PC turns on but blank screen and no beeps

CJ4

Distinguished
Jun 14, 2009
4
0
18,510
I have just bought a new PC. Mobo, CPU, ram, gfx card, HDD and PSU. Ive built it. but when i turn it on then the screen is just blank. everything is on, fans are turning, mobo lights are on but the screen is blank. i tried another screen and the onboard gfx card but still the same. Also I cant turn it off holding the power button, i have to pull the plug to turn off. Please help ?

Thanks
 

CJ4

Distinguished
Jun 14, 2009
4
0
18,510
Cpu : Intel Core 2 due E7300 2.66ghz

Motherboard: Gigabyte GA-EG31M S2

Ram: 1024 mb Jetram DDR2 800

Graphics Card: MSI 9400 GT 512 Mb ram

HDD: Western Digital 160 gb

PSU: Aopen 350 watt


Thanks
 

Crashman

Polypheme
Former Staff


Most likely cause of that issue is that the power supply's 4-pin or 8-pin ATX12V/EPS12V connector isn't plugged into the motherboard.