Technical data

FRU Removal and Replacement 5-17
5.3.8 EEPROM Removal and Replacement (Model 400t and 400dl)
Figure 5-14 shows how to remove an EEPROM. When you remove a bad EEPROM,
replace it with an EEPROM from a new CPU board. Perform the following steps to
remove and replace the EEPROM:
1. Remove the graphics controller board.
2. Use the EEPROM puller (AMP part no. 821903-1) to remove the EEPROM from
the two CPU boards.
3. Align the flat corner of the new EEPROM with the flat corner of the EEPROM
socket, and press the EEPROM into the socket. Make sure the writing
on the EEPROM is facing up.
4. Place the defective EEPROM into the socket of the new CPU board, and return
the board to HP.
Figure 5-14. Removing the EEPROM from the System Unit (Model 400t and 400dl)