我刚刚对我的 Asus 280x DirectCU II 卡进行了 RMA，因为它无法输出视频。
RMA 把这张卡寄回给我，它在运行 BF4 时出现了一些小瑕疵，所以我怀疑 GDDR5 RAM 有问题。这是测试，但我没有可以与之比较的东西。我不确定这些错误是否能明确证明我应该退回这张卡。
MemtestCL 结果：
Test summary:
-----------------------------------------
50 iterations over 2048 MiB of memory on device Tahiti
Moving inversions (ones and zeros): 0 failed iterations
(0 total incorrect bits)
Memtest86 walking 8-bit: 0 failed iterations
(0 total incorrect bits)
True walking zeros (8-bit): 0 failed iterations
(0 total incorrect bits)
True walking ones (8-bit): 0 failed iterations
(0 total incorrect bits)
Moving inversions (random): 0 failed iterations
(0 total incorrect bits)
True walking zeros (32-bit): 0 failed iterations
(0 total incorrect bits)
True walking ones (32-bit): 0 failed iterations
(0 total incorrect bits)
Random blocks: 50 failed iterations
(52518052 total incorrect bits)
Memtest86 Modulo-20: 0 failed iterations
(0 total incorrect bits)
Integer logic: 0 failed iterations
(0 total incorrect bits)
Integer logic (4 loops): 0 failed iterations
(0 total incorrect bits)
Integer logic (local memory): 0 failed iterations
(0 total incorrect bits)
Integer logic (4 loops, local memory): 0 failed iterations
(0 total incorrect bits)
Final error count: 50 test iterations with at least one error; 52518052 errors total
Press <enter> to quit.
更新：使用较新版本的 MemtestCL 后进行测试
在https://github.com/ihaque/memtestCL（下载的zip里面已经有编译好的.exe，无需再编译）
Test summary:
-----------------------------------------
5 iterations over 2650 MiB of memory on device Tahiti
Moving inversions (ones and zeros): 0 failed iterations
(0 total incorrect bits)
Memtest86 walking 8-bit: 0 failed iterations
(0 total incorrect bits)
True walking zeros (8-bit): 0 failed iterations
(0 total incorrect bits)
True walking ones (8-bit): 0 failed iterations
(0 total incorrect bits)
Moving inversions (random): 0 failed iterations
(0 total incorrect bits)
True walking zeros (32-bit): 0 failed iterations
(0 total incorrect bits)
True walking ones (32-bit): 0 failed iterations
(0 total incorrect bits)
Random blocks: 0 failed iterations
(0 total incorrect bits)
Memtest86 Modulo-20: 0 failed iterations
(0 total incorrect bits)
Integer logic: 0 failed iterations
(0 total incorrect bits)
Integer logic (4 loops): 0 failed iterations
(0 total incorrect bits)
Integer logic (local memory): 0 failed iterations
(0 total incorrect bits)
Integer logic (4 loops, local memory): 0 failed iterations
(0 total incorrect bits)
Final error count: 0 errors
Press <enter> to quit.
答案1
我确信你看到的错误是错误的。
“随机块”测试看起来有缺陷。考虑到随机块测试失败的严重程度，我预计至少其他一些测试也会失败。然而，所有其他测试都顺利通过。
如果对一张实际上完好的卡进行 RMA，那将是一种遗憾。
更新
查看此论坛帖子这与 Tahiti 上的随机块错误有关 - 与您的问题完全相同：
该问题似乎是 memtestCL.exe 中的一个错误...
看来 Windows 版本也受到了影响：
我在 Win7 x64 上对我的两台 6850 进行的相同测试均失败...
我不知道您正在运行哪个版本的 MemtestCL，但考虑到它所需的维护很少，我认为 MemtestCL 有问题，而您的卡实际上是完好无损的。