Armbrust, Daniel C. wrote: > Does that acpi stuff have anything to do with it? I tried adding the > force option to the kernel parameters, but it didn't change anything. Alexander Dalloz wrote: > No, ACPI fails as the BIOS is too old. FWIW, acpi=force overrides the age check. There *are* BIOSes from before 2000 that can do ACPI correctly, and rather more that can do them well enough that Linux can work with them. This system is an aging dual-processor box, and the only way I've discovered to get it to auto power down is by adding acpi=force to the kernel command line.[1] James. [1] OK: there are two other ways. I could always run in single processor mode, in which case APM could shut it down (APM doesn't work for SMP), or I can "fix" the kernel's age check. 2.6.9 gives you a kernel option for the cut-off date, which simplifies things. I am running the last BIOS for this motherboard. -- E-mail address: james | The sendmail configuration file is one of those @westexe.demon.co.uk | files that looks like someone beat their head on | the keyboard. After working with it... I can see | why!