On 21/02/07, Joe Kazura <joe.kazura at unh.edu> wrote: > This is my first post ... I *HAD* been trying to get RHEL AS 4 onto this > Dell PE 6400/700, but it just wouldn't go without some weird tweaking. > > A reboot (or shutdown -r now) follows through to " ", but the machine never > restarts - it appears to freeze (num-lock works, key-caps does not and > Ctrl-Alt-Del does nothing) - I have to press and hold the power button to > force a restart. Have you tried booting the box (and then rebooting) with one/some/all of the various APIC/ACPI options? e.g. "noapic noacpi apic=off acpi=off"? And is your BIOS firmware up to date? Will.