000
000
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Heat sink
3. Press firmly on the captive screws and tighten them with a screwdriver. The follow illustration
shows the sequence in tightening the screws, which is also shown on top of the heat sink.
Begin with the screw labeled as "1", then "2", "3" and finally "4". If possible, each screw
should be rotated two full rotations at a time. Repeat until the screws are tight. Do not
overtighten the screws by using excessive force. If you are using a torque wrench, tighten the
screws to 8.5 Newton-meters (Nm) to 13 Nm (6.3 foot-pounds to 9.6 foot-pounds).
Step 7.
If you are replacing microprocessor 1, install the previously removed memory module into DIMM
connector 6. If you are replacing microprocessor 2, install the previously removed memory module
from DIMM connector 12. See “Replacing a memory module” on page 213 for instructions.
Step 8.
Install the air baffle (see “Replacing the air baffle” on page 323).
Step 9.
Install the PCI riser-card assembly (see “Replacing a PCI riser-card assembly” on page 237).
Step 10. If you have the optional hot-swap rear hard disk drive cage installed, rotate it down (see “Rotating
the optional hot-swap rear hard disk drive cage down” on page 181).
Step 11. Install the server top cover (see “Replacing the server top cover” on page 321).
Step 12. Reconnect the external cables; then, reconnect the power cords and turn on the peripheral devices
and the server.
312
Lenovo System x3630 M4 Installation and Service Guide
Summary of Contents for System x3630 M4
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