Removing The Microprocessor And Memory Expansion Tray Assembly - IBM System x3750 M4 Installation And Service Manual

Note: Make sure that all of the thermal grease is removed.
4. Use a clean area of the cleaning pad to wipe the thermal grease from the
microprocessor; then, dispose of the cleaning pad after all of the thermal grease
is removed.
Microprocessor
5. Use the thermal-grease syringe to place 9 uniformly spaced dots of 0.02 mL
each on the top of the microprocessor. The outermost dots must be within
approximately 5 mm of the edge of the microprocessor; this is to ensure
uniform distribution of the grease.
Note: If the grease is properly applied, approximately half of the grease will
remain in the syringe.
6. Install the heat sink onto the microprocessor as described in "Replacing a
microprocessor and heat sink" on page 301.
Removing the microprocessor and memory expansion tray
assembly
This information provides instructions on how to remove the microprocessor and
memory expansion tray assembly.
About this task
To remove the microprocessor and memory expansion tray, complete the following
steps:
Procedure
1. Read the safety information and installation guidelines, see "Safety" on page
vii and "Installation guidelines" on page 35.
2. Turn off the server (see "Turning off the server" on page 22) and all attached
peripheral devices. Disconnect all power cords; then, disconnect all external
cables as necessary to replace the device.
3. If the server has been installed in a rack, slide the server out from the rack
enclosure.
4. Remove the top cover (see "Removing the server top cover" on page 226).
5. If power supply 2 is installed, slide it out of the power supply bay slightly.
6. Remove the DIMMs (see "Removing a memory module" on page 246).
7. Remove the microprocessor air baffles ("Removing the microprocessor air
baffle" on page 230).
0.02 mL of thermal
grease
Chapter 6. Removing and replacing components
305