Dead console?

I have a Hog 3 with b2773 on it.

Last weekend, I had an issue where the console would boot to the splash screen to select a show and then lock up with a "Unable to start: CPU5d" error (or something close to that). I did a full ISO and the console ran fine the rest of the weekend.

I've been off on vacation this week, but when the guys tried to start the console tonight, the screens stay dark and all 10 choose buttons flash and the console does nothing. I tried booting with the PIG button, but still get the same issue.

I brought in an iPC for backup this weekend, but does anyone have any possible info as to what it may be? The console does not move (permanent install) and is 8 years old. The current hard drive is approximately 18 months old.
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