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S
P
ERVICE
ROCEDURES
T
O INSTALL THE MOTHERBOARD IN THE MOTHERBOARD TRAY
1. If protective covers are present on the CPU sockets on the new motherboard, remove them.
Then install the covers on the CPU sockets on the old motherboard to protect the circuitry.
2. If you are installing a new motherboard, install the DIMMs and CPUs from the old
motherboard onto the new motherboard. For DIMMs, see
Follow these guidelines:
• Make sure to use the fresh thermal compound that came with the new motherboard when
transferring CPUs onto the new motherboard (see
• Make sure that the motherboard is placed on an antistatic surface with some padding.
• Do not transfer the BIOS chip from the old motherboard onto the new motherboard.
Doing so can cause the system to shut down due to incompatibility issues.
3. Angle the motherboard so the back panel connectors on the motherboard fit into the cutouts
in the connector panel of the motherboard tray (see
4. Align the mounting holes in the motherboard with the mounting posts on the motherboard
tray.
5. Install the CPU cooling assemblies that you removed earlier.
For detailed installation instructions, see
6. Insert the nine motherboard mounting screws that attach the motherboard to the
motherboard tray (see
Always install the CPU cooling assemblies before installing the nine motherboard mounting
screws. You may flex and damage the motherboard if you perform the installations in the
wrong order.
Partially tighten each mounting screw before completely tightening any one screw. Do not
overtighten the screws; doing so could damage traces on the motherboard.
page
102.
Figure 28 on page
81).
page
99; for CPUs, see
page 106
for details).
Figure 28 on page
81).
84
page
102.
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