Q6600 @ 3.2ghz problem


Jun 18, 2008
Hello guys, Nice to meet you all~
Before I go into it, i have looked at all other threads, and I can't find any settings, that help me out, I read over the Overclocking guides in the forums, that's where I learned how to do it so far, but I cant get the PC stable, so on witht he topic~

I recently bought a new PC, built it myself, it's my 3rd build within a year. but this is my first attempt at overclocking. I'll start with a list of specs-

Case: Antec 900
Mobo: Asus striker II formula, 780i nvidia chipset
CPU: Intel Q6600 G0 stepping - Arctic Silver 5 Thermal Compound
CPU cooler: Thermaltake V1 CPU Cooler
Ram: Corsair TWIN2X4096-6400C4DHX (2x2gb)
PSU: Thermaltake 850W Toughpower Modular
HDD: 320g
GPU: 8600 GTS, soon to be 9800gx2 SLI, or might wait for 9900s release
Bios: 1011

I think thats all of it, I listed everything just incase something was making it hard for me to OC, this is my first time trying to OC a system, so im not 100% what I'm doing yet.

I'll post pictures with my Bios settings here: to many to list myself lol


Idle temp : 30-35c
100% with prime95 : 48-53c

So my problem starts with, in prime95 sometimes my 4th core cuts out after 15-30mins, but not the others, only the 4th.
I run ---in place-large FFTs (max heat/power some ram).

When I finally change my voltages a little and make it stable for an hour or so, I leave it over night/while im at work, but when i come home its either reset/crashed.
I try giving CPU a little more juice, but nothing. I try giving NB/SB a bit, and nothing.
I really not sure how to fix the problem, I cant find the answer in any of the other threads, on any forums.
I've tried using setups from other people that have posted, but they dont seem to be working either. So I'm totally lost.

Any help is welcome, I would love to run at 3.2ghz because I know I should be able to, my airflow and cooling seem fine to get 3.2ghz without a problem.

Thanks in advance!!<3



Jun 16, 2008
hello, I would worry that you have disabled thermal throttling in your bios, I would enabled just in case it does overheat and having it disabled will cook the cpu if it gets to hot, I have different bios settings to you but it looks fine, Your vcore seems to be set to high so i would start by reducing your oc to stock speed, Run Orthos cpu grommacs core test for nine hours then run the memory test for nine hours, If both these pass at stock speed then you will have narrowed it down. Quads can be a pain to overclock, If your ram can take the extra i would try lowering the cpu multiplier by one and raising the FSB to compensate, my mate did this to get stability but you need headroom in your ram. Put it back to stock speed, Run both Orthos tests and this will show if it is component related or an oc problem.



Jun 18, 2008
Hey Mogwilson
I ran all stress tests soon as i got all my parts, and all ran 100% stable @ stock.
I also enabled Thermal throtting, thanks for the tip, as i said im new to this lol.

right now i change my multi, running at 400x8, with 5-5-5-15 timmings on ram, and lowered my vcore and NB. ill see how this runs for me and ill keep it updated.

thanks again for the quick replay =)


Jun 18, 2008
ok so 400x8 doesnt work very well lol, all it does is BSOD and reset on me, x8 multi just seems to give me problems, even have problems gettng past post.

so i changed back to x9 multi.

right now im running

3.15ghz (350x9) @ 1.4vcore
NB @ 1.46
SB @ 1.5
ram @ 5-5-5-15 @ 2.1v

ran prime95 for about 20mins, seems ok so far, going to leave it on over night and see how it goes~
thanks again for your advice :)


Feb 9, 2008
First off, Man, its an NVidia chipset, enable Load line Calibration!

Link the Ram with the FSB unless you plan on going over 1660 QDR. Once you select linked, use Sync mode for the Ram divider. That will make it run at twice the FSB, as it should.

Try manually turning your Trd under Ram timings to 7.

Lower the VTT to 1.3000 unless you have determined that its the only way it will work.

Here is the big secret. Run Core Temp, the program, and list what it tells you the VID of your chip is.

NVidia chipsets have the biggest VDrop and droop of them all!

Once you see what Core Temp says it is, you can then manually select it from your Bios, using stock settings, and boot into windows. Then run CPUz and look at the Idle VCore, make note of it, as well as the VID, and then run Prime 95 Small FFTs on all cores for 30 seconds, and list the lower Value, if its lower, as well!

That way we know what the drop and droop of your board it, hopefully, LLC will disable VDroop, like it does on my board!!

Get back to me with this info when ya can!



Mar 1, 2004
Remember, nVidia FSB has holes, big pits of unstableness that like to swallow overclockers into dispare and false beliefe that they have reached the limit.

400 x 8 maybe unstable so try 405 x 8, 410 x 8 or 399 x 8 all with ram in sync with the FSB and see how it goes.