Technical data

FRU Removal and Replacement 5-15
6. Note the jumper settings for the EtherLAN port and the clock speed on the CPU
board. Set the jumpers on the new CPU board accordingly (see Figure 5-12). For
more information about the jumper settings on the CPU board, refer to Appendix
A.
Figure 5-12. CPU Board Component Locations (Model 400t and 400dl)
7. Remove the emulator board from the defective CPU board and install it on the
new CPU board. Remove the five screws (see Figure 5-12), then carefully lift the
emulator board to disengage the IC pins from the socket on the CPU board. Seat
the emulator board on the new CPU board by carefully inserting the IC pins of the
emulator board into the socket on the CPU board. Install the five screws.
NOTICE: The EEPROM on the CPU board stores the node
id used by Domain Compatible systems, and the
I/O configuration information used by HP-UX
Compatible systems, To retain this information
when you replace a CPU board, move the original
EEPROM to the new CPU board.
CAUTION: Use an anti-static strap to prevent electrostatic
damage to the EEPROM. Electrostatic damage
can destroy the EEPROM or erase configuration
information from the EEPROM. If the EEPROM
should require reconfiguration, refer to Appendix
B for Domain Compatible systems, and to Appen
-
dix C for HP-UX Compatible systems.