If your card is working great can you please post the output of MemtestCL. it's kind of like a memory test for GPU
https://simtk.org/project/xml/downloads.xml?group_id=385Both my Sapphire R9 290X with Elpida Memory chips throw lots of errors
The errors are in
Random blocks TestRandom blocks:
985 errors (0 ms)
Test iteration 6 on 128 MiB of memory on device 0 (Hawaii): 0 errors so far
Moving Inversions (ones and zeros): 0 errors (0 ms)
Moving Inversions (random): 0 errors (16 ms)
Memtest86 Walking 8-bit: 0 errors (31 ms)
True Walking zeros (8-bit): 0 errors (16 ms)
True Walking ones (8-bit): 0 errors (15 ms)
Memtest86 Walking zeros (32-bit): 0 errors (78 ms)
Memtest86 Walking ones (32-bit): 0 errors (63 ms)
Random blocks: 985 errors (0 ms)
Memtest86 Modulo-20: 0 errors (171 ms)
Logic (one iteration): 0 errors (0 ms)
Logic (4 iterations): 0 errors (0 ms)
Logic (local memory, one iteration): 0 errors (16 ms)
Logic (local memory, 4 iterations): 0 errors (0 ms)
You will always get errors because the original memtestcl is broken... you should use the fixed one from svn.