Overclocking question

[guster730]

Hi, I'm new to overclocking.
Since I have an asus mobo, I've been using the "ai suite" to overclock.
I'm running on a Core 2 Quad Q6700 2.66Ghz, I can over clock fine, but once I hit 3.0ghz windows doesn't start. (I get the post message though, just get a black screen when windows normally starts up)
I tried increasing the voltages through the ai suite also, which didn't work unfortunately.
I can even do 2.9, just not 3.0. I'm guessing I should be OCing through the bios or something, but I can't figure that out.
Any tips?

 

[senna]

There is a great Core2 Quad OC guide here, read up there to see how to use the bios.

Otherwise, check to see if your temps are in check.

Cheers!

 

[guster730]

Thanks.
Man, that's long. Reading it now.
But if anyone knows my exact problem, let me know

 

[jsc]

There's a good chance that you are overclocking your memory. And that is killing your overclock.

After studying the general OC guide a little, you should look for a guide for your particular motherboard. Google is your friend.

Go through the guides. Then go into the BIOS and change the System Memory Multiplier (or whatever your BIOS calls it) from AUTO to 2.00, 2.00B, or 2.00D - whichever you need to set the Memory Frequency to twice the FSB. Then when you increase the FSB, the memory clock will rise in step with it. If you are at stock frequency (266 MHz), your memory clock should be at 533 MHz.

Download CPU-Z to check your FSB:RAM ratio. It should be 1:1. Now you start increasing the FSB.

 

[guster730]

Ok, before I screw anything up, just wanna make sure.
I ran CPU-Z and since I'm at 2.93ghz at the moment, my bus speed is 293. I can set it to unlinked, so that means I should make the "actualy memory (DDR) mhz" 586? And I wanna make the CPU 3.0ghz, make it 600 mhz?

 

[guster730]

Ah, read your post wrong, I understand now.
But I tried that and it didn't work still. I'm currently on 2.99ghz, but 3.0 won't work. It just annoys me lol.

 

[guster730]

Bump.

 

[guster730]

Increased some of the voltages and got it working, running at 3Ghz now, thanks.

 

[guster730]

Best answer selected by guster730.