Question diagnosing gfx trouble + can cards be serviced?

Sephnroth

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May 31, 2017
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Hi all,

I have a nvidia GTX 1080 and some time ago I started getting problems that I suspected were graphics related. Browser tabs would crash ("aww, snap!"), videos would fail to render, applications would just render black. Sometimes things would come back to life and sometimes it would be reboot time. Lately, sometimes, I've had BSODs too.

The more graphically intensive things going on the quicker it would happen and a reboot would always fix it and put it back to normal.

Until now. Today I rebooted, ran overwatch, got half way through first game and crash. I dare not play comp until I know what's going on! Maybe it isnt graphics card. But I suspected the gpu's ram was dodgy because if I did an iray render in daz3d that used it all the ram it almost always would kill it if i attempted a 2nd render, sometimes on the first.

The problem is I don't really know how to diagnose GPU problems. I've found a tool called memtestG80 which claims to test gpu ram but it's old. Anyway it finds tons of errors. I'll post the final 3 interations here, but any errors that occur always happen on "Random blocks" test. IF the ram IS bad on this thing.. what can I do about it? This card was a gift and there is no way I can afford to replace it like for like on my own right now - do nvidia service cards or anything?

Thanks for your help. MemtestG80 last 3 iterations:

Test iteration 48 (GPU 0, 1024 MiB): 93792 errors so far
Moving Inversions (ones and zeros): 0 errors (31 ms)
Memtest86 Walking 8-bit: 0 errors (172 ms)
True Walking zeros (8-bit): 0 errors (94 ms)
True Walking ones (8-bit): 0 errors (78 ms)
Moving Inversions (random): 0 errors (31 ms)
Memtest86 Walking zeros (32-bit): 0 errors (344 ms)
Memtest86 Walking ones (32-bit): 0 errors (359 ms)
Random blocks: 3947 errors (47 ms)
Memtest86 Modulo-20: 0 errors (1235 ms)
Logic (one iteration): 0 errors (15 ms)
Logic (4 iterations): 0 errors (16 ms)
Logic (shared memory, one iteration): 0 errors (15 ms)
Logic (shared-memory, 4 iterations): 0 errors (16 ms)

Test iteration 49 (GPU 0, 1024 MiB): 97739 errors so far
Moving Inversions (ones and zeros): 0 errors (31 ms)
Memtest86 Walking 8-bit: 0 errors (172 ms)
True Walking zeros (8-bit): 0 errors (94 ms)
True Walking ones (8-bit): 0 errors (78 ms)
Moving Inversions (random): 0 errors (16 ms)
Memtest86 Walking zeros (32-bit): 0 errors (359 ms)
Memtest86 Walking ones (32-bit): 0 errors (406 ms)
Random blocks: 0 errors (47 ms)
Memtest86 Modulo-20: 0 errors (1188 ms)
Logic (one iteration): 0 errors (15 ms)
Logic (4 iterations): 0 errors (16 ms)
Logic (shared memory, one iteration): 0 errors (0 ms)
Logic (shared-memory, 4 iterations): 0 errors (31 ms)

Test iteration 50 (GPU 0, 1024 MiB): 97739 errors so far
Moving Inversions (ones and zeros): 0 errors (16 ms)
Memtest86 Walking 8-bit: 0 errors (203 ms)
True Walking zeros (8-bit): 0 errors (94 ms)
True Walking ones (8-bit): 0 errors (109 ms)
Moving Inversions (random): 0 errors (16 ms)
Memtest86 Walking zeros (32-bit): 0 errors (390 ms)
Memtest86 Walking ones (32-bit): 0 errors (391 ms)
Random blocks: 0 errors (47 ms)
Memtest86 Modulo-20: 0 errors (1265 ms)
Logic (one iteration): 0 errors (16 ms)
Logic (4 iterations): 0 errors (0 ms)
Logic (shared memory, one iteration): 0 errors (16 ms)
Logic (shared-memory, 4 iterations): 0 errors (15 ms)

Final error count after 50 iterations over 1024 MiB of GPU memory: 97739 errors
 

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