Linux-Hardware Digest #287, Volume #10 Fri, 21 May 99 02:13:32 EDT
Contents:
Re: Which modem to take (elmer smeckert)
the HZ macro.. err. (maybe a trivia question) ("Vladimir G. Stanishev")
HELP!! X problems:ATI Rage LT Pro on Compaq 1675 Laptop (Chris Bower)
Addressing SCSI Controllers?? ([EMAIL PROTECTED])
Addressing SCSI Controllers?? ([EMAIL PROTECTED])
Re: i'm killed 3 cd-rom drives!!! ("Terry Fielder")
PS/2 mouse problems with 2.2.x (Stefan Mueller)
Re: [Q] Dual CPU or double speed single ? Help me to chose please. ("Jose M. Urena")
Re: SB PCI64V (Legacy driver) ("Jose M. Urena")
Re: Help with modem setup (elmer smeckert)
Re: Is emachine's 400i good for Linux ("Prasanth Kumar")
Re: Building a small linux box (Allen Ahoffman)
Re: How to SILENCE a MODEM? (elmer smeckert)
Re: modem trouble = IRQ Conflict. (elmer smeckert)
accurate timer - HELP! (Dorin-Ioan Marinca)
how's this for a cheap webserver? (Lyn A Headley)
Re: Dual SCSI Adapter device assignment help? ([EMAIL PROTECTED])
----------------------------------------------------------------------------
Date: Thu, 20 May 1999 21:56:22 -0700
From: elmer smeckert <[EMAIL PROTECTED]>
Subject: Re: Which modem to take
Roy;
The best source of information for this kind of thing is the
manufacturer.
3Com is on the web and you should be able to find the specs for their modems
on their site. That will be the best source of information.
By the way, another "bad" term to watch for is "RPI" or Rockwel Protocol
Interface."
That is the heart of the Win Modem.
Best wishes.
Roy Goodman wrote:
> I'm looking seriously at a particular laptop which comes with a choice of
> modems and am having trouble getting a straight answer as to whether the
> modems that are offered are WinModems or will work under Linux. I've
> looked at the "Winmodems are not Modems" page and its list of usable and
> unusable modems, and some of these have question marks.
>
> The three modems are:
> Psion Gold Card Global 56Kflex PCMCIA
>
> 3COM Megahertz 56K Global Modem PC Card: model # cc1560i, which has a
> question mark next to it
>
> 3COM 10/100 LAN+56K Modem CardBus PC Card: model #3ccfem656
>
> If nobody has installed one of these, what should I be looking for in the
> documentation for these modems?
>
> Thanks
--
Y los otros animales de la granja tambien se reian de ella.
La vaca que decia "Oink" se sentia muy triste.
------------------------------
From: "Vladimir G. Stanishev" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.development.system
Subject: the HZ macro.. err. (maybe a trivia question)
Date: Fri, 21 May 1999 00:28:13 -0400
Why would changing the value of HZ change the cpu MHz rate reported by
/proc/cpuinfo? and the bogomips?
here is what I get.
HZ 100
cpuMHz :333.424832
bogomips: 665.19
HZ 1000
cpu: 333.48414
bogomips: 659.46
HZ 10000
cpu: 334.168017
bogomips. 604.16
HZ 50000
cpu: 343.540026
bogomips: 409.60
HZ 100000
cpu: 350.060023
bogomips: 819.20
------------------------------
From: Chris Bower <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
Subject: HELP!! X problems:ATI Rage LT Pro on Compaq 1675 Laptop
Date: Thu, 20 May 1999 23:33:50 -0500
Help!
Is there any way to get an ATI Rage LT Pro working with X on a laptop?
I've tried everything and have had no success...
------------------------------
From: [EMAIL PROTECTED]
Subject: Addressing SCSI Controllers??
Date: Fri, 21 May 1999 04:42:03 GMT
I have two SCSI Controllers in a Dell 410 Wkstn.
One is an onboard controller aic7890/aic7880 and
the other is an Adaptec 2940AU. Both use the
AIC7XXX driver. Apparently, because of a shared
interrupt on the onboard controller, the second of
two SCSI drives I have connected to this
controller cannot be seen if any device is
connected to the secondary port. I have relocated
all of the devices on the secondary controller to
my 2940AU and they function correctly their. I
can see both disks on the on board controller.
The only problem is that Linux is recognizing the
adapters in the reverse order from what I would
like. The 2940AU is SCSI0 and the onboard
controller is SCSI1. This results in
inconvienient addressing for my SCSI disks. The
JAZ drive and the zip drive I have connected to
the 2940AU are /dev/sda and /dev/sdb respectively.
The two hard drives are /dev/sdc and /dev/sdd.
This would be OK, except the BIOS apparently only
recognizes two boot drives and as a result, LILO
will not boot from the partitions on either drive.
I can boot successfully from diskette but would
like to boot directly from Sys. Commander.
Is there some way that I can get Linux to reverse
the detection order for the two SCSI controllers?
I have investigated devfs, but don't understand it
well enough to try it. I believe that if the
onboard controller was scsi0 and the 2940 was
scsi1, all would be well with the drive
addressing.
I'd welcome any suggestions or pointers to the
info that explains how to correct the problem
Jan Julian
--== Sent via Deja.com http://www.deja.com/ ==--
---Share what you know. Learn what you don't.---
------------------------------
From: [EMAIL PROTECTED]
Subject: Addressing SCSI Controllers??
Date: Fri, 21 May 1999 04:42:04 GMT
I have two SCSI Controllers in a Dell 410 Wkstn.
One is an onboard controller aic7890/aic7880 and
the other is an Adaptec 2940AU. Both use the
AIC7XXX driver. Apparently, because of a shared
interrupt on the onboard controller, the second of
two SCSI drives I have connected to this
controller cannot be seen if any device is
connected to the secondary port. I have relocated
all of the devices on the secondary controller to
my 2940AU and they function correctly their. I
can see both disks on the on board controller.
The only problem is that Linux is recognizing the
adapters in the reverse order from what I would
like. The 2940AU is SCSI0 and the onboard
controller is SCSI1. This results in
inconvienient addressing for my SCSI disks. The
JAZ drive and the zip drive I have connected to
the 2940AU are /dev/sda and /dev/sdb respectively.
The two hard drives are /dev/sdc and /dev/sdd.
This would be OK, except the BIOS apparently only
recognizes two boot drives and as a result, LILO
will not boot from the partitions on either drive.
I can boot successfully from diskette but would
like to boot directly from Sys. Commander.
Is there some way that I can get Linux to reverse
the detection order for the two SCSI controllers?
I have investigated devfs, but don't understand it
well enough to try it. I believe that if the
onboard controller was scsi0 and the 2940 was
scsi1, all would be well with the drive
addressing.
I'd welcome any suggestions or pointers to the
info that explains how to correct the problem
Jan Julian
--== Sent via Deja.com http://www.deja.com/ ==--
---Share what you know. Learn what you don't.---
------------------------------
From: "Terry Fielder" <[EMAIL PROTECTED]>
Crossposted-To:
comp.os.linux,comp.os.linux.admin,comp.os.linux.help,comp.os.linux.redhat,comp.os.linux.setup
Subject: Re: i'm killed 3 cd-rom drives!!!
Date: Thu, 20 May 1999 17:45:01 GMT
>From a logical standpoint, I agree with the others that linux cannot harm
the cd. However, I know someone who wrecked 2 12X cdroms, wrecked one,
thought it was defective and took it back, then wrecked the replacement.
I wonder if maybe the "auto slowdown", (which really is a feature) is
implemented by the DOS/windows drive, ie the drive asks the OS if it
can/should slow down cause it is detecting a problem. Clearly the older
non-inhanced linux drivers would not respond to this feature, and so the
drive never slows down and exposes itself to risk... ?
This is speculation only. Someone connected should ask a cdrom mfg/ cdrom
device driver writer to see if this is the case and if so what can be done
about it. (ie what is the protocol so we can enhance the cd drivers...)
Terry Fielder
[EMAIL PROTECTED]
Jeremy Prellwitz <[EMAIL PROTECTED]> wrote in message
news:4SL03.1118$[EMAIL PROTECTED]...
>does anyone know why i keep destroying cd-rom drives while trying to
install
>Linux. i can install Linux (Redhat 5.1 or 5.2) just fine when using my old
>4x cd-rom drive. but when ever i've tried installing Linux using one of
>those new UDMA drives i've killed it. i've wrecked a 24x, a 32x and a 36x
>cd-rom drives.
>
>why is this happening???? why is everyting ok with my 4x.
>
>when installing...usually what happens is that the drive starts stalling or
>something. it stops occasionally and then trys to spin up again....and
this
>goes on repeatedly...getting more frequent as time progresses....all the
>time still working correctly...very slowly though mind you....until it just
>dies...and doesn't start up again.
>
>any help in this matter would very much appreciated!
>
>Jeremy
>
>
------------------------------
From: Stefan Mueller <[EMAIL PROTECTED]>
Subject: PS/2 mouse problems with 2.2.x
Date: 20 May 1999 17:43:11 GMT
Hi guys,
I�ve got a strage problem with my notebook (Acer 970MMX). When moving to
2.2.x kernel versions, the mousepad will no longer work. I tried various
ways to configure the kernel, none did the trick... I still have no
problems with 2.0.36. Any ideas?
Stefan.
--
=========================================================================
Stefan Mueller-Wilken, Research Assistant, University of Hamburg, Germany
[EMAIL PROTECTED] vsys-www.informatik.uni-hamburg.de
fon: +49-40-42883-2327 fax: +49-40-42883-2328 mobile: +49-177-5538955
=========================================================================
------------------------------
From: "Jose M. Urena" <[EMAIL PROTECTED]>
Subject: Re: [Q] Dual CPU or double speed single ? Help me to chose please.
Date: Thu, 20 May 1999 13:53:37 -0400
do remember that the celerons leave the intel factories with the SMP feature
hardwired disabled .
they will not work with a second celeron, unless you or your motherboard can
rewire the feature back on.
just putting 2 or more celerons in an multi-cpu board is not guarantee to
activate any of the additional cpus.
there are slot-1 adapters that have jumpers to re-enable SMP, but you have to
make sure you get one of those when you buy your celeron.
bryan wrote:
> if you build in parallel (the kernel is the best example I know of)
> then you will benefit from multiple cpu's. I believe in it - I built
> 3 dual-celeron systems and love them! ;-)
>
> some makefiles aren't so SMP friendly. you may have to do a "make -k"
> a few times until all things are built.
>
> if you work on different projects (or have 2 people accessing your
> box) the dual cpu is a good system.
>
> for true single-user stuff, go with a single cpu.
>
> for daemons, cron jobs, lots of bg processes, go dual.
>
> the dual celeron (300a o/c to 450) is still the best deal out there.
> even if you have to use slotkets to achieve it.
>
> Frederic A. Martinelli <[EMAIL PROTECTED]> wrote:
> : Hello,
>
> : I'm currently wandering about upgrading an old P133, not for speed,
> : because that CPU is quite good for developing apps as i do, but
> : simply because i'll soon (within the next month or so) need to free
> : one of the serial port to plug a Wacom tablet in it (i'll move the
> : mouse/keyboard to PS/2 ports that newer motherboards have). But i just
> : hate to spend money on a new hardware without filling up the old
> : hacker modo : "never upgrade for at least twice the speed".
>
> : So i thing my possibilities are
> : - an Intel compatible at 400+ Mhz
> : - an alpha 21164PC at 400+ Mhz
>
> : I'm i right so far ?
>
> : Then, would it be faster to:
> : - run a single 21164 alpha cpu (around 400 Mhz, -maybe- i can get a 533)
> : - OR run a single K6-3 450-500
> : - OR run a dual celeron 400
> : ???
>
> : Knowing that i can get those 3 stuff for almost the same price
> : (only 100$ more for the alpha - a used one).
>
> : As a more generic question, i would like to know if Dual 300 Mhz
> : would behave (speed) the same as Mono 600 Mhz for example.
>
> : Here is what i understand, and let me please know if i'm wrong.
> : The dual 300 will run 2 apps at 300 (useful for background rendering
> : for example) and the 600 will run only 1 app but at 600 (thus the app
> : finish sooner and one can go to the other app !! argh !). Is there
> : really no difference ?!?
>
> : IRL, how does all that behave ? And the 1cent question: what is the
> : most interesting under Linux for me ????
> : (most of my day i compile, draw in Gimp and later i'll render about
> : 20% of my time)
> : My usual desktop session is 1 user (me :) ) enlightenment, Gimp with
> : about 5-15 drawing loaded, Xemacs, Knews, 1-3 xiterm/eterm and the
> : program i'm on, from time to time Netscape or Lynx is poped up and
> : later Blender will be next to Gimp... So what configuration would give
> : me the most 'smooth' feeling ???
>
> : Thanks for your help, i thing that i've read too many things and
> : now i'm lost ! :/
>
> : Fred.
> : --
> : mailto:[EMAIL PROTECTED]
>
> --
> Bryan
------------------------------
From: "Jose M. Urena" <[EMAIL PROTECTED]>
Subject: Re: SB PCI64V (Legacy driver)
Date: Thu, 20 May 1999 14:00:05 -0400
the PCI64 drivers are not part of linux 2.0.36, you need the latest kernel
2.2.x
the SB PCI64 does not use SB16 nor sb pro drivers
you need to use the ensoniq 1790 or 1791 drivers
there is no need to set IRQ/IO/DMA
midi is not supported by the driver, because the card does not have hardware
midi
you need to used software emulated midi
Catastini Giuseppe wrote:
> Hello,
> I have just installed Debian 2.1, kernel 2.0.36. I was not able to
> correctly configure my SB PCI64V (Legacy driver).
> I tried to recompile the kernel using the Sound-Blaster Pro
> driver (under Win98 I found the Port, DMA and IRQ fro the emulation of
> a SB Pro).
> The driver is linked correctly to the kernel, but the card is not
> recognised (there are no lines between Sound initialization start and Sound
> init. complete), in sndstat the driver is between "( )".
>
> I have tried with the isapnptool but it is unable to recognise the card...
>
> Does anyone know if this card works with OSSfree (I can try to install the
> 2.2.5 kernel)?
>
> Bye,
> Giuseppe
------------------------------
Date: Thu, 20 May 1999 22:56:04 -0700
From: elmer smeckert <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup,linux.redhat
Subject: Re: Help with modem setup
Sure. Put it inside the computer and screq it in.
If I were to tell you what to do I woud say...
1) If the modem has jumpers, set it for com2 IRQ 3.
If it doesn't, then you will need to use a plug and play
program. Windows 95 has one.
2) Go in the computer BIOS and find COM2 and change it to DISABLED.
(No, it is a different com2, the modem has its own private one.)
3) Reboot into Linux then log in as root and type
"ln -s /dev/cua1 /dev/modem"
Ok, your modem works. type 'minicom' and you will see it talk to
the modem and the modem will say "OK" back.
(Control-A then X to get out.)
You'll be back, and I will berate you some more, or else you will
take the time to follow the instructions in the
ISP_Hookup.HOWTO and you will get connected with no problem.
My pleasure;
Stephen Workman wrote:
>
> Could someone please tell me what to do to set up my modem.
>
> I've got Redhat 5.1, and an internal 56K modem, but I can't get access to
> it. The modem FAQ was of little use, and I don't know what to configure, or
> what to compile into the kernel to get it going.
>
> Please help!
>
> Stephen.
--
Y los otros animales de la granja tambien se reian de ella.
La vaca que decia "Oink" se sentia muy triste.
------------------------------
From: "Prasanth Kumar" <[EMAIL PROTECTED]>
Subject: Re: Is emachine's 400i good for Linux
Date: Fri, 21 May 1999 04:28:04 GMT
Dean Pan <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> I consider buying a emachine's 400i (intel celeron 400MHz) to run linux.
> It seems to be a good deal. I plan to add a NIC and some more RAM on it.
> I am wondering if its integrated SVGA and sound card works under linux.
> Anyone has a successful experience on emachine? Thanks!
>
I tried out an emachine system at a local computer shop and found the video
horrendiously slow when doing a full window drag under Windows. Heck,
even a $30 noname card I have on one of my slower Pentium 166 ran faster!
------------------------------
From: Allen Ahoffman <[EMAIL PROTECTED]>
Subject: Re: Building a small linux box
Date: 20 May 1999 14:12:06 GMT
**Nick Brown <[EMAIL PROTECTED]> wrote:
You can:
use the PCChips m741lmr motherboard.
onboard video, sound, network, and modem (win modem only).
1 isa and 1 pci slot, $82 on pricewatch.
use a Inwin Micro ATx case w/ 145W powersupply $50 500PU model number.
use a 366 celeron cip if you like $82.
Use 128MB RAM, $120
Use a 10GB IDE hard drive $145
use a 40X cdrom, $39.
$426.
use less RAM, or Pentium II 233 or soemthing save money.
network drivers for m741lmr board are on CD with board.
> Go down to Cash Convertors (no, seriously) and check out what they
> have. I get second-hand mobo's, video cards, CR drives, etc there.
> Warranty ranges from 48 hours (well, you can get it home and check it
> isn't DOA) to a year. Last week I got an old-style Pentium mobo for
> $15. Add a Winchip ($27 from krex.com) and you're in business at 200
> MHz. A 2 MB video board is about $20. A 2 GB IDE disk is about $40.
> Michael Mellinger wrote:
> >
> > I want to build a Linux box that fits in a small case that I can stick
> > out of the way, stuck in a corner somewhere. It will be left on 24x7,
> > so I like it to be quiet and consume as little power as possible. It
> > will contain a CD-ROM drive and 1 large EIDE drive. A motherboard
> > with onboard video and Ethernet would be desirable. Finally, I'd like
> > to keep the price to around $400. Any recommendations?
> --
> ---------------------------------------------------------------
> Nick Brown, Strasbourg, France (Nick(dot)Brown(at)coe(dot)int)
> Protect yourself against Word 95/97 viruses, free - check out
> http://www.geocities.com/NapaValley/Vineyard/1446/atlas-t.html
> ---------------------------------------------------------------
--
=======================================================================
| Announce communications Inc. | voice: 301-731-5786 |
| 5004 West Lanham Dr. | email: [EMAIL PROTECTED] |
| Hyattsville, MD 20784 | http: www.announce.com |
======================================================================
------------------------------
Date: Thu, 20 May 1999 22:09:04 -0700
From: elmer smeckert <[EMAIL PROTECTED]>
Subject: Re: How to SILENCE a MODEM?
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This reminds me of that joke about the pilot, lost in the fog,
low on fuel, flys close to an office building, writes a sign
that says "Where are we?"
The guys in the office hold up a sign that says:
"You're in a plane!"
The pilot turns and makes a beeline, runs out of gas and coasts into the
runway.
The amazed passenger asks "How did you do that?"
The pilot says " Their answer, while right, was completely useless. Because
of that I knew that this was the Microsoft building in Redmond, so I found it
on
the map and went to the airport."
HOW YOU MAKE THE SETTING DEPENDS ON HOW YOU CONNECT
If you use Chat, Look in your chatscript, find where they say
"ATZ" and wait for "OK"
After the "OK" send "ATM0L0" and wait for another OK.
If you are using one of the X tools, there will be a place to put
"EXTRA SETTINGS"
and you will put M0L0 in there instead.
Best wishes.
=====================================================
Denis wrote:
> Does anybody know how to control the loudness of the modem's sound when it's
> connecting to ISP? (i have Internal US Robotics 56K).
> Since I do that in Windows, I thought maybe I can do it in Linux, too.
>
> Thanks.
> Denis
--
Y los otros animales de la granja tambien se reian de ella.
La vaca que decia "Oink" se sentia muy triste.
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<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
This reminds me of that joke about the pilot, lost in the fog,
<br>low on fuel, flys close to an office building, writes a sign
<br>that says "Where are we?"
<p>The guys in the office hold up a sign that says:
<br> "You're in a plane!"
<p>The pilot turns and makes a beeline, runs out of gas and coasts into
the runway.
<p>The amazed passenger asks "How did you do that?"
<p>The pilot says " Their answer, while right, was completely useless.
Because
<br>of that I knew that this was the Microsoft building in Redmond, so
I found it on
<br>the map and went to the airport."
<p>HOW YOU MAKE THE SETTING DEPENDS
ON HOW YOU CONNECT
<br>If you use Chat, Look in your chatscript, find where they say
<br>"ATZ" and wait for "OK"
<br>After the "OK" send "ATM0L0" and wait for another OK.
<p>If you are using one of the X tools, there will be a place to put
"EXTRA SETTINGS"
<br>and you will put M0L0 in there instead.
<p>Best wishes.
<br>=====================================================
<br>Denis wrote:
<blockquote TYPE=CITE>Does anybody know how to control the loudness of
the modem's sound when it's
<br>connecting to ISP? (i have Internal US Robotics 56K).
<br>Since I do that in Windows, I thought maybe I can do it in Linux, too.
<p>Thanks.
<br>Denis</blockquote>
<pre>--
Y los otros animales de la granja tambien se reian de ella.
La vaca que decia "Oink" se sentia muy triste.</pre>
</html>
==============FF1AD91C3EF35EA78720C14A==
------------------------------
Date: Thu, 20 May 1999 22:47:13 -0700
From: elmer smeckert <[EMAIL PROTECTED]>
Subject: Re: modem trouble = IRQ Conflict.
I Have a solution, but first I want to digress...
Once upon a time, not so very long ago, there were the builders.
They spake unto each other and they said:
" Let there be two serial ports. One for the printer,
and one for the 300 baud modem."
And so it came to pass. And it was good.
As time went on, they found that sometimes they wanted more than
one printer, and printers don't talk back much, so they added more
serial ports but made them share IRQs.
These were the dark ages when things went slow and the
mouse was an organisim instead of hardware.
As the machinery grew and the resources grew tight, we began to have
what the technical support workd calls "Issues"
You have an issue. You have several choices. Which ever you choose
you must take the responsibility for your actions. If your computer eats
your cat or any other dire consequences, it's your problem.
Ok, having indemnified myself, lets proceed.
Choice 1
Disable COM 2 in your computer. On new systems this is in the bios
under onboard peripherals. On older systems you have to change jumpers
on the IDE controler or the Serial interface board. Read your Fine
Manual.
Having turned off the pice of harware that uses the memory space and
IRQ
for com2 (02F8-02FAh and IRQ3) you are free to replace it with your own
hardware (the modem). You'll have to change the symbolic link for
/dev/modem.
The conflict is resolved. Share and enjoy.
Choice 2 Connect your mouse to COM2 (cua1) and connect NOTHING to cua0.
As lond as there is no device attached to CUA0, there will be no data
and the
interrupt handler will look elsewhere for the interruption. You'll have
to change
the symbolic link for /dev/mouse.
The conflict is resolved. Share and enjoy.
Choice 3
Now things get hairy. The modem on Com3 can use IRQ5 if and only if
the
hardware supports it, and IRQ5 is free. Usually the sound card uses
IRQ 5, but can be convinced to use IRQ 7 9 or 10. I would stay away
from this
path, but it is there in a pinch.
Dharmesh Patel wrote:
> Hi,
> I'm a beginer in Linux.. I am using KDE .I'm trying to go online
> via the KPPP setup. The problem is that Quering the modem only gives me
> either "Modem not found" or "Modem busy" I have tried all the ports(
> although I'm using com2 ie.ttyS1). Also I face a similar problem on NT
> which of course detects the modem but has a conflict with the IRQ of the
>
> mouse. I really doubt that I have a hardware proble as all else works
> fine under Win98. I really have no one else to ask. I hope you solve
> this problem of mine.I'm using:
> PII-266, 64 MB RAM, 10.5GB seagate IDE drive and an Intel BX
> motherboard.
> Thanking you ,
> Dharmesh
> <[EMAIL PROTECTED]>
--
Y los otros animales de la granja tambien se reian de ella.
La vaca que decia "Oink" se sentia muy triste.
------------------------------
From: Dorin-Ioan Marinca <[EMAIL PROTECTED]>
Crossposted-To: comp.realtime,comp.os.linux.development.system,comp.hardware
Subject: accurate timer - HELP!
Date: Thu, 20 May 1999 20:03:39 +0200
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Hi!
Please help me in the following problem:
How can I count the time (*less than 1us* - even x*10ns) very accurate
on Linux? I search something not depended on hardware or, if not,
something Pentium specific.
(gettimeofday() return *realy* microseconds or only something rounded
at n*10ms?)
(A linked question: How can I calculate the exact clock frequency for an
Pentium Processor?)
Thanks in advance for any help (docs / ideas / www pointer / ...),
D.I.M.
--
Dorin-Ioan MARINCA
email: [EMAIL PROTECTED]
tel: 00 33 - (0)4 72 15 56 81
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<HTML>
Hi!
<P>Please help me in the following problem:
<P>How can I count the time (*less than 1us* - even x*10ns) very accurate
on Linux? I search something not depended on hardware or, if not, something
Pentium specific.
<P>(gettimeofday() return *realy* microseconds or only something
rounded at n*10ms?)
<P>(A linked question: How can I calculate the exact clock frequency for
an Pentium Processor?)
<P>Thanks in advance for any help (docs / ideas / www pointer / ...),
<BR>D.I.M.
<PRE>--
Dorin-Ioan MARINCA
email: [EMAIL PROTECTED]
tel: 00 33 - (0)4 72 15 56 81</PRE>
</HTML>
==============08642C41986E51AA3DB08169==
------------------------------
From: Lyn A Headley <[EMAIL PROTECTED]>
Subject: how's this for a cheap webserver?
Date: Thu, 20 May 1999 18:19:38 GMT
hi,
I'm putting together an experimental webserver on a shoestring
budget. I just want to be sure it will work with linux (and solaris
for intel, if anyone has comments about that). This is my first time
building a machine from components, so I'm probably remarkably
clueless about some things. I have indicated my insecurities beneath
each component. I'd be much obliged if folks would comment on any and
all aspects of this system.
thanks,
-Lyn Headley
vendor -- http://www.axiontech.com
motherboard: $95
ASUS:P5A ALI 512K 100MHZ 5PCI 2ISA 3DIMM AGP ATX
-- ALI chipset OK?
-- will it take a celeron?
memory: $145
HYUNDAI:128MB SDRAM HIGH DENSITY 16 CHIPS UNBUFFER
hard drive: ($140)
FUJITSU:MPA3084AT 8.4GB 10MS UDMA 128KB
-- do I need a controller?
cpu ($50)
INTEL:CELERON-300A MMX 128KB CACHE ON DIE OEM
fan/heat sink ($15)
COOLER MASTER:CELERON-FAN BALL BEARING FAN & HEAT SINK
-- does it matter what I get?
case ($37)
IMAGE:ATX MEDIUM TOWER 3-5.25" 2-3.5" 250 WATTS 1 HIDDEN 3.5" UL
LISTED ATX 2.01 COMPLIANT
-- will everything fit in here?
ethernet card ($45)
INTEL:PRO100 100MBPS ETHER EXPRESS PRO 100+ PCI
CD-ROM ($40)
SAMSUNG:SCR-3232 32X IDE INTERNAL CD-ROM 80MS 128K
keyboard ($15)
KEYTRONIC:REGPS2 WIN 95 KEYBOARD W/ PS/2 CONNECTOR SOFT TOUCH
not getting a monitor
total cost: $582
------------------------------
From: [EMAIL PROTECTED]
Subject: Re: Dual SCSI Adapter device assignment help?
Date: 21 May 1999 06:08:05 GMT
Reply-To: [EMAIL PROTECTED]
[EMAIL PROTECTED] wrote in comp.os.linux.hardware:
jpc>I have two SCSI Adapters in my Dell 410 Wkstn. One is an onboard
jpc>aic7890/7880 and the other is an Adaptect 2940UW. I'd like to be able
jpc>to reverse the sequence in which the system assigns device names to
jpc>these two adapters. As is, my hardisks are being assigned /dev/sdc and
jpc>/dev/sdd while my removable media scsi's are /dev/sda and /dev/sdb.
jpc>I would prefer to leave the high speed disks on the high speed adapter.
jpc>I'd like to get aic7890/aic7880 detected as /dev/scsi0 instead of
jpc>/dev/scsi1. I believe this would put my hard drives back in the BIOS
jpc>detection range (first two drives) so that LILO can be used to boot
jpc>partitions on them.
jpc>Can anyone point me to a method to switch the adapter detection?
I'm sure there are more elegant solutions, but what if:
You switched the boot bios off on the 2940UW. This should remove the card from boot
consideration.
Adaptec's knowledge base has an article about the order in which scsi adapters get
scanned,
and the best advise they offer is to move cards around in different slots (not an
option if
one controller is on the mother board).
Some motherboards do have primary ans secondary channel PCI slots. Maybe moving
2940UW to a
secondary channel PCI slot will help.
------------------------------
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