Ok.....I have 6 systems at the moment with Soyo's 5EMA+ socket 7 motherboard. They all have different configuations, different types of memory (brand and speed), different amounts also, different CPU's ranging from 350-500 (all k6-2), different video cards, and different network cards. They all have 250 watt power supplies and enough fans to cool them just fine. I have upgraded them to Windows 2000 and I have random reboot problems. Sometimes it won't reboot for a couple of days and some days it will reboot 6 or 7 times in a day. I have narrowed the problem down to the motherboard because when I replaced one with the Asus P5A the problem dissapeared. It's been running stable for over a month. I talked to Soyo tech support.....and wow.....they were absolutely no help. Imagine that. I have also installed service pack 2 for Windows 2000 thinking that would correct it but it didn't. I have been on every forum I can search with no luck. I have also searched Microsoft's web sight....again..no luck. Also, I believe all of the motherboards are revsion 1.1......but there may be a 1.0 in there. This problem did not exsist with Win98, and I need to upgrade a total of 50 PC's. Any help would be greatly appreciated. Thanks.