Sudden Black Screen/No Output from GPU

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mcnerd321

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Dec 16, 2015
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Hi,

I have been using my self-built custom PC for around 2 weeks.

Every so often (around 10 times), with different applications/games open each time:
The system hangs/crashes where the output from the graphics card appears to just turn off, i.e. signal stops being received by my monitor. And the caps lock light etc. on the keyboard stop responding.
However, the fans keep running and all indicator lights are still on.

Most commonly, this happens while I have Chrome (with Spotify Web Player) and a game open. This is probably due to the fact that I have mainly used it with those things open, rather than they are what is causing the fault, as it also happens with only Photoshop CC 2015 open and once on the desktop.

Drivers? Software? Hardware? OS? Not really sure what's causing this issue! It's just mighty annoying!

System Spec:
OS: Windows 7 Home Premium SP1 64-bit (Can't get on with Win 8 or 10, so got a new copy of 7)
Motherboard: ASRock 990FX Extreme3
Graphics Card: ASUS Radeon R9 390 8GB
CPU: AMD FX-8370E 3.3GHz 8-Core (Using stock cooler until funds are available for something a little quieter!)
PSU: Corsair CX750 (The non-modular version)
RAM: 16GB (2 x 8GB) Kingston HyperX Fury DDR3-1866
HDD 1: SanDisk SSD Plus 240GB
HDD 2: Seagate Barracuda 1TB 7,200rpm
Optical Drive: Samsung SH-224FB/BEBE

Additonal Info:
Temperatures in centigrade not fahrenheit!
Not had chance to 100% stress test the system yet so the load temps were taken while playing Cities Skylines on max graphics settings with several tabs on Chrome open in the background.

CPU Temp (Idle/Load): 31/60
MB Temp (Idle/Load): 29/56
GPU Temp (Idle/Load): 36/73
GPU Power Temp (Idle/Load): 32/64

I have tried using DVI and HDMI outputs from my graphics card, and the problem occurs regardless of which is in use.

The system is not overclocked, but AMD's turbo boost is enabled.

Any help or advice you can give is greatly appreciated! Also, apologies if this is in the wrong section!
 
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45 magnum

45 magnum

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Dec 13, 2015
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at this stage its hard to say but if you have a few minutes you could try making sure all hardware is nicely plugged into their ports/slots etc on the motherboard and all cables and wires are connected good too, make sure the ram is nice a tightly clicked in too.

So difficult to say this early, is the system overlclocked ? the cpu or ram ? if so then you may need to drop the overclocks down to stock speeds and try that for a while, again its hard to say. Good Luck.
 
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mcnerd321

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Dec 16, 2015
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Thanks, everything does seem to be plugged in/seated correctly.


Nothing is over-clocked, however AMD's turbo boost is enabled in the BIOS.

The system always turns back on and works immediately after the crash occurs. Only indication anything happened is Windows option to boot into Safe Mode.

 
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45 magnum

45 magnum

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are you getting a computer crash, you know like the blue screen of death ? (BSOD), or is it simply shutting down and then asking would you like to boot normally or go to safe mode ?

If its offerring a fix then select that option or when you get back into windows do a system restore the usual way, go back a few days to a date that everything was working perfect, these are just some things to check/try early on with things like this

system restore >> http://windows.microsoft.com/en-gb/windows7/restore-system-files-and-settings

i dont want to worry you so dont be worried as its not worth worrying about, but the fault you described is very much like a fault a power supply could cause and the only way to test that would be to get either a loan of one that has enough power for what you need or at worst buy one, but thats after you have tried all the easy fixes first obviously.
 
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mcnerd321

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Dec 16, 2015
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4,510

Screen just goes off completely but the fans keep running. Only way to get it to turn off is to hold the power button (the reset switch doesn't do anything). Then when you turn it back on it comes up with the option to boot normally or safe mode.


There isn't any option to repair given by the system. And it's only 2 weeks old, there is no time that it hasn't been doing this unfortunately!


Is there any other way to test a PSU? The 750W Corsair that's installed, is again, new. And the only other power supplies I have to hand are 250W and 200W which definitely won't support my system. I have had the GPU maxed out for 5 minutes and it hasn't crashed/failed yet?
 
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45 magnum

45 magnum

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Dec 13, 2015
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yes, there is the paper clip test for a PSU, look it up and be careful, if your going to enter into the pc case then make sure that the electric cord is unplugged, and make sure all the connectors coming and going from everywhere are firmly connected, same with the graphics card and ram too.
(for major testing the psu it would need to go to some sort of electric repair shop that has the meters to check these things).

Another common thing for faults similar to that is ram sticks not being seated/clicked in nice and firmly (not too firm, dont break them, lol), but if it was the ram then the only option would be to get new ram, you say its all new so it shouldnt be a problem, I know its all a pain in the neck though, thats life with PC's though I guess, lol
 
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45 magnum

45 magnum

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I found a great PSU calculator website, you simply put in all your computer hardware/components etc and then it tells you what PSU would be good for you or at the very least just work, however I would never just buy one that only just works and no more, for me I would have to have one that would be able to power much heavier voltage hardware in case of future upgrades etc, puts a lot less stress on the PSU too if it has more power than is really required, anyways, see here >>> http://outervision.com/power-supply-calculator
 
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