Well I hate to break it to you but it's just a rack mount POS being that old. It will cost you more money to FIND an OLD motherboard to support that PIII and then the memory... you can't use the ECC memory is some el cheapo motherboards. your best bet is to sell that sucker on ebay, and put the money towards a low end dell workstation for $350 and then add storage to it. Even the cheapest, slowest, crappiest, junkiest, worst (you get the idea) modern box computer will run circles around that old PIII setup. Besides just for storage and data backup you don't need much horsepower at all.