No display and Power button not working

Matuteh

Honorable
Jul 31, 2013
25
0
10,530
Hello i've recently builded a new pc, but using an old mother, though its compatible with everyhing. When i turn it on, all LED's and fans turn on, but there is no display on the monitor. Also i need to turn it off from the PSU because holding the power button won't work at all (But it turns on with the power button). I have tried:

-Clearing CMOS
-Different RAM
-Reinserting CPU
-Reconnecting everything

What could be failing? CPU? GPU? Mother?
Thank you in advance!
 

jjs0891

Honorable
Dec 26, 2012
767
0
11,360
make sure your bios version is compatible with your processor. ie, your newer processor might require a bios update.

check if the CMOS battery is dead or not.

double check that everything is compatible.