I have a custom built computer with an Intel D850MV motherboard, 2GB RAM (4 256MB 333Mhz RAMBUS RIMMS - two in bank 0 and two in bank 1). I am running Windows XP Professional and am getting lots of stop nerrors indicating Memory_Management. I ran Memtest86+ V4.0 on all four RIMMS, with each test using two RIMMS in bank 0 and two continuity RIMMS in bank 1. When tested, no memory errors were detected with any pair of RIMMS in bank 0. However, when a pair of tested RIMMS were added to bank 1 so that all four RIMMS were installed, Mtest86+ detects memory errors as soon as it gets to test 8 (modulo test). I am not sure how to interpret these results? Bad memory, bad motherboard, or something else? This has been a problem ever since I bought the computer, but I only recently have had time to work on it. I would appreciate any suggestions.