HP ZE4600 Boot Issue

I did my best to make a generic title above.

The issue I have here is that the hard drive in the HP ZE4600 (AMD version) is not being recognized in the BIOS, however does work. If you boot from any other media (Windows installation CD) you can install to the drive, can access it in recovery console, can run chkdsk, make and delete directories, it is fully functional. The problem is that not being recognized by the BIOS prevents the computer from booting to the hard drive.

My first idea was a bios flash, but HP makes available an inside windows version, and a boot floppy version. The laptop does not have a floppy drive so the latter is out of the question.

Online I found a suggestion, so I tried to flash the bios by disassembling and removing the CMOS battery for a few hours, but that didn't do it.

My current bid is using BART PE to boot from a CD and run the windows version of the software, however it also is not running there, it crashes and gives an error about not being able to access files.

Anyone else experience a similar issue, or know what can be done to fix this?

Current BIOS is 1.59 the upgrade is the 1.73 that is on the HP website.