I am glad to see that you have found the source of the problem. One of the hardware guys will have to answer the question as to the cause of the buggy dual channel. I wonder if it could be a BIOS seting? However the good news is your RAM is good and you can run in single channel without crashing.
My Computer
At a glance
Windows 7 Ultimate 32 bitIntel(R) Pentium(R) 4 CPU 3.00GHz2.50 GB RAMNVIDIA GeForce 7600 GS
- Computer Manufacturer/Model Number
- Home built
- OS
- Windows 7 Ultimate 32 bit
- CPU
- Intel(R) Pentium(R) 4 CPU 3.00GHz
- Motherboard
- ASUS P4P800-VM Motherboard Chipset: Intel 865G + ICH5
- Memory
- 2.50 GB RAM
- Graphics Card(s)
- NVIDIA GeForce 7600 GS
- Sound Card
- SoundMax Integrated Digital Audio (Chip)
- Monitor(s) Displays
- ViewSonic VX 1962 wm
- Screen Resolution
- 1680 X 1050
- Hard Drives
- Seagate Barracuda 7200.10 80 GB
ST380215A ATA Device 18.6 GB
Western Digital "My Book" external hard drive 750 GB
- Cooling
- Fan based
- Keyboard
- Microsoft Comfort Curve Keyboard 2000 v10 USB
- Mouse
- Logitec optic USB
- Internet Speed
- 3.01 Mb/s download 0.64 Mb/s upload