H084333 - TESTING PC SERVER 720 PROCESSORS (8642)
 
 SYMPTOM:
 If the performance has degraded on the PC Server 720 with more
 than one processor, or if the operating system does not detect
 all of the processors, then one or more processors may be
 failing.  Any of the following errors are possible during POST:
 
 - Multiprocessor Error IP: 1xxDSxx or FP: 1xxDSxx appears on
   the LCD panel.
 - Test Error EP: 106S appears on the LCD panel.
 - Error 0095xxxx appears on the display or the LCD panel.
 
 PROBLEM ISOLATION AIDS:
 Note: A Test Error EP: 106S, or Multiprocessor Error
       IP: 1xxDSxx or FP: 1xxDSxx, where (S) is the slot number
       of the processor card, indicates the slot number of the
       failing processor card or indicates the slot number of
       a good processor card that is reporting the error caused
       by the failing processor card.
 
 FIX:
 Follow this procedure to isolate the failing processor:
 1. Power off the system and connect an ascii terminal or laptop
    to the serial port.  Use the serial port on the Server 720
    which connects to the internal ribbon cable labeled P2.
 2. On the laptop, start a terminal emulation program like
    HyperACCESS and configure the port for 9600 baud, 8 bits,
    No parity, and 1 stop bit.
 3. Reboot the Server 720 using the System Diagnostic Diskette.
 4. Select option 3: Extended ROM Resident Diagnostics.
 5. Note the slot number of the failing processor.
 6. Replace the failing processor and rerun the diagnostics.
 
 Refer to the IBM PC Server HMM, publication number S30H-2501-01,
 page 377, for additional information on error codes.
 
 The PC Server 720 Extended ROM Resident Diagnostics can isolate
 a failing processor card in any of the six(6) processor slots.
 
 HyperACCESS is a trademark of Hilgraeve, Inc.
 
 January 9, 1997