Central Processing Unit (CPU) Replacement

The server can be powered off remotely or on the hardware itself.

Remote Power Down: Login to the server to power it off.

• shutdown -h now;exit

Hardware Power Down: Press and hold the power switch for at least three seconds, as annotated.

Disconnect the 10G SFP+ cable from the network interface controller.

• Use the pull-tab to disconnect the cable.

Grasp the server as shown.

Pull the retention plunger upwards.

Begin sliding the server out of the rack.

Disconnect the Ethernet cable from the server.

• Press the tab on the end of the cable to release it.

Counter the weight of the server, as shown.

Completely remove the server from the rack.

Engage the server lid, as shown.

Push the lid towards the rear of the server.

Lift the cover.

Loosen four screws. Select screws in a diagonal fashion.

• To loosen, use about two screwdriver rotations.

Continue to unscrew the screws holding the heat sink to the CPU until you can remove it.

Grab the heatsink as shown.

Lift the heatsink off the CPU.

Grab the right CPU socket retention lever, as shown.

Press the lever down and away from the CPU.

• The CPU socket retention lever is spring loaded. Keep pressure on the lever as it lifts.

Release the left lever.

Grab the CPU, as shown.

Lift the CPU.

Engage the CPU retention housing, as shown.

Obtain an isopropyl alcohol cloth.

Hold the CPU by its edges.

• The CPU may have a blue shroud. If so, hold it by the shroud.

Continue wiping the CPU with the alcohol-soaked cloth to remove the thermal compound.

• Multiple passes may be needed to completely remove all of the thermal compound.

Obtain a heatsink stencil.

Seat the stencil on the bottom of the heatsink (as shown).

• Seating the stencil may require some force.

Apply thermal compound, as shown.

Lift the stencil off of the heatsink.

• The stencil may require some force to lift.

Align the arrow printed on the CPU so that it matches the arrow on the CPU socket gate.

Place CPU in socket, and close the socket gate.

• Socket gate close process is opposite of removal.

Lower heatsink onto the CPU.

• Visually align the heatsink while lowering.

Tighten (4) screws.

• This process is opposite of removing the heatsink.
• It is necessary to apply pressure to the heatsink while tightening (4) screws.

Install the lid on the server.

• The installation process is opposite of the removal process.

Slide the server back into the rack.

• Lift the green retention pin to clear the chassis.

Connect all previously disconnected peripheral cables.

• Slide the server until the green retention pin snaps downwards, locking the server.

Press the power button.

Slide the server into the rack.

• The retention plunger does not need to be pulled upward during installation.
• The server is secure when the retention plunger snaps shut.

Connect the 10G SFP+ cable into the network interface controller.

Connect the Ethernet cable to the server.

Press the power button.