- Joined
- May 16, 2003
- Location
- St. Louis, MO
I own one of the earlier IC7's that was released in the summer of last year. I'm having a strange stability problem when overclocking that makes me think it's the motherboard. I know there are mod's you can do to stablize this board, but I just would like to know if that is the problem I'm experiencing. I have 2x256 OCZ PC4200EL with SPD 2.5-4-4-7 timings. I have a good overclocking 2.8C (can't remember the stepping off-hand. Bought it earlier this year from exCaliburPC where they actually advertised the stepping on it). Both the CPU and MCH are watercooled with an Asetek WaterChill system. Here is a the problem I'm having:
I can overclock the CPU easily to 3.5Ghz with a 250FSB and it will pass 2xprime95 all night with both running the small FFT's. This puts 100% utilization on the hyperthreaded CPU and keeps the operation running in the L2 cache. I was even able to keep the VCore at 1.6V.
I can also pass multiple/many passes of memtest86 at 250FSB with no errors.
However, the 2xprime95 will not pass the large FFT's test which uses a lot of memory even at a VCore of 1.65V.
This one really has me stumped. I really think it's gotta be the MCH that's causing the problem here. Any insight or suggestions would really be appreciated. Thanks.
I can overclock the CPU easily to 3.5Ghz with a 250FSB and it will pass 2xprime95 all night with both running the small FFT's. This puts 100% utilization on the hyperthreaded CPU and keeps the operation running in the L2 cache. I was even able to keep the VCore at 1.6V.
I can also pass multiple/many passes of memtest86 at 250FSB with no errors.
However, the 2xprime95 will not pass the large FFT's test which uses a lot of memory even at a VCore of 1.65V.
This one really has me stumped. I really think it's gotta be the MCH that's causing the problem here. Any insight or suggestions would really be appreciated. Thanks.