Temp/Voltage question

[EniGmA1981]

Hey guys, been fiddlig with FSB and voltages on my setup lately and I've managed to poke my E8400 up to 4GHz - which I'm pretty happy about - but I'm not sure if the voltage is within 'safe' levels...

Everest gives the voltage at 1.33v (1.328v in CPUz) but in the bios the voltage is set to 1.38125v (is that this vdroop I keep reading about?) but temps seem ok, 39*c idle and 62*c max running prime95 for an hour...

Just after a bit of advice really as I've not really done much overclocking for a while and don't particularly want to frazzle my chip

Thanks in advance.

 

[pastymuncher]

With 45nm cpu's max voltage should be no more than 1.45v but ideally 1.4v or less so you are ok.

 

[EniGmA1981]

Nice one thanks

Additional question: When I ran Prime95, like I said, it ran for an hour and was perfectly stable... But when I tried the Intel Burn Test, it ran three out of five passes and reset... Do I need more voltage to correct this? or should I just stay away from IBT? lol

 

[pastymuncher]

Try a tad more vcore or CPU PLL (if your board has it).

 

[EniGmA1981]

Haven't seen anything about PLL in the bios... so I assume I don't have it lol

Will try a little more vcore and try IBT again

Thanks for your help.

Edit: Upped vcore to 1.34v (everest) and ran IBT fine Thanks again.