Using Debian and I have 2, LSI 9207-8i's. About a week ago, my Seasonic power supply had a catastrophic failure. It was powering a Rosewill RSV-L4412U chassis. Luckily, nothing was damaged except for the 3 drive cages. The drives inside (mdadm RAID 5 array) were AOK as was everything else. I think.

I replaced the drives cages and am back up and running but during the boot process, I see this displayed on the screen for about 5 or so seconds then the system continues the boot process and everything works as expected:

I don't know if it's always had this delay during boot since it's my backup server and I never really watch the output on the monitor during startup. After I put everything back together, I was sitting in front of it watching the boot process and noticed it 'hanging' there for a bit. I have a 9207-8i in another system and don't see this delay during the boot. Any ideas or think it's normal for it to hang there for a few seconds at boot on that line?

Your first paragraph is gibberish, really. Nobody's familiar with the specs of those devices, or bothered to look them up.

Making a few giant leaps of the imagination, this is some server where the pc-type PSU has died. You're worried about collateral damage.

Voltage leaks across the PSU transformer are designed out. Failure of the main switching element procuces at most 1 minor enough pulse. An open circuit capacitor simply reduces smoothing, as there is redundancy. Faults may appear, but it's rarely catastrophic.

I would think the most likely scenario was that a drive bay failure(s) may have taken out the power supply. Put it back together and stop reading terminal notices for a while.

Perhaps you can dig out a little more information with the command below: