I have a particular problem: when I try to compile a C/C++ file the whole systems stops (no network, mouse, etc)

I replaced every part of the system (CPU, Memory, motherboard, Hard disk, video card) and
I get the same result (which points to a software problem)

Currently specs:
Biostar NF4ST-A9
550W power supply
Atlon x64 +3800 (dual core)
NVIDIA video card (6600, same problem issue with the NVIDIA video drivers and non NVIDIA drivers)
160GB SATA (Maxtor)
2 GB memory (Viking)

OS Suse 10.1 (tried 10.2 system is not stable, 10.3 system is unusable)

Any suggestions to how to proceed and find what the issue is? I configured syslog to log into another machine; I found out that I have processing for about 5 seconds before the system freezes, but nothing in the log. I run memtest for one day and no memory issues, when Using 10.1 I can develop java applications (which as everybody knowns are big in resources (the IDE alone takes 450GB, the app server another 300GB of memory) but I do not have any freezes

Thanks