[CentOS] Issues installing x86_64 5.1 on Ultra 40

> Try "acpi=noirq" as a kernel argument. Some AMD chipsets have problems
> letting the OS know what irq the 8250 timer is on, the nvidia one is
> definitely a problem, I have the same chipset in a couple of Dell
> Dimension e521 desktops :-(

Alright, this didn't solve the issue either.  So far:

  - noacpi noapic (No effect)
  - New SATA drive (No effect)
  - acpi=noirq (No effect)
  - BIOS update to 1.6 (No effect)

Grabbing a copy of RHEL 5.1 now and we'll throw this over to RH support
I guess and file something in bugzilla over there.

Gotta be something funky in sata_nv.

Thanks everyone for your responses.

Ray