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After an unexpected power off (power cord unplug or main power breakdown), my server HP DL 380 G4 don't reboot POST. I just see hard drive led initialization blink and after nothing. But if I keep my server unplug during approximatively 12 hours, after I can power on and boot is OK. Someone can help me ? Thanks

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Have you contacted HP about this? – John Gardeniers Jun 28 '10 at 14:18

It was a problem on motherboard. NVRam lost configuration and don't accept to be cleared, even if I use the switch position 6. I replaced the motherboard and now all is good. Thanks for your help.

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Glad to hear it. – Chopper3 Jun 29 '10 at 13:54

If it has two power supplys, try to remove one of them.

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I tried, none effect, always the same result. – Vincent Jun 28 '10 at 13:54

Got a hardware maintenance contract? if so use it, if not look around for parts or a new server - I think something's popped, it'll be hard to diagnose without parts. Sorry dude.

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Yes, I have. Thanks. It's a good idea – Vincent Jun 28 '10 at 14:22

I believe there was an issue with HP ProLiant servers when the power had issues. This is from the US/Canada site but assume it applies worldwide.

HP Fix

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Thanks for your help, but my server reboot automatically, when it is right. In my case, it don't want to boot even if I push power button. – Vincent Jun 28 '10 at 14:24
    
I think I need more info around the question. Your serevr had an unexpected power out and then would not reboot until you had it off for 12 hours? Is that correct? – Dave M Jun 28 '10 at 14:55

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