, I only ran into some problems getting the network interface (a 3com 3c575) to work during the installiation. I had to do a lot of putzing with modules by hand. Other than that, no problems. I installed xfree4.0.1 from the binaries, I even watched a few DVD's in linux on it. -Aaron Solochek [EMAIL PROTECTED] Krzys Majewski wrote: It's very hard to guess. If you want silence, you live in a small apartment and you have some extra cash, buy a laptop and you'll get in love with it (but check the hardware, do not get a winmodem with it!). This is very interesting! I hadn't considered laptops but now I will. Does anyone else have experience with running linux on a laptop? Can I hook up my parallel-port ZIP drive to a laptop? Can I hook up my monitor? My keyboard? My mouse? If I keep the laptop plugged in the whole time is the battery simply ignored, or does it slowly drain or leak acid over the years? Note I have no intention of using this putative laptop anywhere other than my desk, but it would be really exciting to have one! Last I checked the displays were getting pretty good too, so maybe I could junk my monitor while I'm at it. What are some good display technologies, anyone have experience sitting up all night staring at an lcd screen? Can you still see? -chris -- Unsubscribe? mail -s unsubscribe [EMAIL PROTECTED] /dev/null
Re: advanced power management and linux?
Laptops are noisy too and cost a bundle + you have to buy cards (modem, network, scsi). You can buy two desktops for the price of one notebook if you shop around (I can buy at least three, but hey, I'm Dutch, I watch every penny :-). BTW, APM is for thing like CPU, PCMCIA cards, not HDs, etc. What you like to focus on is HDs and fans (both CPU as well as PSU). I live in a one-room place and have three machines running all the time, without making me go crazy: Pentium 120, Pentium 200, Celeron 366 Laptop. Couple of tips for the desktops. Tip 1: stay away from Quantum HDs, all the ones I've had start whining after a while. IBM is what I use now and they are much better, but not perfect either. Tip 2: try to run the CPU fan on 7 volts instead of 12 volts. Slow down is marginal, noise reduction is huge. Might be a bit tougher now that most CPU fans plug into the motherboard for power. Tip 3: there are kits available which will control the speed of the PSU fan by means of an NTC. I bought them for US$10 in the local electronics shop and they work fine. Alternatively a resistor in the circuit of the fan might work too for fixed speed reduction. Tip 4: use hdparm with the -S switch to suspend HDs after being idle for a while. Tip 5: Rip out all the fans in your computer and move to Lapland, Iceland, Siberia, Antarctica. Drill a hole in the wooden wall of your shack, buy some heat conducting pipe and lead it from the hole to the PC. Okay, I'm getting a little carried away now. Hope this helps a bit. Hans --- It's nice to be like, but better by far to get paid -- Liz Phair
Re: advanced power management and linux?
Tip 4: use hdparm with the -S switch to suspend HDs after being idle for a while. I tried this on my current (and noisy) machine, but it said 16:05:04/etc# hdparm -S 5 /dev/sda operation not supported on SCSI disks Is there an alternative for SCSI? -chris
RE: advanced power management and linux?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 -Original Message- From: Hans [mailto:[EMAIL PROTECTED] Sent: Saturday, July 29, 2000 12:22 AM To: Krzys Majewski; I. Tura Cc: debian-user@lists.debian.org Subject: Re: advanced power management and linux? Laptops are noisy too and cost a bundle + you have to buy cards (modem, network, scsi). You can buy two desktops for the price of one notebook if you shop around (I can buy at least three, but hey, I'm Dutch, I watch every penny :-). I agree. snip Tip 1: stay away from Quantum HDs, all the ones I've had start whining after a while. Most of them are loud even before this while. :) IBM is what I use now and they are much better, but not perfect either. I recently bought 2 9GB IBM DNES-30917W (7200RPM, LVD) for my little 24/7 server, which has to reside in the living room. They may not be the fastest but cheap and silent they are. Add soft-raid and you have all you could want. A rule of thumb seems to be to use more but slower devices for hds, fans, ... Tip 2: try to run the CPU fan on 7 volts instead of 12 volts. Slow down is marginal, noise reduction is huge. Wouldn't do it, but that's just me. It really helps... Tip 4: use hdparm with the -S switch to suspend HDs after being idle for a while. May not be too good for the hds, depending on the hds, of course. You should rather get a specially opimized PS or put a high-quality fan in. I still can't believe how much difference that did make. Christian -BEGIN PGP SIGNATURE- Version: GnuPG v1.0.2 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE5ghn5txWmQklOL8URAhUeAKCSQOtxoSQSYxdfUHrcpY3LllVDZwCeKomg 4ZtLQxAOvkdTZ/RG44WV1j0= =KjgN -END PGP SIGNATURE-
advanced power management and linux?
I'm researching new hardware for my linux box. I live in a small apartment so my main requirement is that the damn thing be quiet. Does anyone have reports of advanced power management working under linux? I know that is in principle supported, but what are the results? The quietest machine I've seen was an IBM aptiva running windows, it was capable of shutting down everything when it went to sleep, as far as I could tell. Presumably the cpu fan was still going (?) but I couldn't hear it. Tell me what kind of hardware you have and how quiet it is! cheers chris
RE: advanced power management and linux?
On 27-Jul-2000 Krzys Majewski wrote: I'm researching new hardware for my linux box. I live in a small apartment so my main requirement is that the damn thing be quiet. Does anyone have reports of advanced power management working under linux? I know that is in principle supported, but what are the results? The quietest machine I've seen was an IBM aptiva running windows, it was capable of shutting down everything when it went to sleep, as far as I could tell. Presumably the cpu fan was still going (?) but I couldn't hear it. Tell me what kind of hardware you have and how quiet it is! hdparm can put a hard drive to sleep if the bios on the computer can talk to linux apm it can be suspended and controlled that way aptivas are strange beast with odd hardware, good luck with getting linux on them I had a world of a time getting Windows happy on them.
