" Simple question.
Will a P3 handle a 160 Gig harddrive?"
Yes. P3's can do that, but the BIOS must have been updated. But a BIOS is not a P3. A "P3" is just the CPU of the machine and this CPU is not limited in this respect.
There is an end run around a BIOS with a limited support and that is to put the drive in an USB 2.0 enclosure and use a compatible OS.
Also, the OS is an issue...
Will a P3 handle a 160 Gig harddrive?