HP DL380 G7 has to sit off for an hour after shutdown before it will turn back on

Shut down an HP DL380 G7 for updates. It would not power back on. All lights on the back were on, I could reach the iLo card (Not Configured) but the server would not spin up when the power button was pressed. I pulled the server from the rack and took it to the shop, that took about an hour. The server booted? I completed updates and thought I would shut it down to test the situation.

The server would not boot. Initially the fans would start to spin and the drives would flash in sequence blue, orange green I believe and then it would attempt to cycle again never actually booting. Not the server just will not power up. Any ideas or assistance would be appreciated.
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slipserviceAsked:
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Jason RybergTechnical Consultant IVCommented:
Can you attempt to configure iLO?  This way you could at least see hardware logs.
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rindiCommented:
There are two situations where I have seen a similar behavior. The first is when the CMOS battery is dead, and the other are bad electrolytic capacitors. Those capacitors can be on the mainboard and the PSU. So visually check the mainboard for signs of cracking, bulging, or leaking capacitors. Also replace the PSU's if you have any spares.
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