[CentOS] Hardware freezes on Dell Optiplex 320 while booting (https://bugzilla.redhat.com/show_bug.cgi?id=499204)

Steps tried:

Install from centos 5.5 x86_64 disc, locks up after reboot at GRUB (FAILS)

Boot centos 5.5 x86_64 install drop to shell and chroot (WORKS)

Boot fedora 13 isolinux disc, choose boot hard disk, launches centos 5.5 grub
(WORKS)

Compiled and installed grub package from fedora 13 on centos 5.5 x86_64 same
problem. (FAILS)

Boot fedora 13 isolinux disc, choose boot hard disk, launches newer grub
installed on centos (WORKS)

Installed fedora 13 x86_64 default settings for disk layout.  (WORKS)

https://bugzilla.redhat.com/show_bug.cgi?id=499204

Looking for advice on getting this hardware to boot unattended.

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- Jason Pyeron                      PD Inc. http://www.pdinc.us -
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