Core i7/X58 Overclocking Thread

[Splave]

My question is : HT or higher clocks?

Which is more 'useful' in 24/7 computing?

Depends on your personal definition of computing. I browse the web and play games and thats it so I just assume leave it off.

[mascaras]

Hi

Core i7 920 @ 4Ghz
191x21
HT ON
QPI/VTT : 1.235v
Vcore : 1.31v Bios (1.264v Full)
Uncore : x16
Ram : x8
Gigabyte UD5 (F4K)

[dejanh]

Hi

Core i7 920 @ 4Ghz
191x21
HT ON
QPI/VTT : 1.235v
Vcore : 1.31v Bios (1.264v Full)
Uncore : x16
Ram : x8
Gigabyte UD5 (F4K)

Can you take a MM to your board and measure the actual voltage? That seems awful low for 4GHz, though there has been people that have some nice chips...

On a different note, I needed to get some proof that temps play a huge role in really limiting the OCs and that lower temps == lower volts and higher OCs, so I devised a little experiment.

My normal room temperature is about 23C. I cooled it off to about 10C-12C, and did an open case test at 4GHz (212x19) and a closed case test at 4.1GHz (216x19). I have tightened memory timings too to 7-8-7-20-2T and have the memory running at 1700+MHz. As I have anticipated, both Prime just fine with 1.35V and 1.43V respectively.

So as you can see, good cooling goes a long way here. This is just an air test with low ambient. Water should be better, and good water even better. The volts on the 4.1GHz OC should be able to come down to as low as 1.38V - 1.40V when the temps are kept below ~70C.

I will post screens in a few minutes.

Edit: Here are the screens...