Originally posted by: Mark R
Is there a pattern to the errors in memtest? Do the errors only appear during a specific test, or are only 1 or 2 tests affected?
If the errors are just random, or they appear only in a few tests, then it strongly suggests a defective motherboard. I've found that NForce2 based mobos are VERY fussy about RAM, and some manufacturers have rather lax quality control. I recently built a batch of PCs for friends and family specificially to make faultfinding easier - all the motherboards had this fault.
This is an ASUS P4P800 Deluxe. It's got the intel 865PE chipset. I would hope that ASUS has decent quality control. Maybe they don't, or maybe I got unlucky.
There is somewhat of a pattern. The errors usually start to occur at test 4, and continue for almost every test after that, although if you give it a few passes eventually the errors will occur on all tests. I have found a pattern to where the errors occur, too. With both DIMMs installed, the errors occur around the 450-510mb address range, and also the 960-1020Mb range. But with only one DIMM, this shifts and the errors occur in the 200-250Mb and 450-510Mb range. I don't know what that means, if anything. I can say with certainty that one DIMM produces many times more errors than the other.
I will try to test the RAM out on another system, but most of my friends aren't exactly l33t. I have a coworker who is into computers a lot, though. I'll try my best to get ahold of him.