E6600 Overclock

[Mullet]

On the overclock I had some success yesterday:

Ran the pc using an option within the bios which clocks the system by 20%, this took my cpu up to 2.9Ghz. I had a browse around on the web to find out what others had been doing and tweaked a few voltages and managed to boot @ 3.6Ghz (unlinked the memory and FS then manually inputted 1066Mhz for my RAM and 1600Mhz for the FSB. The FSB is quad pumped so you have to divide that figire by 4 to get the true FSB....400Mhz. As I say, the PC booted and got me all the way to the black windows screen (you know the one with the windows 'flag' on it. The image of this screen was a little faded...then the system restarted before I was able to get into the desktop...weird. Tried upping the cpu to 1.5v still no joy....the Northbridge was running at 1.45v (stock is 1.3v) and is not very well cooled so didn't want to pump more juice through that...well not until I get some better cooling on that!! What d'ya think would cause that?? Maybe I should try running a 5:4 memory divider?

After trying to get into desktop @ 3.6Ghz I gave up (need to read around a bit more) I dropped the FSB from 1600Mhz (400) down to 1550Mhz (387.5Mhz) which gave me a CPU speed of 3.48Ghz. I got back into windows and run a benchmark 3DMark06....was obviously expecting good things....

But...was shocked to find my score @3.48 was lower than the score I achieved with the cpu @2.9Ghz....why d'ya think that happened?

Help guys!!

[FarFarAway]

OK well for a start never use the automatic overclocking features ever.

Set it urself in the BIOS

1.5v on the CPU isn't enough for 3.6GHz in my experience.

[Mullet]

Kemp....in your experience is 3.6Ghz a do-able 24/7 overclock? Or am I setting my sights too high?

[FarFarAway]

It depends on the CPU. My e6600 needs 1.65v for 3.6Ghz which is far too much, even tho temps are still ok

I leave it on 3.4GHz 24/7

[Clunk]

My E6600 needed a lot of volts as well. To be honest mate, you probably wont notice much difference between 3.3 - 3.6 for normal use anyway, however, it will increase your E- greatly

Edit ^^ that wasnt a swearword!

[dave1920]

am I being stupid or is throttling an issue on processors. If it is still a feature could the temps be too high causing the processor to throttle back?

Dave

[Mullet]

Nah, temp are barely above 30 degrees. And when I was benching they didn't break 38 thanks to my new water loop.

[PV5150]

Originally Posted by name='Mullet'

Kemp....in your experience is 3.6Ghz a do-able 24/7 overclock? Or am I setting my sights too high?

Most deffo do-able. But the majority require too many volts for a sustained 24/7 oc.

Originally Posted by name='Kempez'

It depends on the CPU. My e6600 needs 1.65v for 3.6Ghz which is far too much, even tho temps are still ok

I leave it on 3.4GHz 24/7

Holy crap! I thought mine was high @ 1.5

[FarFarAway]

Ye I don't keep it that. Still pretty high @ 1.55v 3.4GHz tho

[Mr. Smith]

Woah! Seems like I am not the only one with a moody chip!

I can go up to 3/3.1ghz stable on stock volts, 1.45v for 3.3 stable, 1.5v for 3.4 stable... Then it is no longer orthos stable but will f@h 24/7 simultaniously gaming @ 3.5 needed 1.575v... All that was on water.

With the pelt temps are over 20*C cooler so I gave it more juice!

Max OC so far is 3.78ghz with 1.6/1.65v - only super pi stable!

f@h/game stable @ 3.6ghz 1.6v...

Anyway I am changing my setup for far superior rads and fans so by mid March I should have got all my stuff and my RMA ram back and a sweet setup

Bottom line is you decide what is 'safe'