BSOD on system sleep

[TeamTactical]

I've been getting BSODs once a month or so for quite a while, but recently I have been getting them multiple times a day, and every time my computer goes to sleep.

 

Could anybody help me find the cause?

I haven't ever interacted with memory dump files before and I don't really know what to look for.

Apparently dxgkrnl.sys is involved

 

System information:

 

2500k

ASRock Extreme 3 Gen 3

GTX 780 has been upgraded to Crossfire reference R9 290's

 

 

Other info

 

I've been getting weird crashes and graphical glitches recently since upgrading to AMD R9 290s. They were previously used for crypto-currency mining, so I'm not sure if it's a fault with the cards or drivers. I've set them to not exceed 89 degrees Celsius.

 

[TeamTactical]

Alternatively, does anybody know software I can use to test the functionality of my graphics cards to ensure they aren't damaged or corrupted in any way?

[TeamTactical]

I re-installed Catalyst drivers and they seem to have stopped when the system goes to sleep. I'm still after tests to validate these cards though.