Installing the DIMM air baffle
To install the DIMM air baffle, complete the following steps.
DIMM air baffle
PCI riser-card
assembly 1
1. Align the DIMM air baffle with the DIMMs and the back of the fans.
2. Lower the air baffle into place, making sure all cables are out of the way.
3. Replace PCI riser-card assembly 1, if necessary.
4. Install the cover (see “Installing the cover” on page 178).
5. Slide the server into the rack.
6. Reconnect the external cables; then, reconnect the power cords and turn on the
peripheral devices and the server.
Attention: For proper cooling and airflow, replace all air baffles before you turn on
the server. Operating the server with any air baffle removed might damage server
components.
Removing the fan bracket
To replace some components or to create working room, you might have to remove
the fan-bracket assembly.
Note: To remove or install a fan, it is not necessary to remove the fan bracket. See
“Removing a hot-swap fan” on page 223 and “Installing a hot-swap fan” on page
224.
To remove the fan bracket, complete the following steps.
182 IBM System x3650 M3 Types 4255, 7945, and 7949: Problem Determination and Service Guide