System Intermittently Reboots and Possible Memory Problems

[TheWanderer]

The system intermittently reboots. When the system
recovers, it asks to report the error. Some of the errors
are due to a "device driver" although it's hard to
diagnose. Other errors have been due to what appears to
be a "memory" problem. When reporting the problem, the
Microsoft web page suggested that I download the
Microsoft Memory Checker and I did. When running the
test, I ran the standard and then extended test.

First, my set up:
OS: Windows XP Home Edition, SP1 with all the latest
critical updates and drivers.
Hardware:
Board: ASUSTeK Computer INC. A7N8X2.0 REV 2.xx
Bus Clock: 166 megahertz
BIOS: Phoenix Technologies, LTD ASUS A7N8X2.0 Deluxe ACPI
BIOS Rev 1006 08/19/2003

CPU: 1.85 gigahertz AMD Athlon XP; 128 kilobyte primary
memory cache; 512 kilobyte secondary memory cache

Memory: 1024 Megabytes Installed Memory
Slot 'DDR1' has 512 MB
Slot 'DDR2' has 512 MB

RADEON 7500 SERIES [Display adapter]

Silicon Image SiI 3112 SATARaid Controller
WinXP Promise Ultra133 TX2 (tm) IDE Controller
NVIDIA PCI to USB Enhanced Host Controller
Standard OpenHCD USB Host Controller

Here are the memory test "failures":
Test Cache Address Expected Actual
LRAND on 0348Fc0 bb90b81e bb10b81e
WSTRIDE-6 on 01435a80 80808080 80008080
WSTRIDE-6 on 01435a80 80808080 80008080
ERAND on 00a85f80 90b02f65 90302f65
ERAND on 0cc65f40 009098e8 001098e8
ERAND on 0d9e5fc0 91c0270c 9140270c
ERAND on 0a58dd80 3680aad1 3600aad1

Can someone out there help?
Thanks!

 

[RobD]

You have a flakey bit on one of the memory modules. The first thing I would
do is relax the memory timing if there is room left. You could also try
increasing/decreasing the memory voltage a notch or two. If nothing seems
to help, you may need to replace one of the modules.

- Robert -