Displays loses signal. PC stay on

[Ganuza_]

Hi, the first time this happened I had only one display (a week ago, maybe). The screen went black, the leds of the keyboard and mouse went off and I had to shut down the PSU manually (holding down the power button of the case did nothing)

The leds and fans of the case stays on, so do they one of the CPU (R7 1700).

The second time was half and hour ago. Now with two displays. I was using Opera with less than 10 tabs open. Same thing with leds and fans. But this time I was able to shut down the PC holding the case button.

 

My specs are:

CPU: R7 1700 with stock cooler (NO OC). Average temp. is 34C (91F - 92F, I think) according CPUID HWmonitor, with spike to 47C (116F) for a couple of seconds. This average and spikes are while I'm using Opera. 56C when gaming (DOOM on high)

GPU: GTX 950 Strix (mild OC with MSI afterburner, but at the moment of the problem it wasn't on the OC)

Mother: Asus Prime X370 Pro

RAM: 16GB Flare-x (2x8GB) 2400 Mhz

PSU: XFX XTR Series 650W Full Modular 80 Plus

Storage: SSD 850 Evo 250 GB

Fresh copy of Windows 10 x64 downloaded with media creation tool on and USB.

 

I have the PSU connected to an stabilizer. But my old PSU (Extreme Power Plus 600W) also was connected to this stabilizer (for 4 years I think) and never had an issue and now is working fine on another PC.

 

And happened again justo now. I turned on the PC, leave it on the desktop and went to the bathroom. When I returned, the displays were off, leds of K/M off and couldn't shut down the PC holding down the power button. Had to turn off the PSU.

 

What I didn't see was if the GPU led stay on when that happens. Also, it can't beep. My case doesn't have speaker.

[Ansuex]

This could be plenty of things.. I think you should try to isolate the problem.

 

Did you try the other PSU? also try running just 1 RAM bank.

[Ganuza_]

It's a pain in the ass, but I guess I will have to change PSU to see if the problem persist or if it goes with the PSU. But I think that the first time that happened, I was using the old PSU, no sure though.

The problem with running the system with 1 RAM bank is that it went a full week without problem. It can do the same if I remove a bank, or it can take even longer.

A memtest will not help to see if it's a RAM issue?

[Ansuex]

A mem test can detect ram issues ofcourse Though it your PC will crash while running it there is no use of running the test.

Guess you should get the PSU swapped first, see what the results are and if you feel like it running a Memtest will never hurt.

[Ganuza_]

Very well, tomorrow it first hour I'm gonna swap the PSUs. Thank you

[Ansuex]

Best of luck man!