Type PSU terminal block Power cord
Input
-Vin
Ground
GND
Input
RTN
3. Face the groove side of each power cord pin upwards, plug the pins into corresponding
holes on the power block, use the table above for guidance, and ensure that the pins find
correct slots.
4. Tighten the captive screws on the power block, and ensure that the screws and cord pins
are secured in place and no bare metal parts show.
5. Connect the other end of the cables to a properly grounded electrical outlet, and ensure that
the cable ends find correct outlets.
Step 4. Route the cables and ensure that they are not blocking access to other chassis components.
After you finish
1. If you have adjusted the CMA to gain access to the power supply bay, properly readjust the CMA back
in place.
2. If the server is turned off, turn on the server. Ensure that both the power input LED and the power output
LED on the power supply are lit, indicating that the power supply is operating properly.
Processor and heat sink replacement (trained technician only)
Follow the instruction in this section to replace an assembled processor and heat sink, known as a
processor-heat-sink module (PHM), a processor, or a heat sink.
Important: This task must be operated by trained technicians that are certified by Lenovo Service. Do no
attempt to remove or install it without proper training and qualification.
Attention: Before reusing a processor or heat sink, make sure that you use Lenovo proven alcohol cleaning
pad and thermal grease.
Remove a processor and heat sink
This task has instructions for removing an assembled processor and heat sink, known as a processor-heat-
sink module (PHM). This task requires a Torx T30 driver. This procedure must be executed by a trained
technician.
About this task
S002
CAUTION:
176
ThinkSystem SR650 V3 User Guide
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