Overclock doesn't seem to work after a clear CMOS.

Mr Tickle · 13 Dec 2006 at 00:51

I did manage to overclock my cpu today from 2010Mhz to 2250Mhz but while trying to find the limit of my memory my pc wouldn't boot so I had to clear the cmos and re-enter my settings etc to the best of my knowledge.

I've disabled Cool & Quiet, Set CPU Frequency to 225Mhz and in the DRAM config I reset the MemClock index value from 200Mhz to 166Mhz (CPU : DDR 1:0.8) and the Hammer Fid control set to auto (x10)

Bios now says Current CPU Frequency is 2250Mhz yet when I boot into windows CPUz still says 2010Mhz :mad:

Yet if I change the Hammer Fid control from x10 to x7 in bios then CPUz shows the cpu at the lower speed.

Any ideas?

Thanks in advance.

ghgh · 13 Dec 2006 at 08:22

Maybe its resetting it back due to something not being right allowing it to clock a tad higher than stock, my guess is that your htt or LDT bus is at 1000MHz / 5x the HTT, you need to set this to 4x when going over 200MHz as most CPU's / mobo's don't like the HTT going over 1000MHz.

I can't see what else it can be stopping you get a slight overclock. Some of those 3200+'s can do 2.7GHz on air cooling.

If the BIOS says the CPU is at a certain speed and it carries on through the POST screen and loads Windows then CPU-z should also say this, stating the obvious I know - have you tried another program that reads the CPU speed such as WCPUID.

Are you using the latest version of CPU-z?

Defcon5 · 13 Dec 2006 at 09:01

Cmos clear will have turned cool n quiet back on?

Mr Tickle · 13 Dec 2006 at 10:29

Thanks for the replies. I did turn Cool & Quiet off again but I didn't try the HTT at x4 tho so I guess I'll try that. My CPUz version is 1.38 which I think is the latest. I'll try to get WCPUID and give that a go.

Mr Tickle · 13 Dec 2006 at 23:44

Problem solved by clearing the cmos and loading optimized settings, then reapplying my OC

Now for some more tweaking to try and get 2.5Ghz

Defcon5 · 13 Dec 2006 at 23:57

cough1.6vcough

Mr Tickle · 14 Dec 2006 at 01:53

Bad cold you got there m8

What's the max SAFE voltage for this chip? Temps at current voltage are 25C idle and 34C load (using SuperPi)

Mattus · 15 Dec 2006 at 00:01

Mr Tickle said:
What's the max SAFE voltage for this chip?

Probably 1.55-1.6v on (decent) air cooling.

Mr Tickle · 15 Dec 2006 at 12:11

Thanks Mattus

Mattus · 15 Dec 2006 at 15:19

No worries

As a guide to what these chips can be capable of on air: