HI, Yeah cd rom has worked in the past. It stopped when I installed bigger harddrive and installed win xp. What I mean by stopped is, it wont play music cd. Maybe it is but I dont hear anything coming from it. Device manager says everything is working correctly. It also takes forever installing a game. It dont always take that long to install a game. Sometime it does. By the way, If u needed to know, My cd rom speed is 32x if that helps. It took like an hour just to get to 5% installation for a game. I tried using that same game in different computer and it worked just fine.I will contact the people from BIOS and find out mor einfo about the upgrades. I will get back with you on those infos. Thanks again!