KerryLloyd

Having removed the heat sink from the GPU, the numbers on the GPU refer to a gts450 rather than a gtx960. There are also 4 2 gigabit ram chips on the board, again confirming it's a 1 GB gts450. Got a full refund without any quibbles.

Update, now run the 2009 benchmark. Ran fine with the basic test, but crashed under the extreme test on the first attempt, completed on a second go. After some more research, looks like I bought a fake card.

In answer to the questions above, it's a new card, and while I have not tested it to any great extent, I have run one other program without any issues, and it does have the 6 pin pci-e power connected. I've also replaced the 500w cheap power supply (which should have been able to handle it but went pop after two hours) with a Corsair 650w PSU which should be able to handle it no problem. I'm suspecting the card itself is more likely, though asked on here in case there is a known issue with the GTX 960 and SL viewers. Incidentally, it affects SL viewer AND Firestorm exactly the same way.

I've been running SL without any issues for some time with an AMD A8 6600K APU and an R7 250 2GB graphics card. However, I have recently upgraded my graphics card to a GTX 960. Since then, SL will run for a few minutes then locks up for a few minutes, then either shows a white screen or closes and restarts itself. I've double checked my drivers are up to date and even formatted my HDD and done a clean installation of Windows 10. Not done much else with the PC since installing the card, but would anyone have any suggestions other than binning my new graphics card and going back to the R7?