GPU Crashing Under High Load (Stock Clocks)

[t3chie]

Hello,
I've bought a ASUS R9 280X Matrix Platinum Edition around a month ago and it has been working fine. I got into Bitcoin mining and Litecoin mining. I started off with Bitcoins and I've been getting some good hash rates, also I've been playing BF3 and Far Cry 3, both at max settings and it's been fine. I started to play around with GPU Tweak and overclock my GPU, I used the Burn function to save the clocks into the GPU's BIOS. I didn't really notice any problems with it but once I started Litecoin mining, it would eventually crash and I would get this white screen with vertical lines, sometimes blue with vertical lines. It also happened in 3DMark 6. I have no idea what to do now. I just want a fully functioning GPU. It shouldn't be crashing at stock clock speeds. Also, I've tried to flash the BIOS with ATIWinFlash but the problem still occurs.
What can I do to fix this problem? Also, I have a XFX 750W PSU and I don't think the crashing involves the power since I've been using it successfully before with the same PSU.

 

[Eximo]

Nothing says you didn't damage the GPU via over temperature or over voltage when you had it overclocked. Every GPU is a little different.

Monitor your temperatures, the extreme loads may have just popped the heat sink off of the GPU a little and taking it off and re-applying paste may solve the problem.

If it is crashing at low-temperatures, then it is probably damaged.

 

[bjaminnyc]

Does it also crash with benching programs other than 3DMark?

Just to eliminate the OS might be worthwhile to try some benches in Linux via a thumb.

 

[t3chie]

Thanks for the replies. It only crashes at high temps. It has never reached over 85C on stock. Also, I haven't touched the voltages yet, just left it with stock voltages. I'm going to try Furmark now.

 

[t3chie]

Hello,
I tried to run Furmark. It didn't crash at all but the temp started to exceed 90C so I quickly shut Furmark off to prevent damage. Anything I can do now?

 

[t3chie]

Should I just RMA the card?