[url=http://forums.nvidia.com/lofiversion/index.php?t8171.html said:
NVIDIA forums[/url]]Several of us have reported data corruption with nForce 4 based motherboards. I'd like to share my experiences with you. I hope nVidia's experts read this forum and finally offer us the right solution.
In short: some random data data corruption happens if a motherboard is stressed with DMA transfers (about 2 or 3 bytes altered out of ~5 GBytes). The operating system does not log any error.
You copy a file of some GBytes, you compare them e.g. with the "comp" command in a DOS window, and the two files wont be the same. You repeat comparing them: you may see different errors at different file offsets each time. It seems to be a random error.
You can reproduce this error under Linux, too, e.g. SuSE 9.3.