Upgraded to Asus R9 270x 4gb, Graphics heavy games crash system

Hardware GPU
1

I recently bought an Asus R9 270x 4gb GPU from newegg to play Wolfenstein the New Order. Though I could actually play for several minutes which was an improvement, Wolfenstein continues to crash during the dogfighting combat forcing me to hard reset. I assumed it was just a wolfenstein issue.Tried to play Witcher 2 and I get the same crash every time I load an old save

I upgraded to Windows 8.1 to download the beta amd drivers. Ive tried playing both games as administrator and in windows 7 compatibility mode. Same crashing. Had no problem playing Witcher 2 on high with previous GPU, HIS HD5830

I have verified the cache in steam and reinstalled both games multiple times. I just reverted to the previous driver 14.4 and i still have the same issues. Ran the Heaven Benchmark on high with medium tessellation and no issues.

I don't know what to do differently. 

Updated:

Specs:

Windows 8.1 Pro 64 bit

i7 930 2.8ghz

6gb RAM 1333

Asus R9 270x 4gb

Rosewill Green Series RG700-S12 700W

750bg 7200rpm & 2tb 7200rpm

 

2

PSU?

3

Wolfenstein has some serious issues with AMD cards for some reason. I have NVIDIA and have no problems, but after reading some problems with AMD cards, I put in a 280 and it would hardly work at all. And like Cloud asked, what is your PSU?

4

Updated OP

5

Have you updated to the latest motherboard BIOS? (not sure if that would be a cause for the problem)

6

I have. they havent changed since i got the board a year ago

 

7

I have come to believe the fault lies with my PSU.

8

My friend has the same problem with a saphire r9 270 x 2gb and a bequiet 500w psu.

Would interest me if you find a solution .