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1 core keeps shutting down

post #1 of 12
Thread Starter 
AMD x2 3800+ s939 Manchester
It's happened twice now; evrything running AOK and SMP folding overnight!
I get up and the computer is shut down.
I restart and no errors or problems-- everything appears normal, then when I try and run SMP again I get "SMP designed for multicore computers" (Or similar) then
I check cpuid and see
"1 core 1 thread"
I check with task manager --sure enough-- Only 1 core active!
Everest, Sandra-- Same thing -- 1 core active.
The first time it did this I tried everything I could think of; No joy!
The only thing that fixed it was a complete reformat and re-install.
What gives?
Thanks for any hints- I'm stumped (doesn't happen too often )
Cheers
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Royally MIIFed
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post #2 of 12
would a bsod do damage to ur HAL (or whatever keeps track of ur devices, cant remember exactly)? and at first i figured u cooked 1/2 ur processor, but a format fixed it... im as stumped as u lol
    
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post #3 of 12
Thread Starter 
Quote:
Originally Posted by xviosx View Post
would a bsod do damage to ur HAL (or whatever keeps track of ur devices, cant remember exactly)? and at first i figured u cooked 1/2 ur processor, but a format fixed it... im as stumped as u lol
Never got a BSOD either time it happened (Checked event log for errors) just get up and the system is off (left on- folding overnight) which happens occasionaly -NBD; boots up fine, everything seems OK---> 1 core only.
Royally MIIFed
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Royally MIIFed
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post #4 of 12
really weird.. have you installed amd's dual core optimizer?
Potenze
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Potenze
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post #5 of 12
Thread Starter 
Quote:
Originally Posted by xXkeyboardkowboyXx View Post
really weird.. have you installed amd's dual core optimizer?
yep, been there, done that. (years ago, redid it first time it did this, now done as SOP for re-install)
??
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Royally MIIFed
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post #6 of 12
Quote:
Originally Posted by SpcCdr View Post
Never got a BSOD either time it happened (Checked event log for errors) just get up and the system is off (left on- folding overnight) which happens occasionaly -NBD; boots up fine, everything seems OK---> 1 core only.

Can you find any trace in your logs? check you audit logs as well. If it just shuts off like that, I would say it could be temps or your mobo. To eliminate XP as the suspect, grab Ubuntu, burn the .iso to a CD, boot on the CD... you don't have to install it, but I would ; anyway, run as much crap as you can figure out how to if you are not familar with Linux (it is not that hard to pick up) and let run for a couple hours. If you fail, it is not XP. Alternatively or in addition, you should run Prime95's stress-blend test for about ~ 5 hours and see what happens; should run Orthos as well.... also probably not a bad idea to eliminate your RAM, so run memtest while you're at it. You got your work cut out to do, try to have fun
post #7 of 12
Thread Starter 
thanks for your help R3ap3R, I've always been rock solid stable, though system is gettin pretty old, before I repeat all of the above tests; I should try and get the other core back up -right? then test for stability.
HOW to revive dead core?
Any reason why only a clean install recovers the core?
1) Audit logs only show DCOM error CLSID for local permission error and application error trying to start SMP
2)Got Ubuntu on VM, but still need to get core up and running again first!
-- Hints for core "CPR"
Royally MIIFed
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Royally MIIFed
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post #8 of 12
RUN: MSCONFIG > boot tab > advanced > set /numproc to 2

-or- if you know what you are doing, just add "/numproc 2" to your boot.ini

See if that helps.

Maybe it is some power saving feature that you left on in BIOS or in Windows.
post #9 of 12
Thread Starter 

No option for 2 cores?
and "use modified Boot.ini" radio button is grayed-out
No powersavings core options used.
Royally MIIFed
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Royally MIIFed
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post #10 of 12
Task manager also only sees one core. Something seems wrong.... try seeing how many cores are seen in Linux.
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