@KennyR
For BSOD to happen within Windows XP, some of your kernel level drivers/files/hardware is considered unstable.
From my experience with our work server (which stores the application source codes), our up-time is 99.9 percent. We run Windows NT 4.0 Server on Pentium 4 @ 1.6Ghz, Intel 850 chipset (genuine Intel built board) with 1Gb RDRAM.
From my personal experience, I haven’t encountered any BSOD with ASUS A7N8X Deluxe**** (Rev 1.04) /AthlonXP combination, but I did encountered serveral BSOD with MSI-6330** (with BIOS V3.1**) (VIA KT133A class chipset). Both set-ups have at least 512Mb RAM.
**VIA audio/driver issues. BIOS updated to V3.6.
****BIOS versions from 1002 to 1004 (400FSB support).