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KR7a-raid UNSTABLE after XP1800+ upgade

T

tone

Junior Member
My kr7a-raid board functioned flawlessly with a 1ghz chip overclocked to 1488mhz. I just installed a xp1800+(1.53mhz), and cannot run anything processor intensive. After many crashes, I am now getting fatal exception errors. All bios settings to the best of my knowledge are correct. My guess is something is getting pushed harder with the multiplier settings for the xp1800, or possibly a bad chip. I know better than to jump at the bad chip idea, but i'm still looking for a solution in my bios. Memory checks out ok. chip passes all tests, and most other simple things have been checked. Any ideas.......please jump in.

My System..........
XP1800+ AMD
Corsair PC2100 (256m DDR)
Abit KR7a-raid
W.D. "BB" series drives x2
Abit Siluro GF4MX card (64m DDR)
Usual other stuff

I'm now back to my 1ghz chip to operate, and all Norton tests, and burn-in tests show all componants good. ANY HELP OUT THERE ????

🙁
 
Could be a BIOS cpu-recognition problem. On the 'SoftMenu III Setup' page, set 'CPU Operating Speed' to 'User Define', set correct multiplier and FSB as you wish.

Corsair DDRAM is great stuff, but some KR7A-users report problems with Tras of 5T in dram timings, including HD problems. Mine runs fine with 5T Tras, but I have XMS2400 DDRAM.

Hope this helps!
 
Thanks Dunkster, my bios rev is "6n", and recognizes my chip properly, but I will try user defined settings. My tras setting in dram is at 6t, so I will play with that also, and report back.

Peter, could you give me some insight on power issues?? My power supply is a fairly new "3DCOOL" 400watt. I have read a little on larger systems working a power supply, but have discarded it due to the fact that everything is fine with my current cpu(overclocked 1ghz@1488mhz).

Thanks again.....
 
If you find no satisfaction here, try posting your problem at the 'Abit Motherboards' forum at amdmb.com.

Hope this helps!
 
UPDATE.........Thanks all. I RMA'd the chip for another one, and...."lo and behold" it was a bad processor. My first defective AMD chip.
 
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