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Conference mvblab::alphaserver_4100

Title:AlphaServer 4100
Moderator:MOVMON::DAVISS
Created:Tue Apr 16 1996
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:648
Total number of notes:3158

544.0. "Power supply #2 failure on reboot, but no supply #2 installed!" by KAOT01::B_CORBIN (dtn 640-7420 ) Mon Mar 24 1997 12:13

    I had a Field Engineer call me with a error message seen recently on a
    alphaserver 4100 on a reboot. The console reported a failure on power
    supply # 2 , At the console level they did a show power and supply
    # 2 showed failed.  One problem:  Their is no power supply # 2 on this
    system.
    It will boot and operate normally
    
    The engineer stated that they had SRM version 3.08, the OS was OVMS
    
    ANy comments, I can't find any reference to this problem in
    comet,notes,tima
    
    Brian corbin 
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544.1Try V4.8 console?HARMNY::CUMMINSMon Mar 24 1997 13:2416
Have not seen this one before. My belief is that this may well be related
to the problem described in note 515.*. if so, then upgrading to V4.8-5
or V4.8-6 SRM console should fix the problem. I assume the CPUs in said
machine are running at either 400 or 466 MHz? If not, then the problem
described in note 515 is likely not the issue here. If so, then try V4.8
console and let me know the results.

Finally, there is no such animal as V3.08 SRM console. Presumably, the
field engineer meant V3.0-10? Or did he mean V4.8-XX? Valid SRM console
versions are:

  V1.0-9              # early seeds, very first few revenue units
  V1.2-3 and -4       # V1.2-3 on V3.6 CD; V1.2-4 to fix HW issue
  V2.0-3              # V3.7 CD
  V3.0-10             # V3.8 CD
  V4.8-5 and -6       # V4.8-5 on V3.9 CD; V4.8-6 to fix 466 MHz HW issue
544.2exitKAOT01::B_CORBINdtn 640-7420 Wed Mar 26 1997 15:588
    Problem: found.
    
    On the origonal installation the optional power supply was installed in
    slot 1.  Only recently when a scsi card was installed did it complain
    about power supply 2 on boot..   Tech will move the optional 
    supply from  slot 1 to slot 2
    
    Brian 
544.3?NEMAIL::SOBECKYFacts,tho interesting,are irrelevantThu Mar 27 1997 12:0611
    
    Did moving the optional power supply from slot 1 to slot 2 actually fix
    this problem? I know that the installation order is 0,2,1, but I
    thought that was for optimal cooling only; I didn't think that it
    mattered to the firmware which order the P/S'es were installed. Also, I
    remember seeing a machine with the single P/S installed in slot 1, and
    the fw didn't complain about PS0 not being present.
    
    Can someone from the power or fw group comment on this?
    
    -john
544.4NEMAIL::SOBECKYFacts,tho interesting,are irrelevantFri Mar 28 1997 08:193
    
    One more thought is that the tech plugged the cables for PS #2 into
    PS# 1 and you really do have a bad power supply.