Check for Bad Capacitors on the power board. On some cheaper units, I've
seen them blown. On the better units, the capacitors do not blow up, but
start bulging. Check out Badcapsfourm.com for more info.

I had planned to go through the PS and check the ERS of the filter caps.

Is this a potential cause of the shut-down? Or is this simply a cause for the
SMPS to stop?

FYI, LEDs on some of the PCBs remain lit when the display and fans go off.
--
DaveC

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