i& overclocking - What cpu Voltage to use ?

wombraider · 15 Feb 2009 at 10:43

Hi,
I am mucking about with OCing my i7 920 I have left the cpu voltage in auto
In cpu-z this reads back as 1.375 and the idle temps are a little high 45-47 deg c

Can anyone tell me what the recommend voltage on the cpu should be?

I am using a noctua cooler ( think I might put a better fan on it )

currently clocked at 3.2G with HT off and Boost off

j.jarman · 15 Feb 2009 at 10:50

dunno what the vid of these chips is...but if you overclock and leave the cpu voltage on auto, some bioses will increase it. Are you sure u have a good mount between the hsf and cpu?

wombraider · 15 Feb 2009 at 11:49

Heatsink was defo correctly applied , might have to check my air intake filters tho and give em a clean

Coretemp does not return any vid value for this chip

Bios says 1.29V , but cpu-z reads 1.375ish

Can anyone else respond who has oced their i7 with what voltage they used ?

WJA96 · 15 Feb 2009 at 13:50

Most seem to want about 1.42V for 4GHz.

They do run hotter than other CPUs.

spitzoid · 15 Feb 2009 at 17:33

Those volts seem too high for a "mild" overclock - especially with HT & TURBO/BOOST off.

Try setting it manually to something under 1.3V. Keep TURBO/BOOST off but put HT back on.

Edit: Also use RealTemp 3.00 to monitor temps.

WJA96 · 15 Feb 2009 at 19:30

I literally just set my CPU volts on 1.4275, dialled in 200 on BLK and rebooted. I have turned off speedstep though.