PC doesn't beep when starts BUT the Windows Boots + Display goes "No Signal" after playing games.

Hello there,

Two days ago, i clean my PC and since then it starts to have this problems. First, i get no Beeps when the PC starts, but the windows boots fine. Second, after i play some games the display goes "No signal" and it turns black but the PC still running (CPU work, fans spins, PSU works fine -i guess-) and the sound that i get, is that sound that you get when PC freeze.
I played World of Warcraft around 40 min with no problem, OverWatch played a match and the monitor goes "No signal" later played 2 matches and "no signal" Black Desert, well "No signal" after 2-3 min.

I have to mention, that when i cleaned my PC, i had a problem with my GPU, one of the heat sinks that the GPU had, has fall. It had some sort of tape that keep it on the GPU memories. I could not put it back so i used some heat sinks that i had from the after market cooler that i have on GPU from over a year now. Plus i change the cable of the reset button but i don't think this has anything to do with my problem/s.

My specs are:

Gigabyte GA-78LMT-USB3
Zeppelin 8GB DDR3 1333MHz Bulk
AMD FX-6300 3.5GHz
Sapphire Radeon HD7870 XT
Cooler VGA ARCTIC AC Accelero Twin Turbo II
Arctic Cooling Freezer 7 Pro rev. 2

A little old, but worked fine :) ..

Any idea what should i check or what could be the problem?!

I was thinking that the problem may be the GPU and i was thinking to take it out and use the video card that the motherboard has, and see if the problem is still there or not (unfortunately i do not have where and how to swap the GPU in another PC..)

Reply to Paun Andrei
2 answers Last reply Best Answer
More about beep starts windows boots display signal playing games
  1. Best answer
    First thing, check temps in the system during gaming, just make sure you run a game that does not crash so you can view the result. What exactly did you do to clean the system? Did you remove any heatsinks? Try reseating the RAM and run the system with the cover open with a small fan blowing on the components, see if it runs better that way.
    Reply to hang-the-9
  2. what solved this issue?
    Reply to Jonathan_50
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