HP rp8420 HP 9000 rp8420 Server - User Service Guide, Fifth Edition - Page 142

Installing Dual-core CPUs (AB536A and AB537A)

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NOTE: The processor screws do not need to be torqued. The processor will be properly secured when the screws reach the bottom on the socket frame. 9. Tighten the four captive screws on the power pod in an X pattern until secure. 10. Connect the Turbocooler fan cable to the cell board connector. 11. Reconnect the CPU power cable to the cell board connector. 12. Replace the processor cover and tighten the captive screws. NOTE: New cell boards housing the new PA8800 processors will require new air baffles. See "Installing the VRM Cover (AB388-00002) and Door Opener (AB388-00003)" (page 134) for more information. 13. Position the DIMM cover in place. 14. Tighten the four captive screws to secure the DIMM cover. 15. Install the cell board in the server. 16. Replace covers. 17. Power on the server. 18. Power up the nPartition. Installing Dual-core CPUs (AB536A and AB537A) There are four additional components required when replacing a CPU with a Dual-core CPU. Verify that the following part numbers are correct before proceeding. • CPUs (AB536A or AB537A) • Terminator (AB225A) • VRM Cover (AB388-00002) • Door Opener (AB388-00003) All CPU sockets must be empty before proceeding. If only one CPU module is installed on the cell board, a terminator must be installed in CPU socket 2. Use the following procedure to install new CPUs. NOTE: CPU load order must be maintained when adding CPUs to the cell board. Always load CPU socket 0 first. Reference Table 1-1 (page 25). 1. If the CPU 0 ZIF socket is not uncovered, remove the ZIF socket cover from the cell board. 2. Using a 2.5 mm hex driver, turn the ZIF socket on the cell board to the unlock position. CAUTION: When unlocking the ZIF socket, do not exceed one half turn counter-clockwise. Damage to the socket will occur, requiring replacement of the cell board. 3. Remove the CPU module from its packaging. 4. Remove the CPU module pin cover and inspect the pins for any damage. NOTE: Carefully remove pin cover to avoid any damage to the pins. NOTE: The new CPU power pod is slightly hinged. Ensure that the CPU assembly is level prior to lowering it onto the cell board. 5. Lower the CPU/Turbocooler/Power Pod assembly into the ZIF socket making sure it is held level to the board, until the pins on the CPU engage with the ZIF socket. 6. Push the load screw sequencer toward the fan to expose the ZIF socket lock peep hole. 142 Removal and Replacement

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NOTE:
The processor screws do not need to be torqued. The processor will be properly
secured when the screws reach the bottom on the socket frame.
9.
Tighten the four captive screws on the power pod in an X pattern until secure.
10.
Connect the Turbocooler fan cable to the cell board connector.
11.
Reconnect the CPU power cable to the cell board connector.
12.
Replace the processor cover and tighten the captive screws.
NOTE:
New cell boards housing the new PA8800 processors will require new air baffles.
See
“Installing the VRM Cover (AB388-00002) and Door Opener (AB388-00003)” (page 134)
for more information.
13.
Position the DIMM cover in place.
14.
Tighten the four captive screws to secure the DIMM cover.
15.
Install the cell board in the server.
16.
Replace covers.
17.
Power on the server.
18.
Power up the nPartition.
Installing Dual-core CPUs (AB536A and AB537A)
There are four additional components required when replacing a CPU with a Dual-core CPU.
Verify that the following part numbers are correct before proceeding.
•
CPUs (AB536A or AB537A)
•
Terminator (AB225A)
•
VRM Cover (AB388-00002)
•
Door Opener (AB388-00003)
All CPU sockets must be empty before proceeding. If only one CPU module is installed on the
cell board, a terminator must be installed in CPU socket 2. Use the following procedure to install
new CPUs.
NOTE:
CPU load order must be maintained when adding CPUs to the cell board. Always load
CPU socket 0 first. Reference
Table 1-1 (page 25)
.
1.
If the CPU 0 ZIF socket is not uncovered, remove the ZIF socket cover from the cell board.
2.
Using a 2.5 mm hex driver, turn the ZIF socket on the cell board to the unlock position.
CAUTION:
When unlocking the ZIF socket, do not exceed one half turn counter-clockwise.
Damage to the socket will occur, requiring replacement of the cell board.
3.
Remove the CPU module from its packaging.
4.
Remove the CPU module pin cover and inspect the pins for any damage.
NOTE:
Carefully remove pin cover to avoid any damage to the pins.
NOTE:
The new CPU power pod is slightly hinged. Ensure that the CPU assembly is level
prior to lowering it onto the cell board.
5.
Lower the CPU/Turbocooler/Power Pod assembly into the ZIF socket making sure it is held
level to the board, until the pins on the CPU engage with the ZIF socket.
6.
Push the load screw sequencer toward the fan to expose the ZIF socket lock peep hole.
142
Removal and Replacement