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ML350 G4p - PPM error lights with second power supply installed

Steven Clark_3
Occasional Visitor

ML350 G4p - PPM error lights with second power supply installed

When I install a second power supply into a ML350 G4p, the warning lights for PPM1 and PPM2 light up on the motherboard. This happens whether or not there is a second CPU installed. If I then power the system on, it seems to work ok, and the CPUs test ok.

We've had a HP tech out and after being unable to resolve the problem the system was replaced, but the new system is doing the same. I've tried several power supplies, and they all give the same problem.

Even though the system seems to be working, I'm loath to give it to our customer when the system warning lights will come on as soon as he connects power to both power supplies.

Is this a known problem? Is there actually a problem on the motherboard, or is this something we can safely ignore?

*I have another ML350 G4p with an additional power supply coming through later today, I'll post an update here if it has the same problem.
8 REPLIES
Prashant (I am Back)
Honored Contributor

Re: ML350 G4p - PPM error lights with second power supply installed

Hi,

What about the health led on the server? Is that also amber in colour? Any error under IML for the same.

Prashant S.
Nothing is impossible
Steven Clark_3
Occasional Visitor

Re: ML350 G4p - PPM error lights with second power supply installed

The internal health LED is RED, the external health LED is amber. When the system is powered up, these lights both turn green.

There's no errors in the IML.

I checked another ML350 G4p, and it has the exact same problem.

Steve
azhar_2
Occasional Advisor

Re: ML350 G4p - PPM error lights with second power supply installed

Hi,

I have the same problem. Replaced the system board & did not connect any additional devices, cpu's , memory etc. Then started adding in the options & the system was working 100% till i added cache to the 6400 controller.Then the problem started again. Removed the cache but the problem persists.
Although once the server is booted no problems are encountered.....

Any ideas???
Bruno Mesquita_1
Frequent Advisor

Re: ML350 G4p - PPM error lights with second power supply installed

First you should check if Firmware is updated. If not do so.

Then consider replace the power supply backplane and if doesn´t work then the PPM modules.

Spares:
Power supply backplane / 365065-001
Processor power module (PPM) / 347884-001

Regards
azhar_2
Occasional Advisor

Re: ML350 G4p - PPM error lights with second power supply installed

Hi,

I tried all the following:
Updated firmware
Changed the psu backplane
Changed 2nd CPU & ppm,
Changed the system brd.

None of the this rsolved the problem.
hamidhp
Occasional Advisor

Re: ML350 G4p - PPM error lights with second power supply installed

hi
a have same problem with ml350 G4
i updated the firmware
i changed both of ppms
but when i install another power supply
some time system becom restarted randomly
or the warning light up for ppms
hamidhp
Occasional Advisor

Re: ML350 G4p - PPM error lights with second power supply installed

hi
didn't any solve this problem?
KiranKumar_2
Frequent Advisor

Re: ML350 G4p - PPM error lights with second power supply installed

HI,

you can try the following option.

1. Disconnect all the storage devices connected to the server (Including Internal Drives)
2. Change the status of Sw6 in System Maintenance Switch (ON)
3. Power ON the server for 10-15 Sec.
4. Turn off the server and set the switch to Normal (OFF)
5. Connect the drives back and power ON the server.
6. Check the light status...