Monitor has no signal, PC boots OK (Z77 Extreme 4)

sierra101

Commendable
May 22, 2016
15
0
1,510
When i tried to boot my pc a couple days ago, it would turn on and stay on for about 2 seconds then it would turn off automaticly. This would go on and on until i pressed the I/O button. Im pretty much a noob when it comes to this so I took off and reconnected again some wires and it worked fine, played some games, browsed the web etc.
The next day, when i went to boot it up again, the same happened. I did the same as the day before but nothing worked. Somehow (dont ask me how) It started running normally but the monitor didnt recognize the pc, it appeared as ''no signal''.
I took it to a friend of mine and he said everything is ok but the motherboard is fried.
What can i do? I cant RMA it was a second hand buy, i talked with the person he said to change the board battery maybe it would solve the problem.
I tried:
- Using only one stick of RAM, and switching between every slot.
- Turning off the pc and the power and Clear CMOS ( i did it with the button that my motherboard has in the back i didnt took the battery out)

Theres no beep, fans run fine, the red LED doesnt come on anymore for some reason, the pc seems to boot up as it normally would

I heard about current spikes but i really dont want to spend more money on a new motherboard...

If theres some help i'd appreciate it

Specs:
i5 3570k
gtx 770
Corsair Hx 650W
Z77 Extreme 4 Mobo
 
Solution
Since the GPU can't be the issue if you removed it, then it leaves the motherboard or the PSU. Test it outside of the case with the CPU and only one memory module. If it still won't POST, then test with another PSU. If that doesn't work, then it most likely is the motherboard. Is it still under warranty?

sierra101

Commendable
May 22, 2016
15
0
1,510


Did all that still the same happens. No signal to the monitor
 
Since the GPU can't be the issue if you removed it, then it leaves the motherboard or the PSU. Test it outside of the case with the CPU and only one memory module. If it still won't POST, then test with another PSU. If that doesn't work, then it most likely is the motherboard. Is it still under warranty?
 
Solution