I'm trying to rebuild a computer out of a combination of old parts (AT case, Pentium 133 mobo in particular). When I start it up I get just a continual sequence of beeps about half a second apart. The monitor light stays yellow rather than changing to green, indicating there's no video signal. The behavior is unchanged even when I unplug all boards and peripherals except for the video card and keyboard. Possible causes I can think of are: - Defective memory (which I just bought) - Dead CMOS battery - Something shorted out on the mobo (which did at one time work for me) Clearly there's enough working intelligence on the mobo so that it at least can beep. Does anyone here know what message the beeps are probably sending to me? Paul