Hi Gang, Thought I'd ask a simple question or two. I have here 2 Abit KA7-100 mainboards along with a KA7. They take the Slot-A CPU. On this latest board, if I re-seat the CPU several times I might be able to get to the windows desktop but then it freezes whilst emitting 1 continuous high pitched screech. Generally I take this as the CPU not being seated or bad. I can occasionally boot into safe mode (Win98SE)and play around in there for awhile with no troubles. I have checked all drivers, removed all hardware other than RAM, Vid, and Floppy but still showed the same symptoms. I have tried 3 different known good CPU's and for the most part only receive a black screen when I attempt to boot, no post, only the sound of the CPU fan and hard drive spinning up. They have all been using UPS's, good cases, and sturd y well-known power supplies. The CPU slot is clean and free of any debris. Am I missing anything? 1 board was supposedly DOA from purchase, 1 lasted a year, and the other has been going for about 2 years. Any suggestions or thoughts? I sent a message to Abit, but I have also dealt with them in the past. In my experience they are the absolute worst company to deal with. I quit recommending their products a long time ago simply because of lack of support. So I'm not holding my breath for a response from them. Sorry so long and Thank You for any replies. Feel free to reply off-list. David A. Abbe [log in to unmask] Visit our website regularly for FAQs, articles, how-to's, tech tips and much more http://freepctech.com