"ASUS P5Q Deluxe discussion".

[Tulû]

Tulu - run your ram slower, to take it out of the equation when overclocking your cpu. Doing both at once is bound to cause issues and confuse you, as you can't pin down the offending piece of hardware when there is instability.

Find max cpu clock, then adjust the ram to suit, as you will gain more from running cpu at max and having ram slower than having flying ram and a slower cpu.

My advice was adressed to xTKxhom3r but should apply to you regarding the
stability testing. I may have been wrong on the voltage subject as it depends
on the processor used. My 45nm Q9450 is very sensitive but I can't say anything about your proc.

Leeghoofd please help us on the voltage subject regarding the q6600 and e8400 as I answered before I thought about it.

Edit.
PS. Reading through this thread would give surely the answer to most problems.
1+ on the Cryptik's suggestion BTW. I had my ram on AUTO or ~800-900mhz when trying to find max CPU freq.

Okey,
i lowered my rams to 851MHz FSB : DRAM 1:1 now.
I ran prime , i got error again on core0 just 5 mins. after this time.
I just want to know that , i 've ran small FFT's 3 hours and 5 rounds of Intel burn test it was stable ; i wonder that if passes smallFFTs and IBT ,couldn't i say cpu speed stable ?

I've ran as 851MHz @ 5-5-5-18 trfc 55 @ 2.1 V

Edit: Now lowered FSB to 413MHz ( 413 x 8 ) and set rams to 826MHz @ 5-5-5-18 trfc 55 @2.1 V

Btw kiikkuja, you've said "Max values for PLL and fsb termination voltage are 1.60 and 1.38." but my FSB Term is 1.48 now and PLL is 1.58 .
This FSB Term. can cause a problem ?