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08-22-2011 11:11 AM
08-22-2011 11:11 AM
L2000 Down and Won't Boot Up
Hi
This morning our L2000 was down and we can't get it to boot up: The console is displaying:
ALERT LEVEL:14 = FATAL POWER OR ENVIRONMENTAL PROBLEM PREVENTS OPERATION
REASON FOR ALERT
SOURCE: 4 = POWER
SOURCE DETAIL: 4 = HIGH VOLTAGE DC POWERE SOURCE ID: FF
PROBLEM DETAIL: 0= NO PROBLEM DETAIL
I've attached a screen shot of the console.
All of the 3 power supply lights are green and fans are blowing.
Doing a PS in the GSP shows all power supplys normal
We've tried a complete power off (circuit breaker off) for 5 minitues and restart but getting same error.
Looking for any trouble shooting help, which is very much appreciated.
Thanks
Jeff
Things we've tried:
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08-22-2011 11:52 AM
08-22-2011 11:52 AM
Re: L2000 Down and Won't Boot Up
This could be an issue caused by a few things. The first thing I noted was that the Source ID is listed as FF, which is not valid. This could be a problem with the Platform Monitor card. There was an old version of this board that did not report problems correctly all of the time.
One thing you can try without needing any new parts is to bring the system down to a minimal configuration and see if you get results.
- Platform monitor
- Power converter
- System board
- PCI I/O backplane
- Display board
- Any single power supply (power supply 0 preferred)
- Any 7 fans (it is probably not necessary to remove a fan, however if fewer than 7 fans are installed the system will not remain powered up).
If this configuration changes the power symptoms, add components until you think you can determine a faulty one. Note, that when adding CPU's, be sure to add its corresponding Processor Support Module as well.
If this doesnt produce anything different, then look to replace the power monitor board. Look for a part number of A5191-69210 (-67210) (sorry I dont have a specific EDC to reference).
-Bob
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08-22-2011 01:01 PM
08-22-2011 01:01 PM
Re: L2000 Down and Won't Boot Up
Bob
Thanks for your reply. We also tried pulling alternate power supplies leaving just two in place without success. Is there anyway to tell if the power converted is bad? The fans initially turn on but shut right down.
Jeff
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08-22-2011 01:15 PM
08-22-2011 01:15 PM
Re: L2000 Down and Won't Boot Up
Its typically unlikely, as the converter really just passes AC voltage to the power supplies and doesnt change anything. You can check certain voltages at test points at the system board. If you are willing to do this, I can post the voltage points and expected levels.
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08-22-2011 02:13 PM
08-22-2011 02:13 PM
Re: L2000 Down and Won't Boot Up
What's keeping the power converter fans from running and power light from lighting? They initially come on for a couple seconds when the power button is pressesd?
Jeff
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08-23-2011 04:12 AM
08-23-2011 04:12 AM
Re: L2000 Down and Won't Boot Up
Tried a new power converter and also a new power monitor board last night with same results :(
We'll be looking for problem yet today.
JEff
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08-23-2011 07:11 AM
08-23-2011 07:11 AM
Re: L2000 Down and Won't Boot Up
Well, assuming you have ruled out all of the smaller components (CPU, PSM, IO cards, disks), you basically have two major assemblies left...the PCI backplane and the system board. I would suggest the PCI backplane, but in reality it could be either.
Also, note that to get the system board out, you have to remove the PCI backplane (however replacing the system board will change your SWID or "host ID". It will also change the serial number that is coded into the firmware. This can be corrected by HP if his affects your operations.
-Bob
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08-23-2011 07:43 AM
08-23-2011 07:43 AM
Re: L2000 Down and Won't Boot Up
Bob Thanks again for your help. Is the power monitor board the same as the PSM you listed?
I have not rulled out the smaller items yet. Looks like a long day today :(
Jeff
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08-23-2011 07:49 AM
08-23-2011 07:49 AM
Re: L2000 Down and Won't Boot Up
Sorry...the PSM is the Processor Support Module...sort of a voltage regulator for the CPU's. There is one PSM for every two CPU installed. if you have four CPU's and two PSM's you can easily troubleshoot these by removing two CPU's and moving around the PSM's.
if you only have 1 or 2 CPU's then remove the CPUs and the PSM and see if the system responds differently at power on (as in, stays powered on).
-Bob
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