Card is back at supplier who have informed me they'll need to run tests on it (fair enuff) and if fault is NOT replicated, Ill be charged $49 (on a $200 card).
I'm going to run multiple tests on RAM etc tonight to ensure no fault there, but quick test I did few days ago was clean. Anything else I should consider ?
Below is what Ive sent them so far :
Windows 7 SP1 :
PC running fine all day, next morning system was locked up. Rebooted and got a BSOD "Thread stuck in device driver" (remoted home just now to check logs) - Google results indicates either driver issue or video hardware.
Reinstalled drivers, no change.
Reinstalled Windows 7 from scratch, system would lock up - eventually logs me in where I install latest ATI drivers, but system still continues to BSOD/lock with same error. Removed R7 card, installed older ATI card, system is stable. Updated Windows 7 completely, no BSOD/lockups.
Installed R7 card again, same issue again with the BSOD.
Removed R7 and switched between using older ATI and onboard video, no problems encountered.
Upgraded to Windows 10, no issues with older ATI or onboard. Installed R7 card with Win 10 drivers from ATI (15.7.1) , BSOD again.