HP 3000 9x9KS Service Manual page 170

6. Carefully pull the top of the system board toward the rear of the cabinet and lift it out of the cabinet.
If the system board is being replaced, the memory SIMMs need to be transferred to the new system board,
along with the PAL chip.
System Board Replacement
1. Carefully insert the system card into the cabinet with the top of the system board angled toward the
back and the bottom angled toward the front of the cabinet.
2. When the bottom of the system board aligns with the mounting slots inside the cabinet, gently push the
top of the system board forward and tighten the three thumb screws.
3. Replace the power supply.
4. Replace the back cover plate.
5. Replace the Core I/O card.
6. Replace all I/O cards that were removed.
7. Re-insert the peripheral bay and power monitor card at the front of the system.
8. Replace the front cover plate.
9. Replace the front bezel.
7-34 Removal and Replacement
Figure 7-26 K100 System Board Removal