Last month I had to upgrade from a GTX 1080 to a GTX 2080 super hydro copper as my GTX 1080 died. Everything is working fantastic and as expected from reading reviews. Recently I just got a bunch of new radiators for my build so after finishing my loop . My card was now running 15C cooler from its original 60C to a nice 45C I reapplied my OC of +70 on the core and +500 on the memory. I ran a few stress tests and pasted then (3dmark, real bench, superposition) and it wasn't until I decided to look into running something for a memory test that I run into problems as when I use programs such as occt, MemtestG80, and MemTestCL that my system completely locks as the screen "artifacts up". Besides I have had this card for close to 2 months now and have had no problems unless I use a VRAM stress test. The only way I can run said test is by downclocking the memory by -500.

The most frustrating part is I am able to load all 8GB of VRAM up and run the card under 100% load while not running into and problems. So is it software related or is it actually hardware related? Or does anyone have any suggestions for me?

And today I did every test and benchmark again and they all past. This was over 8-9 hours

Before I took the stock cooler off the thermal paste wasn't the best it may be worth a look .

CjGhost

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Did you put thermal paste on both the gpu die and block as I had this problem until I striped it down and redone the paste.

It came preassembled. So I did not put thermal paste on the GPU.

On second thought after reading your original post again, perhaps you had air in the block and it had a hot spot. Your model doesn't have memory temp sensors, right?