Q66600 Overclocking Failing....

prescott28 · 8 Oct 2010 at 12:01

Having tried various things I am still in need of assistance to try to overclocked my Q6600 which is currently running at stock 2.4 GHz. Below is a picture of the BIOS screen used for treating various settings for overclocking. I have tried changing the CPU host frequency and allowing the board to control voltage that the only result is that the BIOS resets itself after it failed to load. I've also tried using the CIA2 which does a sort of overclocking which works on the basis of upping the frequency when there is a bigger load and dropping back when there is not. This sometimes works well from some programs refuse to run at all which is annoying.

What am I doing wrong or is that something that I've forgotten because it seems most people can persuade this process up to 3 GHz? My machine details, as recorded by CPU -- Z are as the link below. I suspect that my RAM is not good enough for the overclocked as it is PC 6500 but will be grateful for some advice please.

http://valid.canardpc.com/show_oc.php?id=1424045

dcsarge · 8 Oct 2010 at 12:14

The memory should be fine, plenty of people (including me) Oc a Q6600 with 6400 rated parts.

The simplest thing to do is change the CPU Host Clock Control to enabled and then set the CPU Host Frequency to 333 Mhz which will give you 3ghz with a x9 multiplier.

Change the System Memoery Multiplier to keep the memory frequency at 800Mhz.

You will may need to up your CPU vcore voltage too. You can then work from there if it isn't stable.

What cooler are you using, as the stock one isn't very good at that speed?

reiyushin · 8 Oct 2010 at 12:25

The ram should be fine, got a rig in my back room with a Q6600 (with a horrible VID

) and 4 sticks of 6400 ram. I managed to get it to 3.4 stable but it's back down at 3.0 as I don't use it that often and when my parents or brothers use it they don't notice the speed.

As above 9x333 will give you 3.0Ghz, adjust memory multiplier to keep memory near rated speeds. Add voltage as required, you're "safe" until 1.5v but you shouldn't need that much for a moderate overclock

I tend to aim higher in the voltage terms to find a stable point and then work back down to find the lowest stable voltage

prescott28 · 8 Oct 2010 at 14:07

well thank you very much of the advice guys. Unfortunately, things are not working out as expected. I made a settings suggested in BIOS and rebooted the machine. The way BIOS works on the motherboard is that it doesn't like the settings it reboots again and revert to the original settings and that is exactly what it did when I made the recommended adjustments to get to 3 GHz. I am lost know just what it is that's going wrong.

Any further suggestions, please?

Evil-I · 8 Oct 2010 at 14:52

What is the motherboard?

I had a problem a while back with the memory and my Q6600 where the default voltage was no good for the RAM I was using (OCZ Gold I believe). Had to up the RAM to 2.1V to get it to even boot.

I'm suprised you haven't had any luck with the settings suggested by the chaps above, typically a Q6600 should do 3Ghz easily (by upping CPU host frequency to 333).

So to summarise what settings SHOULD work.

CPU Host frequency: 333
Change system memory multiplier from auto to whatever gives you the nearest memory speed to 800Mhz (slightly under is safer than over at this point)
Change the CPU voltage to 1.325v (This should be loads to acheieve 3Ghz and can probably be reduced quite a lot once you prove the overclock works, tuypically 1.2-1.25v should be fine for 3Ghz if your is a G0 stepping, mine did 3.4Ghz at 1.325v).

Monitor you CPU load tempoeratures very carefully, load temperature should be kept below 60 if possible.

E-I

See if that works... Don't forget, sometimes some bits of kit really don't like being overclocked, its often just luck of the draw.

Evil-I · 8 Oct 2010 at 14:54

When you set voltages manually, I'd suggest bumping your ddr voltage up a little. My OCZ RAM needed 2.1v to work correctly.

Hagar · 8 Oct 2010 at 14:54

Make PCI e frequency 100

change memory multiplier from auto to a suitable fixed ratio

disable turbo

if you have ddr2 memory, it can go to 1.8V

Evil-I · 8 Oct 2010 at 15:10

nkata said:
if you have ddr2 memory, it can go to 1.8V

As stated, my OCZ Gold DDR2 required 2.1v to even boot on my Abit IP35 motherboard (and the OPs RAM is OCZ). I'm aware that default voltage should be 1.8v, but in my case it wouldn't even boot at stock speed at 1.8.

E-I

Hagar · 8 Oct 2010 at 15:13

Evil-I said:
As stated, my OCZ Gold DDR2 required 2.1v to even boot on my Abit IP35 motherboard (and the OPs RAM is OCZ). I'm aware that default voltage should be 1.8v, but in my case it wouldn't even boot at stock speed at 1.8.

E-I

You posted as I was composing so missed it. I agree some DDR2 can require 2.1V to post.

andy.