GPU problems with blue screens

[frostseer]

Hello,

 

so I am not sure what is causing this, but I have been having various issues over the last few days. Here is my current setup:

 

Case: NZXT Lexa S

PSU: Cooler Master G750M

MB: Asus Z97-A

CPU: Intel Core i5 4690k, stock cooler, stock clock speed

GPU: Asus GTX770 DirectCU II

RAM: Kingston HyperX Fury 8GB single channel @1866Mhz (with EZ XMP on)

HDD: Western Digital Black Series 1TB

OS: Windows 8.1 64bit

 

So I build this PC a couple of months ago and had no problems up to this point.

 

So it all began a few days ago. I was playing Wildstar while suddenly i got a black screen and after that an error stating that my GPU driver had crashed and then recovered. This started happening more and more frequently but curiously enough it only happened in this game and from time to time in Assassin's Creed 4. I the issue and found out that I should try adjusting the PCIE latency somewhere in the BIOS. Unoftunately being a noob at tweaking BIOSes I did not managed to find this setting and just let it be untill today I tried playing a game of League of Legends and just in the middle of champ select for no apparent reason I got a blue screen. Upon restarting my PC did not manage to boot fully and the red LED next to the PCIE slot, where my GPU lies, was lighting up red. I restarted it again and it booted fully. I immediately turned off my system, unplugged it and checked all cabling. I switched it back on and it took me 2-3 restarts to fully boot with the issue described above preventing me from doing so.

 

I was running my GPU slightly over clocked with GPU and memory offsets of about 77Mhz (couldn't get more in the first place). That's to say I never OVed the card. The driver crashing from earlier required me to also restart my PC in order to play games or even watch videos. I decided to turn off my over clocks in hopes to stabilize the system. Sadly this did not help.

 

Any idea what could be causing this? I have not tried a different PCIE lane on the MOBO yet.

 

Thank you all in advance.

[Altecice]

Reset your GPU OC to stock if you have not already tried that.

[frostseer]

I have already done that. Sadly did not help.

[Apathyy]

Do you have any other GPU you could try and use?

[Krzyimprt]

I have already done that. Sadly did not help.

Use the onboard HD4600 to rule out your GPU.

[frostseer]

Do you have any other GPU you could try and use?

 

I could try and put in my room mate's GPU (GTX 770 Gigabyte version).

[Apathyy]

I could try and put in my room mate's GPU (GTX 770 Gigabyte version).

either try that, or easier, use your onboard graphics, if these work fine, then its your GPU.