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SubjectRE: Dual athlon XP 1800 problems
Don't know about the kernel issues your experiencing but I have that
board and the BIOS does seem a bit flaky - I can confirm however that
the temperature monitoring as you noticed doesn't give sane readings
until you hit update for the first time.

I have Dual Athlon MP 1.2Ghz, 768MB crucial ECC RAM and kernel 2.4.19
optimized for athlonmp using gentoo patches and its solid as a rock.
The only problems I've had were full lock-ups when compiling but I
traced that to a faulty dimm module.


> -----Original Message-----
> From: [mailto:linux-kernel-
>] On Behalf Of David Crooke
> Sent: 15 November 2002 10:32
> To:
> Subject: Re: Dual athlon XP 1800 problems
> Not sure if this is an apposite list, but found this thread ....
> apologise in advance.
> I just built a similar dual AMD machine tonight and it also has
> issues....... never used any AMD stuff before so venturing into new
> Tyan S2460 - motherboard sticker says "C", BIOS rev 1.03
> 2 x Athlon MP 2000+ (1666 MHz) - retail packaged, AMD clip-on
> and fans
> 1Gb PC2100 ECC registered memory (2 x 512Mb DIMMs, Kingston branded)
> Red Hat 7.2 but downloaded and built 2.4.19, configured for SMP,
> target
> Single IDE drives, no RAID or stuff like that
> Tekram DC390 (8 bit SCSI)
> 3Com Cyclone 3C905
> D-Link DE-590TX (??) - uses ne2k-pci driver, has worked since early
> 2.0.x and probably before
> ATI Rage 3D Pro (AGP 2x)
> Big Antec case with a ton of fans :-)
> 1. When I first put it together, it would consistenly run OK for a
> period of 4-5 minutes, quite precisely - no less than 4, no more than
> and then just lock up HARD - no Ctrl-Alt-Del, no kernel panics,
> Once or twice it seemed like it stuttered - as if the load was like
> 10.00 or higher, the keystroke echo would take 2-3 seconds.
> 2. First try - I pulled the Tekram (it's ancient and has bootable
> - no difference
> 3. Tried some BIOS settings (e.g. SMP 1.1 mode) - it DOES NOT like
> any BIOS changes AT ALL (even seemingly harmless ones like Num Lock)
> appear to mess it up totally, and LILO hangs at "LI" when trying to
> start. Restored factory defaults.
> 4. Then I noticed that the CPU1 heatsink was quite warm (maybe 70C
> feeling around the thick bit of the aluminium) whereas CPU0 heatsink
> just above room temp.
> 5. Checking the Winbond monitoring in the BIOS** menu, it comes up
> showing both CPU's at 77C, then as you hit keys it takes proper
> readings, and claims both CPUs within 1-2 degrees of each other (??).
> seems accurate on fan speeds though. Both fans running pretty fast,
> 5500-6200 RPM.
> 6. Pulled CPU1, messed around some - same behaviour, lock ups after
> mins
> 7. Brought it up to single user mode console, to see if it was video
> card etc. - did some testing of just letting it mostly idle (while
> - uptime - sleep 1 - etc.) and locked up 1-2 more times.
> 8. Rebooted again, now it's up and running and appears stable (still 1
> CPU), so I took it up to full init 5 and it stayed up (and so I'm
> writing this email :-) Once or twice seemed to stall again for 1-2
> seconds (interrupt storm ???) but recovered.
> Anyone have suggestions? I'm thinking to leave it running and see if
> stays up. Smells of a hardware issue, but also the BIOS seems a bit
> funny (there is a message in the Help which says "this setting for
> only - remove for production" !!)
> Other observation, possibly unrelated: the unpacking of the kernel
> very slow for an otherwise pretty quick machine - the dots when it
> "Loading xxx..." tick at about 1 per second, much like a laptop with
> PC-66 memory, compared with 4-5 per second for the Pentium III
> 800/PC-133 motherboard I just hauled out.
> ** The temperature sensor driver stuff didn't seem to come with the
> kernel ??
> -
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