ACPI Lockups

[Steve Eclipse]

I've been having occasional lockups that the system log reports as ACPI
related. I understand that this is a BIOS issue. The MB manufacturer has
discontinued support, and will not be issuing any further updates. I know
that I can disable it in the BIOS.

How can I change XP Pro to not use ACPI? (I changed it in the bios and XP
would not boot)

Under device manager it shows the PC as a ACPI computer. How can it be
changed?

STEVE