Overclock needs more voltage when ambient is warmer?

[VirtualLarry]

Is this normal? I was having some trouble with my main rig (X6 1045T @ 3.51, 1.300v BIOS, 1.328v after LLC), with the recent warm weather. I tried bumping the voltage .025v. Am currently testing if that stabilized it.

 

[sm625]

IDC will probably post a chart showing that indeed a cpu consumes more power as ambient increases.

But I can tell you this. I put my finger on my cpu fan to stop it, and it brings my idle temp up from 38 to 52. VCore stays the same at 0.86. Even after fully loading it and then removing the load, it still stays at 0.86, even as the temps slowly drop from 70C. But who knows how accurate that is. My power draw stays at 76W at idle, regardless of how hot it is.

 

[Idontcare]

Absolutely normal.

Rising temps requires higher Vcc to remain stable.

Here's the voltage needed to keep my 2600K stable as a function of operating temperature.

 

[Dufus]

Idc would you post a few more details please.

1. Fixed or offset vcore.
2. How are you measuring vcore.
3. How are you measuring CPU power.

Thanks

 

[Idontcare]

Idc would you post a few more details please.

1. Fixed or offset vcore.
2. How are you measuring vcore.
3. How are you measuring CPU power.

Thanks

Fixed Vcore. Physically measured with multimeter.

The answer to the last question is detailed here: Effect of Temperature on Power-Consumption with the i7-2600K

 

[Dufus]

Thanks for the link. Just one more question, what load line correction was used if any?

 

[Idontcare]

Thanks for the link. Just one more question, what load line correction was used if any?

Left on "Auto" in the BIOS:

 

[VirtualLarry]

Thanks IDC, that's what I was looking for.

 

[KompuKare]

Just read IDC's original results again. That's really amazing stellar work there! Puts a lot of reviewers to shame actually.