Monitor - no signal, keyboard and mouse - no light

DTHunter

Reputable
May 14, 2014
1
0
4,510
Hi,

I've built my first rig a month ago and now, it already won't work properly...
I connected my computer to an 42 inches LG TV and it worked fine until I turn it off. Now, my monitor says : NO SIGNAL. The mouse's LED no longer lights up, like the light on my keyboard. Still, the fans are running and the lights indicating that the power reaches my GPU are OK too. I tried removing the 3V battery on the motherboard, unplug all connections to reconnect it again and same thing for the RAM sticks. Is the problem coming from my PSU? Is 700W enough for the following specs? If not, which PSU would you recommend?

PLEASE HELP!

Here are my pc specs:
CPU: i5-3570k
GPU: Asus GTX 770
PSU: 700W Cooler Master i700
Motherboard: Asrock z77 Extreme 3
RAM: G.Skill Ripjaws 8GB (2x4) 1600
Fan CPU Cooler Master Hyper 212 Evo
SSD : Samsung 840 series
HDD : Western Digital 1 To

P.S: I'm a beginner in both computer and English, so if you could explain your solution simply, it will be appreciate :) . Thanks.
 

plaintuts

Admirable
if you can try to reseat the GPU ("just remove the Gpu from the pci-e slot then put it back in")
remove the power connectors from the gpu then put it back in.

it's also recommended to give the gpu a little dusting-off

then
boot up, check if the motherboard produces a beep sound.