Here comes the sun, and I say

Here’s a little retroactive technical support, for those engineers and programmers who are living backwards through time.

If, while attempting to boot an early model Sun SPARCstation, you get the message:

Can't clear ESP interrupts: Check SCSI Term, Power Fuse.

then make sure that all SCSI devices are powered before turning on the SPARCstation. (In other words, turn on your CD-ROM drive.)