EFI shell prompt not coming up after hardware changes

[alex1982]

Hi,
I recently installed additional memory on HPrx6600 server.After inserting the slots, and powered on the server again, it looks like the system is not booting, because EFI shell prompt is not coming up.

I removed the memory slots and reset the memory configuration as it was, and the problem continues to persist.The EFI shell prompt is not coming up.

Any ideas on what might be the cause, and how to solve this problem.
Thank you in advance.

[Matti_Kurkela · Accepted solution]

Are the front panel LEDs indicating the system is OK, or is there a fault indication?
Does any of the LEDs of the Diagnostic Panel light up when you attempt to power on the server?

Does the iLO MP work? If it does, check its hardware error log (command SL).

LED locations and meanings:
http://docs.hp.com/en/AB464-9003C-ed7/ch01s03.html

Troubleshooting procedures:
http://docs.hp.com/en/AB464-9003C-ed7/ch05.html

"It's all in the manual."

MK

[alex1982]

The System Helth led is red when the power is turned on.No led is illuminating on the diagnostic panel.On the rear panel, the power led is green and also the ILO leds are green.It seems OK.
I checked the System Event logs, block by block and three type of events are coming up.
Those of power being swithed on and of.
The "Chases is Open" event and there is only one fatal event :"Boot not detected".

[alex1982]

I powered off and on.Now, the system health led is not illuminated and is not red anymore.The Internal health led is not illuminated.The external health led is green.
I see the system event logs, and all the alerts are of level 2.There is only one alert of level 7 :Boot_not_detected.

Thanks

[alex1982]

The links provided solved my problem.
Thank you