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SERVER 720 HANGS at CP 69 after PLANAR Replacement



Subject: SERVER 720 HANGS at CP 69 after PLANAR Replacement
Updated PC Server RETAIN TIP: 

     Record number:       H136842
     Device:              D/T8642
     Model:               M
     Hit count:           UHC00118
     Success count:       USC0000
     Publication code:    PC50
     Tip key:
     Date created:        O97/03/14
     Date last altered:   A98/06/17
     Owning B.U.:         USA


Abstract: SERVER 720 HANGS at CP 69 after PLANAR Replacement


SYMPTOM:

The PC Server 720 (8642) hangs at Check Point 69 (CP 69) during POST or MicroChannel adapters are not recognized by the system after the system board FRU P/N 06H1810 has been replaced.


PROBLEM ISOLATION AIDS:


FIX:

If replacing a system board on a Server 720 with MicroChannel adapter(s), inspect the system board first: Locate the small chip at U74 and look for a tiny blue dot the size of a period (.). If this chip has a blue dot, the system board is good and can be installed.
In the unlikely event that the tiny blue dot is missing and the Server 720 does not boot properly, order system board FRU P/N 01K7236.

          .-------------------------------------------------------.
          |                       ==========================      |
          |                                ====================   |
          |                       ==========================      |
          |                                ====================   |
          |                _      ==========================      |
   --------               |_| U74          ====================   |
   |                              ==========================      |
   |                                       ====================   |
   |                              ==============================  |
   |                                       ====================   |
   |                              ==========================      |
   |                                       ====================   |
   |                              ==========================      |
   |                                       ====================   |
   |                                                              |
   | ==============================        ====================   |
   | ==============================                               |
   |                                                              |
   | ==============================                               |
   |                                                              |
   |   ==========================                                 |
   ----------------------------------------------------------------


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