Morten Torstensen wrote:
tblader wrote:
Thanks. I ran memtest86 off a knoppix5.1 cd for about 12 hours
on all four sticks. It made 6 passes and did not return any
errors. Perhaps I should have left it run longer?
I don't trust memtest86 for 64-bit mode kernels... I've seen examples
of it running just fine for days, when the kernel barfs after an hours
usage. It is just 2 machines, so not a large sample from my side.
Clocking down the memory helped in one case.
I do think a 64bit version of memtest86 would be a good thing... I'm
unclear how a 32bit app could test memory above about 3GB unless its
playing the PAE game (3GB because in a 32bit system, the PCI bus
peripherals take about the top ~ 1GB for their I/O space, so the ram has
to be mapped to a higher physical address, only accessible via PAE...
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