Memory problem

I think you're pretty much onto it. It could be the motherboards or more specifically the memory contacts. Or perhaps there's some sort of voltage problem and the motherboard is not supplying enough juice (or too much) to the memory. Best way to tell may be to try another memory module that you know for sure is good- if that one also fails the test in the system then you can be pretty sure that it's the mobo.

Can a memory module fail a memory test on one computer and then pass on another? Tested a matched set of 256 pc133 on a asus a7v-e and found one stick to be bad. Moved the bad stick between both dimm slots and still bad. Moved the good stick between both slots and was good.

Installed the failed memory module in a dell gx1 and it passed the memory test.

Could the contact points on the memory module wear out on one motherboard's dimm slots and be okay in another mb?

Meaning, does the mb's dimm slots vary in where they contact the memory pins? And does anyone think that this is what may have happened in this case?

There were no dust bunnies in the slots and the pins were clean on the memory.

I used memtest found on the ubuntu 6.06 disk that I have. Is there a better memory tester?