Screen goes black

[Pete_OC]

Hi all,

Hoping you help me figure out why my computer cuts out.

When playing games (does not seem to do this idling), my screen suddenly goes black and says there is no input signal. The PSU and CPU fans are still running, power cuts out on all USB ports (eg mouse, keyboard).
I replaced the GFX card and got a new monitor, but it is still happening. I have run SpeedFan and these are the lines lines of the log (logs every 3 secs) before computer shuts down:

Log 1:
Seconds Temp1 Temp2 GPU Core
33795 43 37 74 32.13
Log 2:
Seconds Temp1 Temp2 GPU Core
34855 43 36 73 31.75

Temps don't look too bad to me, so wondering, is it the temps or something else?
System Spec:
Processor: AMD Piledriver FX-8 Eight Core 8350 Black Edition 4.00GHz (Socket AM3+) Processor - Retail (not overclocked)
Cooler Master Hyper 412 Slim CPU Cooler
Asus M5A99X EVO R2.0 AMD 990X (Socket AM3+) DDR3 ATX Motherboard
GeIL Black Dragon 16GB (2x8GB) DDR3 PC3-12800C11 1600MHz Dual Channel Kit
Sapphire Radeon R9 280X Vapor-X OC 3072MB GDDR5 PCI-Express Card
Running Windows 10 Pro

Please let me know if any other details are needed.

 

[orbitalwalsh]

mobo might be on the way out? dont suppose you know anyone with a spare?

 

[Badfish]

Perhaps its the mobo, perhaps the PSU, perhaps its Windows... So, I would do the following in this order:
Re-install graphics drivers.
Check Windows event logs for errors and try to fix.
Try another PSU. (one with higher output)
Try another motherboard.
Try another CPU.

 

[EsaT]

Graphics card shouldn't cause problems with USB so that hints directly toward motherboard and CPU.
That "Faildozer" CPU was rather power hungry so CPU's VRM might be wearing out.

But could be also old PSU starting to fail.
What PSU you have?

 

[Danny75]

RAM could also affect a variety of things, including USB. You could try just one 8GB stick, and then the other, on their own.