With Hard drives run hdtune read drive smart info for any warnings. Run vendor drive fitness test. Check that the hp bios on the mb is up todate and the hp bios not the issue. As you said you had some bad ram did you replace it??? there are programs like ami diags that test the CPU and mb to see if there issue with the CPU.
Thanks for your help. Yes I did replace the bad ram, now it has 1.25 gb ddr. The bios is ver 3.15 from 10/19/2005 (current per hp website).
I'll download hdtune and ami diags and see what they say.