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Conference noted::decnis

Title: DEC Network Integration Server (DECNIS)
Notice:Please read note 1 to use this conference effectively
Moderator:MARVIN::WELCH
Created:Wed Sep 18 1991
Last Modified:Thu Jun 05 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:3660
Total number of notes:15082

3619.0. "2 MPC-III doa ?" by LEMAN::SCHEIDEGGER (Raymond @GEO - DTN 821-5236) Tue Apr 29 1997 08:51

Hi,

I have a HW problem with 2(two) MPC-III cpu card.

Customer has 2 DECnis and has order 2 MPC-III update.

o Update a DECnis from a  MPC-II card to MPC-III.

  - Power off
  - Use static protection
  - swapp CPU cards
  - Power on   
 
o Lights and display :

  - NO LEDs 
  - Just a dot "." on the display 
	-> Processor card has failed its module self-test

o DOA ??? Why not.

o Take the 2nd MPC-III card.
 
  same problem ...

  doa again ?

o MPC-II card back into the DECnis ... OK

Question 1 : Do we have to check revisions on Power Supply, 
	     Mem card, Backplane ???
Question 2 : Could we have a power supply problem ?
	     Does the II and III cards using same voltage ?

It's strange for me to have 2 doa cards.

Any other suggestions ?

Raymond Scheidegger
DTN 821-5236
    
T.RTitleUserPersonal
Name
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3619.1try theseMARVIN::HIGGINSONPeter Higginson DTN 830 6293, Reading UKTue Apr 29 1997 20:5221
Raymond,

No real idea but some thoughts:

1) is it a 500 or a 600 (power supply issues with 600's are very rare).

2) plug a terminal in at 9600 and see if it even outputs the rom
   banner (before the tests).

3) power on with the red button in (to clear bbram)

4) visual check - is the daughter card properly plugged in, are the two
   flash chips (in square sockets on the under-side of the daughter card)
   correctly inserted. (Is there a daughter card, are there flash chips
   in the sockets?)

5) are the memory simms present and firm (are there two of them)?

Peter

3619.2MARVIN::HIGGINSONPeter Higginson DTN 830 6293, Reading UKFri May 02 1997 06:5512
Another thing to check:

	are any jumpers (links) fitted?

Report the info here and I'll check against a working card. (I believe
there should not be any, however a link is fitted for manufacturing tests
and might just have been left on.)

Peter


3619.3More infosLEMAN::SCHEIDEGGERRaymond @GEO - DTN 821-5236Mon May 05 1997 08:1827
    Hi,
  
    1. We order a new part from logistic.
 
       Same problem ...
    
       On the spare part the 50-20715-01 a01 / 54-20716 was not correctly
       plugged in.

       -> plug in correctly and this is OK ...

    2. On both DOA cards the same board was also not full plugged
    in. (2 millimeters) But the problem still present. ???

    3. On the DOA cards we have only the REV A01, no stickers with the
       card name (B1000-xx)

    4. We have swapped the 32 Mb memory simm ...OK

    5. All 3 jumpers are off

    6. NO events on the console.

    7. Same problem with the reset button ON at power on.

Raymond
    
3619.4Another DOA MPC-III with a red dot !!COMICS::WEIRJohn Weir, UK Country SupportWed May 21 1997 09:3211
It looks as though DOA MPC-III modules are fairly common. We just received
an MPC-III for our lab systems and it arrived DOA. No lights working, just
a red dot, as previously described. All chips, SIMMS etc were firmly located.
Connecting a console got nothing. We obtained a replacement MPC-III and all
is now OK. -- BTW this was a 16M MPC-III, not a 32M as in the base note.

Regards,

	John