I have installed a new motherboard (Chaintech 5AGM2), an AMD k6-2 400MHz and a Diamond Speedster A/50. When I connected everything and booted the system at first I got an error message "Windows protection error IOS .." I tried again I was able to get in the safe mode. but my floppy drive and CD ROM were not recognized anymore. I disconnected the floppy and connected again nothing worked. I can hear the floppies to run but not recognized. So now I can start windows and cannot reinstall windows again.