Graphics loses signal when overclocked

[jdfox]

Hey all, im having a few problems when overclocking my 2600k.
when i o.c it to 4.4ghz and try to play a game the graphics card stops working and i get no signal on the the screen popping up but if i leave it at stock speeds it works fine and i cant seem to figure out why. ive re-seated the card 3 times checked all leads and connections but cant find the problem. i was maybe thinking the psu is not supplying enough power when overclocked it is a 750w psu and im running a Nvidia GTX 560 ti O.C. if anyone has encountered this problem or knows why this is happening i would be be grateful if they could help me out thanks

 

[Motorheader]

I was going to suggest possibly power supply as well.

I wonder if it is a board/bios issue for which there may be a resolution via update. Could be a setting in the bios as well that has an impact on the PCIe clock. This may be a result of incorrect method of overclocking the 2600k.

 

[denis280]

When Overclocked What are the Temp?

 

[jdfox]

hi dennis my temps are in the mid 50's when fully loaded never passing 61.c

 

[jdfox]

can i jst add this has jst started to happen its a new build and worked very good for the last few months and jst started one day.

 

[denis280]

Overclocking too high could cause damage in short or long time.try lower and see.but myself i would leave it to default setting.