bought a megaRUM II motherboard with 2xPIII600s/Gig of SDRAM/IDE CDROM and Floppy, all cased/fanned and PSUed up. Booted up w/o any HD, went into bios, saw that cd drive was being detected on secondary master then shutdown. Attached an old 4GB drive i pulled out of an old g3 mac, booted into bios, HD go auto detected on primary master. shutdown machine. stuck a multi processor version of NT4 into cd drive and proceded to install OS. went through to the first screen, proceded through the process in normal fashion (something i have done about 20 times), chose to format as FAT32, sent it on its way. 15 minutes into the install it gave me a blue screen...being a common site, i didnt take note of any of the error messages and instinctively performed a reset. tried to start the install again but the bios could no longer detect either my HD or CD??? Gone thru all the obvious ie bios flash, ide lead direction check, HD/CD test elsewhere, CMOS drain, removal of IDE devices and reboot - then attach and bootup again, but nothing seems to bring back my dissappearing IDE devices. I am not very PC literate (this is my first PC, i've always used macs up to last week), so please can any instructions be explained in laymans terms. Thanks for being interested enough to take the time to read this long post, but i thought it better to disclose everthing now rather than trickle the information gradually. Good Luck, ive been told by a friend who deals with this calibre of mainboard for a job that it is a tricky one!!