[vrd]

overclocking a q6600 on P5Q pro. (with Transcend 667 MHz ram 5-5-5-15 (1.8v) )

i can get stable oc upto 2.7 GHz (300x9) with vcore 1.2 v

after that,..whatever i do,..i cant get the pc to even boot.

i have tried to increase the vcore till about 1.4v but still cant boot with 333x9.

what seems to be the problem?

1)should i further increase the vcore?
2)is the the ram bottle necking? should i overclock it before the cpu?
3)currently everything other than the fsb,multiplier and vcore is on auto.should i change something there?

please help

 

[happyxix]

The ram auto OCs with higher sb. Turn Vcore off auto. Turn off alot of the Bios options.

And your ram do look a little ancient. I have no idea if it would push 333 fsb... What cooler do you have?

There are many factors in OCing, make sure to read the noobie thread as well as that thread on P5q series. You might get alot of answers from there.

 

[10acjed]

Quote:

Originally Posted by vrd overclocking a q6600 on P5Q pro. (with Transcend 667 MHz ram 5-5-5-15 (1.8v) ) i can get stable oc upto 2.7 GHz (300x9) with vcore 1.2 v after that,..whatever i do,..i cant get the pc to even boot. i have tried to increase the vcore till about 1.4v but still cant boot with 333x9. what seems to be the problem? 1)should i further increase the vcore? 2)is the the ram bottle necking? should i overclock it before the cpu? 3)currently everything other than the fsb,multiplier and vcore is on auto.should i change something there? please help

add a little bit of voltage to your North Bridge/FSB

asus-p5q-series-owners-thread.html may be helpful to you

 

[DuRoc]

Your motherboard is very capable by that ram will hold you back. Like they said above add some NB voltage and maybe also up your ram to 1.9 or even 2.0 and make sure you are 1:1.

 

[sgdude]

you using a stock hsf? get a better cpu cooler! That ram should be good for 3ghz (333x9).

 

[ericeod]

Set the NB strap to 333 and the Ram speed to the lowest setting. Then set the NB voltage to 1.26v, the PLL to 1.52v and the FSB Termination voltage to 1.28v. Then continue OCing.

 

[vrd]

thanks for the quick replys!

one more thing,..i am currently using 2x1 GB + 1x2 GB ram sticks.

can that cause problems in OCing?

 

[ericeod]

Quote:

Originally Posted by vrd thanks for the quick replys! one more thing,..i am currently using 2x1 GB + 1x2 GB ram sticks. can that cause problems in OCing?

Yes it can. I would remove the 1x2Gb and try OCing first.

 

[vrd]

well turns out the ram was indeed the bottleneck.

after setting the fsb:ram ratio to 1:1 and upping the dram voltage to about 1.9 i was able to reach 3.0 GHz (333x9) on stock cooler.

the temps seem to be high right? must get a external cooler asap

 

[10acjed]

Are these idle temps?

I am also reading max temps of 85 - 77 - 75 76

The thermal max temp of a Q6600 is 72c, any hotter than that is not good for your cpu.. http://processorfinder.intel.com/det...px?sSpec=SLACR

Under full load (OCCT - Prime95 small FFT's) I bet you would see temps in the 80's or more... Not recommended...

Get yourself a Xig 1283 http://www.petrastechshop.com/xiredscs1cpu.html

 

[vrd]

yeah even i was wondering they might be high.

looks like i've got a hold of it now temps are 45c at idle and about 65c at load. changed the vcore to 1.16v