hi i am working on an hp a630n it has xp,512 ram , 2.8ghz ,160meg hard drive,sata.
the problem i am having is boot up , it won't boot to anything not even bios, i did get it to boot once when chatting with hp support they told me to check if it showed the hard drive which it did'nt so they told to unhook sata cable then hook it back up then reboot then nothing.

any help or ideas