john, here are the POST diagnostic beeps for your computer :

One= Possible system board failure —BIOS ROM checksum failure

Two= No RAM detected NOTE: If you installed or replaced the memory module, ensure that the memory module is seated properly.

Three= Possible system board failure — Chipset error

Four= RAM read/write failure

Five= Real Time Clock failure

Six= Video card or chip failure

Seven= Processor failure

Eight= Display failure

So, there could be a problem either with the CMOS battery or the motherboard. Hope this helps, good luck.