Re: V20z Refuses to Power On

From: Damian Wiest (dwiest@vailsys.com)
Date: Thu Jan 18 2007 - 14:14:30 EST


Sun Field Service Engineer tracked the problem down to a bad memory
voltage regulator module.

-Damian

On Mon, Nov 20, 2006 at 07:37:42PM -0600, Damian Wiest wrote:
> Greetings all,
>
> We've got a Sun V20z that crashed and now refuses to power on. Once the
> service processor has completed booting, the front panel display
> indicates "Main power off". Neither pressing the power button on the
> front-panel, nor performing a "platform set power state on" after
> SSH'ing into the service processor does anything; in the second case,
> the command never returns.
>
> We've tried resetting the boot defaults per the instructions on page 43
> of the Troubleshooting Techniques and Diagnostics Guide, but this had no
> effect. We also cleared the CMOS with the same result.
>
> We moved the CMOS jumper to the TH48 pin set and ran the manufacturer
> diagnostics from the front-panel. Diagnostics hang on
> "Iter: 0000000809". We turned the power switch off, back on and re-ran
> the diagnostics; they passed this time and the LEDs on the system board
> came on. Powered off and on again and diagnostics hang in the same
> spot; we repeated this a few times and diags keep hanging.
>
> Can someone tell me where I can find information regarding the
> manufacturer diagnostics? None of the printed manuals I've consulted
> mention this feature.
>
> Any ideas on what the problem may be or how to get this server powered
> up?
>
> Thanks!
>
> -Damian
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