Civileme and Paul, Many, many thanks to you for your replies on my post yesterday. Thankfully I do not have the Southbridge686B problem chip and my BIOS settings were also not the reason for my crashes. Yes, my Etherexpress pro 100 is built into the motherboard (Intel D850GB). I was able to disable it in the bios and install a PCI Ethernet card. And guess what - the box is still running. So far I was not able to crash the PC with my previous tests. Due to the fact that I also had the problems with a ATI Mach 64 3D Rage II which sits in a PCI slots, I do not know if it is a AGP related problem. However, from the lspci output one can see that both use IRQ11 and therefore it is probably an interrupt related problem. My question now is: Can I configure (in the BIOS maybe) my AGP video and my onboard network card to use different interrupts in order to happily live together or do I have to stick with my extra PCI network card? If I have to get another card would not be the end of the world. Anyway, many thanks again to Civileme and Paul. Norman :-)
