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Conference ssag::ask_ssag

Title:	Ask the Storage Architecture Group
Notice:	Check out our web page at http://www-starch.shr.dec.com
Moderator:	SSAG::TERZAN

Created:	Wed Oct 15 1986
Last Modified:	Fri Jun 06 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	6756
Total number of notes:	25276

6518.0. "AS4100 test cpu3 fails" by LOTIMA::P_MORRIS () Wed Mar 26 1997 08:17

        Hi
    
        Has anybody had similar problems to the following:-
    
        Config is:-
    
        Alphaserver 4100 Rackmount
        =========== ==== =========
        4 x 300Mhz CPU Part no:B3002-AB
        4 x 128Mb  MEM Dataram MEM DEC equivalent = B3020-CA
    
        SRM version is 3.0-10 (V3.8 CD)
        System is running Digital Unix V4.0A
    
        in this config power test is OK
        test cpu0...OK   test mem0...OK
        test cpu1...OK   test mem1...OK
        test cpu2...OK   test mem2...OK
        test cpu3...FAIL test mem3...OK
    
        If CPU3 is removed everything is OK.
    
        Alternatively if all 4 CPUs are fitted
        & MEM banks 2 & 3 are removed,MEM0 & 1 installed ALL OK
    
        If all 4 CPUs are fitted & MEM0 ,1 & 2 fitted
        the machine fails  the test cpu3.
    
        The CPUs have been cycled around & the CPU/MEM motherboard
        (54-23803-01) has been replaced,made no difference.
    
        The test_mem variable is set to full.
    
        We are currently trying to resource 8xB3020-CA to make the machine
        "totally DEC" instead of using the DataRAM memory,but I'm not sure
    	thaT this is going to make any difference.
    
        Has anybody got any ideas ???
        All help gratefully received
    
        I have cross posted this note in the Alphaserver 4100 notes
    	conference note 547
    	
    	Regards
    
    	Phil Morris

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Name Date Lines

6518.1 EPS::VANDENHEUVEL Hein Wed Mar 26 1997 10:08 23

T.R	Title	User	Personal Name	Date	Lines
6518.1		EPS::VANDENHEUVEL	Hein	`Wed Mar 26 1997 10:08`	23
	>>> -< AS4100 test cpu3 fails >- <PINCH> 'yup, I'm awake. And this _is_ the Storage work conference. This topic does not appear to belong here. Perhaps a moderator, or the author should delete it? > The CPUs have been cycled around & the CPU/MEM motherboard > (54-23803-01) has been replaced,made no difference. Sound like the problem did not travel with the CPU boards, but was related to the slot being used. > If CPU3 is removed everything is OK. : > & MEM banks 2 & 3 are removed,MEM0 & 1 installed ALL OK Now it starts to sound like a marginal backplane or power suply? fwiw, Hein.

    
   >>>                       -< AS4100 test cpu3 fails >-
    
    <PINCH> 'yup, I'm awake. And this _is_ the Storage work conference.
    This topic does not appear to belong here. Perhaps a moderator, or
    the author should delete it?
    
  >      The CPUs have been cycled around & the CPU/MEM motherboard
  >      (54-23803-01) has been replaced,made no difference.
    
    Sound like the problem did not travel with the CPU boards, but
    was related to the slot being used.
    
 >       If CPU3 is removed everything is OK.
  :
 >       & MEM banks 2 & 3 are removed,MEM0 & 1 installed ALL OK
    
    Now it starts to sound like a marginal backplane or power suply?
    
    fwiw,
    	Hein.