What's wrong? 4 dead Sapphire hd 7970's in 1year

facadewithin

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Jul 17, 2014
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I am really wondering if there is something wrong with my PC. Built my pc about 1.5 years ago with parts ordered off newegg. I will list the specs at the bottom.

Pc ran fine for a while, then i started getting artifacts in my Sapphire HD 7970. Long story short, 1 year later, i now have RMA'ed 4 of these cards. Sapphire has been really nice and paid for shipping on 2, upgraded me to the HD 7970 vaporx(which is now having issues), and they are now upgrading me to the r9 280x toxic series(seems to have better reviews). To be honest their tech support has worked with me greatly and i appreciate it despite all that happened(could have been worse i guess)

I never ran into any issues before on a cheap old 40$ amd graphics card or on board graphics, but i have NEVER run into RMA'ing 4 graphics cards before. The first two had blown capacitors(never heard them blow, must have been while i was at work), and the third was a bad fan.

I am not sure whats going on?!?! Blown capacitors and bad fans point to manufacturers defects... but after 4 I am starting to wonder if somethings really wrong with my setup! The pc as a whole never breaches 60degrees Celsius, and as we speak the card sits idle at 47degrees, and never peaked past 65.

Can anyone please offer some thoughts? I really don't want to get this nicer card and then have it blow up on me for something that was maybe my fault all along?

Intel I7 3770k OC 4.2ghz stable
Sapphire HD 7970 Ghz edition(preoc)
Z77 ASus Sabretooth mobo
Samsung Pro 840 128gb SSD
NZXT Orang Phantom Nr001 wioth 2x200mmfans and 5x140mm fans with proper airflow design
G.skill 8gb pc1866 DDR3
Corsair HX 750w PSU
NZXT CPU fan havok something, can;t remember model(can dig for it if needed)
Win 7 Home(ability to go to win8 if needed)
1 dvi 24in monitor to 7970, and 1 hdmi 1080p 39" TV to 7970
 
Solution


The only thing that I can think of off the top of my head would be a fault in your PSU which results in overvoltage on the 12 volt rail supplying your GPU. However, the HX750 uses a single high current 12 volt rail so I would expect other components to die as well. Blown capacitors are as you mentioned typical of poor quality control. Absent some more evidence to the contrary I'd place this squarely on Sapphire.
 
Solution