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Date:      Fri, 28 Dec 2001 13:01:41 -0800
From:      Kent Stewart <kstewart@owt.com>
To:        Munish Chopra <mchopra@engmail.uwaterloo.ca>
Cc:        FreeBSD Hackers <hackers@FreeBSD.ORG>
Subject:   Re: Does FreeBSD have a problem with some AMD processors?
Message-ID:  <3C2CDDB5.40804@owt.com>
References:  <20011228181009.F95692@monorchid.lemis.com> <20011228205207.GA58913@daemon.chronias.ninth-circle.org>

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Munish Chopra wrote:

> On Fri, Dec 28, 2001 at 06:10:09PM +1030, Greg Lehey wrote:
> 
>>I've been using AMD processors almost exclusively in my main work
>>machines for over 4 years, and I've been very happy with them.  I'm
>>currently running a K6/233, a K6/333, an Athlon 750, a Duron 850 and
>>an Athlon XP 1700.  Last August, though, I bought a machine which gave
>>me a lot of trouble, the Duron 850 mentioned above.  I found that it
>>would freeze for no apparent reason.  I established that it wasn't the
>>memory by taking the memory of another machine and running it like
>>that; it made no difference.  I ended up also changing the motherboard
>>and the processor, but the hangs continued.   I could expect a hang
>>within 8 hours when doing 'make release'


>>
>>
> 
> I'm running an AMD Thunderbird 1200 on an ECS-K7S5A (SiS 735 chipset),
> with 256 MB DDR SDRAM installed. I experience random reboots with that
> system, though I have had a few people on -questions tell me to make
> sure my cards are properly seated as the ECS boards seem to be very
> picky about that (I still don't believe that is the reason). I'm going
> to check out the RAM later today, but I'm not really sure what is wrong
> with that machine. 
> 
> My first two AMD machines, a K6-2 350 on as ASUS-P5A and a Duron 800 on
> an ASUS-A7V will just freeze after booting and showing the login prompt
> (this happens around once every ten boots or so). No problmes under
> Windows. A friend of mine running the same motherboard with WinXP also
> experiences random reboots though, so I'm hoping a BIOS update might
> work some magic, though the fixes list doesn't hint at this. Most other
> people I've talked to consider their ECS boards rock-solid. 
>  
> 
>>Just for the fun of it, I tried running Linux on it.  I've been
>>
> 
> Didn't do that, wouldn't know if the problems also exist under Linux.
> 
> Anyway, that was my experience. The ATA100 controller on the board is
> only recognized as an ATA33 controller, but I'll be sending Soeren
> whatever he needs shortly in hope of fixing that. 


He already has code to recognize the SiS-735 chipset and many more SiS 
versions in -current. They just haven't been MFC'ed. Look for 55131039 
in ata-pci.c and ata-dma.c.

Kent


> 
> If anyone has even a hint as to what else could be causing these
> reboots, I'd very much appreciate it (-questions didn't really come up
> with much).
> 
> And before I forget, the machine is running 4.4-STABLE.
> 
> 


-- 
Kent Stewart
Richland, WA

mailto:kbstew99@hotmail.com
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