Screen blanks after setting overclock?

[xtknight]

This is quite weird. Using ClockGen NF4, I set my 3500+ to 1.45V and ~2500 MHz and then the screen blanks once, but 1.425V@~2400 MHz is fine. Why would this be happening? Anyone seen it before? I do have Cool 'n Quiet enabled if that makes a difference.

 

[atybimf]

Sometimes when your PC can't handle the overclock, that will happen. Since you needed more voltage to get into Windows, I'm guessing you'll have to bump it one more time for it to be Prime stable.

 

[xtknight]

At the moment I booted up Windows in stock and have stock settings in BIOS. After going into Windows, I use ClockGen NF4 to overclock it a bit. When I hit about 2500 MHz, that happens, but 2414 MHz seems fine. Voltage seemed irrelevant to my results (Whether 1.425V or 1.450V, 2.5GHz still blanked my screen once). So other people have had screen blanks like this? Never heard of it. :Q Well shortly thereafter I got a BSOD at 2414 MHz/1.425V, so I can only assume it was unstable. That is odd, because I have always overclocked to 2414 MHz for this specific application (ATI TV) so encoding was faster and it had never crashed before. I am running 4x512MB 2T 333 MHz so it wouldn't be my DDR400 RAM pooping out. Perhaps it's because my PCI bus is not locked to 33 MHz. PCI was at 35 MHz at 2.5 GHz.

 

[Markbnj]

I hope at least you are experimenting in Windows safe mode with only minimal drivers and services running, or that this is a fresh install of Windows and you don't mind borking it up.

Overclocking in Windows is asking for trouble eventually.

 

[ronnystrauss]

take off cool n quiet right now

 

[atybimf]

Originally posted by: ronnystrauss
take off cool n quiet right now

Whoa! Yeah, for sure. I didn't read the OP closely enough. Always turn off CnQ.