A7N8X DELUXE memory issue (Ben you there?)

Hi,
Ben, I hope you read this,
I have the above MOBO with memory from a company called Komusa, they have a
great reseller rating at resellerratings.com and I bought a pair of copper
heat sinked 512 meg sticks of PC-3500 memory for my MOBO and am running a
Barton core 2500+ at 200 MHz FSB so I have essentially a 3200+
Here is the prob. every now and then (maybe 1 out of 5 boots, and almost
always after running some damn game that locks the system up) I get the
voice at boot that says "system failed memory test, system now booting from
operating system" and everything works fine. I have run memtest86 on it
over-night and no memory errors are reported.
Here is the machine config:
A7N8X DELUXE (bios 1007)
2500+ Barton core@ 200MHz FSB
Memory running at same, in "optimal" not "aggressive"
450 watt allied pwr supp. (I do not think this is the prob.)
1 gig of Komusa matched 512 meg copper heat sink mem.
1 CD burner
1 DVD drive
1 CD-Rom
1 80 gig Maxtor (boot w/ 8meg cache)
1 80 gig WD (8meg cache)
1 120 gig WD (8meg cache)
the 80 gig WD and the 120 gig WD are running on a second controller that
came with the 120 gig drive, it's a promise ATA-133 controller
card.......(and speaking of that, drive access seems slow, but that is
another story)
6 fans including 2 in the power supply and the cpu fan
using onboard sound
after monitoring the temps and voltages I do not think that the problems lie
there, and I have run memtest86 and another memory tester, both over-night
and neither report any errors of any kind................This board was a
"refurb" from Newegg, could the board itself be bad? If so, it is under the
factory warranty from ASUS.
Anybody got any ideas?
Thanks
Bitsbucket



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