I have exactly the same problem. 512Mb Kingston PC3200 memory and the voice
reporter would give me an occassional memory error at startup. I switched on
the full memory test at POST in the BIOS and have never had an error
reported during that test. The machine is stable (enough) in day to day
operation to rule out a bad stick so I turned the voice reporter off. I'd
love to know if there's a bios revision planned to fix this!