[Info-vax] rx2620 power supplies / VRM voltage low

[George Cornelius]

Anyone else had problems with rx2620 power supplies?

We have been helping someone in-house who has a laboratory
instrument with attached rx2620 and no hardware contract.

We are not hardware support people but got him around his
last two hardware problems - bad scsi cable, (soft?) ecc
errors that appeared to be interfering with boots - but
he now has chronic power issues.

The iLo MP shows a message like "VRM non-recoverable voltage
low - check all boards at this address".  VRM's - voltage
regulator modules - are on the motherboard and generate
regulated voltages from the output of the power supplies.

Swapping out the power supply resolves this.  Over and over
again.  We get about a month out of a supply.

Just recently tried inserting two supplies (these are used/
refurbed, with 90 day warranty).  One of these died within
a day or so - different error, indicating defunct supply.

Soon after - replacement supply not yet in - VRM voltage
low error returns.

"Check cards with this voltage" is troubling.  I would
be tempted to pull out the storage array card - replaced
by a new one from the vendor when the scsi issue arose -
but hard to run without the application's storage and
it would appear the supplies really have gone bad.

Decoding the message to determine which voltage it is
 is problematic.  An HP person on one of their forums
seemed to state that it is HP proprietary and such
problems _must_ be turned over to HP Support.

Ideas?

Don't ask why they won't pay for support.  Something
about the instrument being due for replacement. Research
funding goes through cycles and sometimes they're
pinching their pennies.

Oh - and did I tell you we have no Itanium experience?

George