Assembled a Uniwill barebones and used an Intel P4 2.53 GHz CPU and provided fan and heatsink assembly. All works well except that the fan cycles off and on about once a minute. The manufacturer bios updates indicate that the fan shoud go on at 60 centigrade and off at 59 degrees. I've been trying to flash the bios with the downloaded files from the manufacturer but cannot figure out how to do it running windows XP. Help!