Am I having a bad Q6600 CPU?

[peehere2000]

Hey guys, I have a Q6600 Step G0 CPU with P5K Premium mobo and 2GB of GSkill DDR2-1066 RAM. Somehow, I couldn't OC it to 3.6GHZ stable. At 3.4GHz, Core#1 failed only 4 minutes into Prime95 test but rest of the cores passed 24hr test. I use a Zalman 9700 CPU fan and my temp isn't even 50C on CPU. Am I having a bad CPU or I am doing something wrong here?

 

[°TheMadDutchDude°]

Up the volts, what Vcore are you on at the moment?

 

[usman.zx10]

i had the same when clocked at 3.6 i just upped the vcore and all was good.

 

[peehere2000]

The Vcore is at 1.34 right now at 3.4GHz. And even at 3.4GHz, my Core1 failed Prime95 test immediately. I tried to up the Vcore to 1.4 and didn't help the situation. It seems all other cores are working fine except this Core1, which is the one that always fails.

 

[Luigi]

Raise the Cpu PLL slightly or the CPU Vtt

 

[Bungral]

Whas the safe-ish limit to PLL at VTT?

 

[peehere2000]

Is this a problem with mobo? As I have seen that most good overclocking for Q6600 is done on maximus, rampage or other super good mobos.

 

[°TheMadDutchDude°]

No, nothing wrong with your motherboard, P35s are very good overclockers if you're on a budget.

Up your CPU FSB overvolt such as PLL or VTT etc options by one notch in the BIOS and see if that helps

 

[Luigi]

Is this a problem with mobo? As I have seen that most good overclocking for Q6600 is done on maximus, rampage or other super good mobos.

Even my maximus, you have to overvolt VTT, NB and Pll