Overclock mystery (Q6700)

[NismoZX]

I have been trying to get my PC at a decent OC state for a few weeks now. I read most of the forums and feel i have a general understanding of what I am doing. With that said, during my trial and error bumping I have hit a snag. I had my q6700 running at 400mhz x8 to have a 1:1 ratio to ram at 3.4ghz. i had my voltage at 1.4 and everything ran smooth for the most part, untill during a prime test i got an error and my temps hit 70c at full load, so i decided to back her down a little. When i went to a 333 x10 to get 3.33ghz and dropped voltage to 1.38. my ram was still set in bios to run 1:1 from gigabytes 2.4 ram multiplier. Now when i run cpuid it read stock cpu FSB at 266x10 but reads my ram at 320fsb at a 5:6 ratio. Does anyone know what could be causing this? I have tried multiple differnet OC settings in Bios and can not cure this issue. It will show the current multiplier i have set in bios whether its 10 or 8 but the CPU FSB still reads 266. for reference i have a
System:
gigabyte ga-p35c-ds3r mobo
Intel Q6700 2.66
4x 1GB OCZ DDR2 OCZ ram pc2 6400 2- sli ready 2- Gold
600W Thermaltake PSU
EVGA 9800GTX+ GPU
more fans then is probably needed
2x DVDrw drive
320 GB HD @7200

 

[redduc900]

Either reset CMOS or load optimized defaults and start over.

 

[NismoZX]

Thanks, I will try that tonight. I was going to pull the CMOS battery before but if loading the optimal settings does the trick that would be way easier.

 

[NismoZX]

Cleared the CMOS and now have it running at 333fsb at 10x. I have set the RAM Settings in Bios to 2.4 to reach the desired 1:1 ratio at 800mhz but when CPUiD is running it has it reading a 5:6 ratio. Reaading a ram fsb of 399. When I run prime95 worker 3 fails almost immediately, should I continue prime even with 1 core not taking a load? And what should my next course of action be?

 

[wagex]

399mhz on ram is the same as ddr2-800 its double data rate so when your ram is reading 400 in cpuz with a 1-1 ratio its running the correct speeds

 

[redduc900]

@ Nismo... You're confusing the FSB : DRAM ratios. A 1:1 FSB : DRAM ratio at a FSB of 333MHz = DDR2-667, while the same divider at a FSB of 400MHz = DDR2-800. The BIOS reads the SPD of the modules and auto-sets the FSB : DRAM ratio at 5:6 (2.4 system memory multiplier) on the 333 "B" strap when at a FSB of 333MHz, in order to run the modules at their rated DDR2-800 (333 x 6 / 5 x 2 = DDR2-800). And there's no reason to continue running Prime once a worker has stopped. Boot to Memtest86+ installed to a thumb drive, and check the RAM for stability at DDR2-800 w/ the rated timings and voltage manually set.

 

[NismoZX]

Thanks for the responses, I'm a little confused though what I am doing incorrectly. Are you saying I should leave the bios on auto for the ram to run 1:1 even on a 333fsb and not set the 2.4 multiplier?
Also I am running 2 different sets of ram, as noted in the OP, they are rated different as well one is 4-4-4-15 at 2.1 I believe and the other is 5-5-5-15 at 1.9, is there a special formula for setting them?

 

[redduc900]

No, leave the divider at 5:6 (2.4 DRAM multiplier) = DDR2-800 at a FSB of 333MHz. And remove one of the 2 x 1GB kits, and adjust the timings and voltage to match those of the remaining modules. Then boot to Memtest86+ installed to a thumb drive.

 

[NismoZX]

Set bios to 400mhz x8 at 1.4 volts, bumped ram voltage a tad and Passed memtest and still running strong on prime95 after an hour so far, max temp is 69c. I was looking at the system properties and it reads q6700 @2.66 4.00mhz... Is it reading the stock multiplier with my modified FSB set? Is this common?