Overclocking Core2Duo

binro · l33t Joined: 06 May 2005 Posts: 742 Location: Bangkok

I have just installed a system with a Core2Duo E6400 and I have previously read a hardware review somewhere that stated these processors were good value because you could overclock them from 2.13 GHz to 2.77 GHz, so I thought I would try it. I went into the BIOS on the Jumperless panel and selected a 30% increase profile. I rebooted and the BIOS messages said the CPU was at 2.77GHZ but when the kernel booted I saw:

i.e. nothing has happened. Am I missing something here? (I think I saw a similar post already on the forum but, as usual, searching find nothing.)

TIA
_________________
"Ship me somewheres east of Suez, where the best is like the worst,
Where there ain't no Ten Commandments an' a man can raise a thirst"
from "Mandalay" by Rudyard Kipling

matja · n00b Joined: 19 Jan 2007 Posts: 34

I dont know what that cpufreq directory is representing, I don't have it on my system, but I suspect that something like Intel Speedstep (EIST) is interfering with the speed.

Have you checked /proc/cpuinfo instead?

When I overclock my Core 2 Duo, the results are accurately displayed in /proc/cpuinfo and my compile times are measurably faster.

From my system...

binro · l33t Joined: 06 May 2005 Posts: 742 Location: Bangkok

I have just found the other thread on this subject: https://forums.gentoo.org/viewtopic-t-517463.html. Disabling Speedstep in the BIOS now gives me the correct figures.

HTH
_________________
"Ship me somewheres east of Suez, where the best is like the worst,
Where there ain't no Ten Commandments an' a man can raise a thirst"
from "Mandalay" by Rudyard Kipling

DrAgOnTuX · Posted: Thu Feb 01, 2007 5:26 pm Post subject:

enlightend · n00b Joined: 18 Jan 2007 Posts: 29

Could well be. Many E6600's clock 3.3 to 3.4Ghz on default vcore and many of them reach 3.6Ghz on higher vcores and "normal" air cooling.

Now I simply can't wait for Intel to go to the new fabs they announced a week or so ago. If these C2D E6600's clock like this already, imagine how they'll do with another shrink.

DrAgOnTuX · Posted: Thu Feb 01, 2007 10:11 pm Post subject:

Imagine:
- Core 2 Quad @ 45nm
- 4x4MB L2 cache
- clock up to 3,6GHz, stable!
- TPW about 80 watts

What a wonderful dream :oops:

enlightend · n00b Joined: 18 Jan 2007 Posts: 29

Thats the great thing about our beloved computer world. Its probably one of the only fields where dreams come true within your lifetime and usualy actualy within a year XD

What you dream now is a standard within a year or so anyways.

Helps us all in a perpetual dreamstate too :p
Because once your dream comes true in getting new hardware, it'll be slow and obsolete within 3 months to half a year :p