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Question

Mouse & keyboard unresponsive + grey striped screen

Jul 17, 2016 6:46AM PDT

My system has been working fine for half a year now (a while back my mobo failed and I got a new one along with a cpu due to sockets), but strange errors have begun occurring.

Specs: (mobo and cpu are fairly new, rest are ~4 y/old.)
Motherboard: Asus z97-a
CPU: i7 4690k
GPU: Radeon HD 7950
PSU: Silver Power SP-SS750M 750w
RAM: Corsair 8GB (2x4GB) DDR3 CL9 1600Mhz VENGEANCE
Probably irrelevant:
Mouse: steelseries rival 300 (engine 3 installed)
Keyboard: Logitech G11
Monitor: BenQ XL2411Z (plugged into gpu with dvi)

First issue: While playing CS:GO, every 2-3 minutes my mouse goes unresponsive, and about 5 seconds later so does my keyboard. 10 seconds after that I hear the usb disconnection sound, then my mouse and keyboard start responding again.
I tried CS:Source too, same thing happens.
This hasn't happened while not playing a game. Instead...

Second issue: I haven't been able to reliably reproduce this error, but the first time it happened I clicked on an embedded youtube video.
The moment i clicked, the screen went grey with lines all over the place, some flickering, some not.
I didn't wait to see if it would fix itself with time, since I was scared it would screw up my computer even more.
I forced shut down.
Happened once more later, not sure what I was doing when it happened.

Where do I begin to troubleshoot? Both of these issues began occuring at roughly the same time (1 day apart).
Thank you so much for any help you can give me!

Discussion is locked

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Answer
FIRST ISSUE RESOLVED
Jul 17, 2016 10:26AM PDT

The first issue is the mice's fault (in the process of RMA), the second issue remains a mystery.

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Since it was Youtube try one thing.
Jul 17, 2016 11:14AM PDT

Google "Disable Flash Hardware Acceleration."

It's an old issue you see on old cards.