Installing The Non-Hot-Swap Power Supply - Lenovo 5457 Installation And Service Manual

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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.
5. Use the thermal-grease syringe to place nine 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.
Figure 47. Thermal grease distribution
Note: If the grease is properly applied, approximately half of the grease will remain in the syringe.
Figure 48. Syringe
6. Install the heat sink onto the microprocessor as described in
sink" on page
293.

Installing the non-hot-swap power supply

This procedure applies only to 4U server models with non-hot-swap power supplies.
Statement 8
CAUTION:
Never remove the cover on a power supply or any part that has the following label attached.
0.02 mL of thermal
Microprocessor
grease
"Replacing the microprocessor and heat
.
Chapter 2
Installing optional devices
65

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