Lenovo System x3500 M4 Installation And Service Manual page 205

To install the air baffle (two microprocessors installed), complete the following steps.
Step 1. Carefully turn the server on its side so that it is lying flat, with the cover facing up.
Attention: Do not allow the server to fall over.
Step 2. Unlock and remove the left-side cover (see "Removing the left-side cover" on page 184).
Step 3. Align the positioning pins on the ends of the air baffle with the locating holes in the server chassis
and fan cage assembly.
Step 4. Slide the air baffle down into the server until the positioning pins fit into the locating holes; then,
press down on the air baffle until the pinch tab clicks into place.
Figure 105. Air baffle installation
Step 5. Install and lock the left-side cover (see "Installing the left-side cover" on page 185).
If you have replaced a server component or installed an optional device in the server, you need to reconnect
the power cords and all external cables, and turn on the server and peripheral devices.
Removing a RAID adapter battery or flash power module holder
Use this information to remove a RAID adapter battery or flash power module holder.
Read the safety information in "Safety" on page v and "Installation guidelines" on page 35.
If you are replacing a server component in the server, you need to turn off the server and peripheral devices,
and disconnect the power cords and all external cables.
Air baffle
.
Chapter 6 Removing and replacing components
191