Install the bottom cover

Follow instructions in this section to install the bottom cover.

About this task

S014

CAUTION

Hazardous voltage, current, and energy levels might be present. Only a qualified service technician is authorized to remove the covers where the label is attached.

S033

CAUTION

Hazardous energy present. Voltages with hazardous energy might cause heating when shorted with metal, which might result in spattered metal, burns, or both.

Attention

• Read Installation Guidelines and Safety inspection checklist to ensure that you work safely.

• Ensure that all components have been reassembled correctly and that no tools or loose screws are left inside your server.

Required tools

Make sure you have the required tools listed below in hand to properly replace the component.

• Prepare a bottom cover thermal pad kit. See Thermal pad installation guidelines for details of thermal pad replacement.
• Prepare the following screwdrivers:
  • Phillips #1 head screwdriver
  • Phillips #2 head screwdriver

Important

If you are installing a new bottom cover to the server, make sure to attach the new thermal pads to the bottom cover first. Follow the rules and identify the location of the thermal pads in Thermal pad installation guidelines.

Procedure

1. Make preparation for this task.
   1. Check the thermal pads on the bottom cover. If a thermal pad is damaged or detached from the cover, replace it with a new one. Make sure to follow Thermal pad installation guidelines.
      Figure 1. Bottom cover thermal pads
      
      
2. Install the bottom cover.
   1. Align the bottom cover with the guiding slots on both sides of the node; then, lower the bottom cover onto the node.
   2. Insert the front and rear I/O brackets into the node until they are seated in place.
      Figure 2. Installing the bottom cover
      
      
3. Tighten screws to secure the cover.
   1. Tighten two Phillips #1 screws with pre-applied white threadlocking adhesive to the short sides of the bottom cover.
   2. Tighten six Phillips #2 screws to the long sides of the bottom cover as illustrated; then reverse the node to let the top side facing up.
   3. Slide the pull-out information tabs outward from the node.
   4. Tighten four Phillips #1 screws with pre-applied white threadlocking adhesive to the short sides of the top cover.
      Note

      Make sure to slide the pull-out information tabs back once the screw underneath is fully installed.
   Figure 3. Installing the screws