Replacing The Processor; System Board; Removing The System Board - HP Xw8400 - Workstation - 4 GB RAM Technical Reference Manual

Replacing the processor

1. Disconnect power from the system (
panel (Access panel on page
and the processor
2. Raise the processor socket handle fully (the full swing angle of the lever is approximately 105
degrees).
CAUTION:
processor in the socket to avoid bending pins.
3. Align the notches in the processor base with the tabs on the socket. Seat the processor into the
socket. Ensure that the underside of the processor is level with the top of the processor socket.
Close the processor cover plate. Lightly press down on the processor cover plate while closing the
socket lever.
Figure 4-68

System board

Removing the system board

1. Disconnect power from the system (
access panel
facing up. Remove all expansion boards, graphics cards
on page
remove the system/memory fan assembly
2. Disconnect all cables from the system board.
NOTE:
See Power connections to drives on page
3. Slide the system board forward (1) to disengage the metal mounting standoffs from the chassis.
CAUTION:
are permanently secured and are not removable.
98 Chapter 4 Removal and replacement procedures
57), the CPU heatsink
(Removing the processor on page
Socket pins are delicate and bend easily. Use extreme care when placing the
Seating the processor
(Access panel on page
71), and the CPU heatsink
Make note of the cable connections before disconnecting them from the system board.
Do not attempt to remove the eight system board mounting screws. These screws
Pre-disassembly procedures on page
(Removing the CPU heatsink on page
96).
Pre-disassembly procedures on page
57). Place the workstation on its side with the system board
(Removing PCI or PCI Express cards
(Processor heatsink on page
(Power supply on page
84for more information.
50). Remove the access
50), and remove the
93). If an airflow duct is installed,
62).
93),
ENWW