Help with P8P67 Evo Vcore settings.

Right now I'm trying to get my 2500k stable at 4.4ghz but when I set the CPU voltage offset mode to auto I was getting close to 1.4v Vcore running prime95 which was making me kind of uneasy. So I changed offset to "-" instead of "+" and then set the CPU voltage in AI Tweaker to run at 1.25v. I'm running prime with these settings right now and the Vcore is peaking at 1.336v. If I try to do a manual offset I pretty much always get a BSOD when I try to run prime. I have load line calibration set to auto and I'm only using a 43x mult (103mhz blck) so I'm not sure why the vcore is overshooting so much. I could really use some advice or suggestions, I was hoping to keep it at or around 1.3v at the highest. Am I doing anything wrong? This is my first time OC'ing.

44 multi, 100 Bclock, Loadline high or ultra and either use Offset ( so it drops too with speedstep) or set the voltage manually at 1.35... test, if it passes try lower , and so on...

Thanks, I did a little bit more reading and came up with basically what you said. I set it to manual at 1.325 and it's running fine now. So far it's only been hovering around 1.320. I also set the Load-line calibration to Ultra and decided not to mess with the the bclk anymore. I'm probably going to give the offset a shot again and see if I can get the Vcore lower. On a side note, is 62 degrees Celsius a reasonable load temp running large FFT's?

Offset mode Auto is the same as manual mode auto. The clock determines VID.

3.3ghz = VID of 1.2XX (if i recall correctly). Try offset = +0.100. That should give you 1.300v´which should be enough for 4.4ghz.

Offset mode Auto is the same as manual mode auto. The clock determines VID.

3.3ghz = VID of 1.2XX (if i recall correctly). Try offset = +0.100. That should give you 1.300v´which should be enough for 4.4ghz.

I've got a bad feeling about what an offset of +0.100 would do because I've tried +0.030 and +.025 and those were still dicey.

Quick update: I just set the offset to -0.025 and prime seems to be running okay. -0.025 is keeping the vcore about where it was when I manually set it to 1.325. I'm thinking about setting the Load-line calibration back to auto to see what happens because when I had it set to auto the idle vcore was only around 1.080.

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Originally Posted by illuminati-hwt

Offset mode Auto is the same as manual mode auto. The clock determines VID.

3.3ghz = VID of 1.2XX (if i recall correctly). Try offset = +0.100. That should give you 1.300v´which should be enough for 4.4ghz.

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Worst tip of the day mate :down: Plz try that on the Asus...

Offset is hard to tune as the main issue is when the CPU idles the voltage drops down (depending on ya C states selected), but it's the only mode that allows the Vcore drop. You can usually get away with a slightly lower Offset value as the CPU's tend to overvolt. Using -0.030 here for 4.5Ghz

I'm using 0.050 for 1.424v @ 5.1Ghz

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Originally Posted by Leeghoofd

Worst tip of the day mate :down: Plz try that on the Asus...

Offset is hard to tune as the main issue is when the CPU idles the voltage drops down (depending on ya C states selected), but it's the only mode that allows the Vcore drop. You can usually get away with a slightly lower Offset value as the CPU's tend to overvolt. Using -0.030 here for 4.5Ghz

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So far -0.025 is working fine, I left all my C states enabled, which were all initially disabled, but I have yet to try changing the Load-line calibration back to auto. When I read +0.100 I almost :banana::banana::banana::banana: my pants. I don't really want to burn my chip.:down: Anyway thanks for the help Leeghoofd, so far so good, I'm gonna leave prime running all night tonight with the new settings.