Hi folks! Thanks for your earlier replies about Brahms and his console! My guess is that the POST is failing - I hear a couple of whirr-clicks as the tape-drive is tested, the disk-drive spins up, and then a chime (?!) and then "...all the rest is silence". The LEDs at the top of the CPU case read as follows: LED with single dot under it: Green LED with three dots under it: Orangey-red LED with SCSI(?) symbol under it: blank LED with DDS symbol under it: blank On the CPU card itself, the "Term power" LED is on, and the "SCSI self-test" LED is off.