append="apm-power-off"
You don't need this line, also it should be apm=power-off and notice it's in the above line, so remove this line.

What I would do is make a copy of the original appends line and comment the original line out, the reason I like to do this is in case things are worse after your fix than before you can uncomment the old line and comment out the new line, and easily have things the way they were. Edit the appends lines so they are:
#append = "hda=scsi hdb=scsi hdc=scsi hdd=scsi hde=scsi hdf=scsi hdg=scsi hdh=scsi apm=power-off noapic"
append = "hda=scsi hdb=scsi hdc=scsi hdd=scsi hde=scsi hdf=scsi hdg=scsi hdh=scsi apm=power-off"
Make sure your editor does not wrap the appends line, remove noapic from the end of the non-commented line, rerun lilo and reboot and see if that helps.

HTH

rock