Persistent Black Screen (Idle/Low Usage)

  Sean.S 01:12 06 Oct 2017


I am looking for some help and advice regarding a recurring black screen crash with my PC.

Basically, my PC runs okay when under load (for example, playing modern games at high resolution). It remains stable for literally days on end if I leave a game open, a benchmark on, etc.

However, when I am using the PC for less intensive tasks such as internet browsing, video playback (in web browser, or with a standalone player) I have intermittent crashes. If the PC is left Idle overnight it is a 90% chance it will black screen by the time I wake up.

The crashes are hard to diagnose because the computer remains 'on' but will not display anything. No blue screen, no windows has recovered from an error, etc.

If I leave the PC in this state, it sometimes recovers and displays the last frame before the black screen but with some artifacts.

I have replaced a few parts in an attempt to resolve the issue - but I have hit a brick wall and really don't know what to try next.

I have installed a new SSD and new HDD this week with a clean install of windows.

I also took the time to clean my CPU, apply new thermal paste and a new cooler. In case it was a temperature or airflow problem.

I have tried different ram memory modules, different configurations, etc.

I have updated the MOBO, updated windows 10 and updated all device drivers.

I have tried different drivers for my GPU (as I suspect this may be a driver issue) and the stability does seem to vary based on the driver in use.

I had a period of 3-4 months where the black screens stopped. Then they returned without me changing any hardware.

I wonder if it may be a problem with my external peripherals (e.g my Mechanical keyboard) - I do have some issues with USB's seemingly connecting and disconnecting in a loop as if the power is surging?

I will be trying the following next:

  1. Removing all my USB's and adding them one by one in case it's a faulty accessory.
  2. Removing my surge protector and running from the wall socket directly.
  3. Checking my Mobo and Bios for any stupid configurations.

Can anybody think of anything else to try or help me narrow down the possible problems?

My system specs are as follows:

PSU: Corsair CX750 Builder Series CX 750W ATX/EPS 80 PLUS Bronze PSU

GPU: Sapphire Nitro R9 390 TRI-X 8GB GDDR5 DVI-D HDMI

CPU: AMD FX-8350 (Hyper 212 EVO/ Big Shruiken 2)

Mobo: ASUS M5A97 LE R2.0

RAM: 4 x 4GB

SSD: Samsung EVO



Hyper X Headset Deathadder Chroma Mouse Corsair K70 Mechanical Keyboard

Thanks in advance

  Fruit Bat /\0/\ 09:06 06 Oct 2017

Sounds ore like its going into sleep mode and struggling to wake. have you tried changing the power settings eg. turn off screen to "never"

  Sean.S 00:46 08 Oct 2017


Thanks for the reply. I have disabled hibernation / sleep mode via windows command prompt. The problem persists.

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