I have overclocked my Q8400 to 3.0 GHz (from stock 2.66 GHz).
I ran Prime95 (blend) for 29 hours without errors and 3DMark06 ran fine as well. Temperatures during Prime95 was max. 51 C on any core (according to CoreTemp and SpeedFan).
I was just wondering what the next step would be if was to push my CPU further. That is - what kind of speeds would be the 'max' given my settings and hardware specs below. The purpose of overclocking for me is better gaming performance, so I'm not really in it for the overclocking itself (although I admit it's kind of fun ).
i have bought for a week this cpu and would like to overclock it in the next time but i havent ideas how it is work? can you give me some guide how i can do it. my mainboard is a asus p5q pro without firmware update. and i have a cpu cooler from alpenfoen.
Sadly I'm not making much progress going beyond 3.0 GHz... It seems that running my memory on anything lower than 900 MHz results in my pc not booting properly. (that is when attempting to go above stock 2.66 GHz)
I've tried the 1:1 settings (1600 FSB / 800 MHz memory) but I didn't get it to work. After I 'save and exit' in BIOS the pc doesn't boot and I have to turn it off and on again. Then it goes through POST but gives me a message about the last boot or POST was a failure, and I am prompted to go into BIOS and revert back to default settings or press F1 to continue. The latter lets me boot all the way into Windows but looking in CPU-Z all settings have been changed back to stock values (2.66 GHz etc etc).
On the other hand, if I choose to go into BIOS I see that all settings are still at the o/c values but exiting without saving results in either a proper boot (but still nothing higher than stock values in CPU-Z) OR "nothing" happens... (which forces me to turn the pc off and on again).
Going back to my 3.0 GHz settings (as described in my first post^) works fine and boots and POSTs without error everytime.
Do I need to apply more Vcore voltage or start messing around with my memory voltages/timings to be able to reach higher speeds? (never done that before).
And can someone please explain "sync mode" ?