The speaker on the mother board gives four beeps periodically.  Probably telling me something but I don't know what.  Didn't find anything useful on SOYO's site or booklet that came with motherboard. Hope you can interpret. 
Computer is home built. Motherboard is SOYO KT333 Dragon Ultra Platinum.  BIOS is A22A. CPU is Athlon 2000+/266. OS is XP SP 2. 
My first thought  was that it was heat related but SOYO's Hardware Monitor indicates CPU temp is 104F and case temp is 92F.  Three exhaust fans plus two on power supply and those on CPU and North Bridge all operating. Nothing feels even warm when touched. Beeps persist after scans with Norton AV, AD-Aware and Spybot S&D.

         PCBUILD maintains hundreds of useful files for download
                     visit our download web page at:
                  http://freepctech.com/downloads.shtml