IBM X3950 X5 Problem Determination And Service Manual page 138

Replacing the front hot-swap fans
This topic provides instructions for installing a replacement hot-swap fan.
About this task
To install a replacement hot-swap fan, complete the following steps:
Procedure
1. Open the fan-release handle to 90° on the replacement fan.
2. Slide the fan into the server, and close the handle to the locked position.
3. Make sure that the fan error LED on the replacement fan is off.
4. Install the front bezel (see "Replacing the front bezel" on page 109).
Removing the middle hot-swap fan
This topic provides instructions for how to remove the middle hot-swap fan.
About this task
To remove the middle hot-swap fan, complete the following steps.
Procedure
1. Read the safety information that begins with "Safety" on page v and
2. Remove the top cover (see "Removing and replacing consumable parts and Tier
3. Squeeze the fan handles together, and then lift the fan out of the server.
122
IBM System x3850 X5 and x3950 X5 Types 7145, 7146, 7143, and 7191: Problem Determination and Service Guide
"Installation guidelines" on page 97.
1 CRUs" on page 105).
Attention: To ensure proper cooling and airflow, do not operate the server for
more than 2 minutes with the top cover removed.
Attention: The server cannot run for more than 30 seconds when this fan is
removed. The server will shut down automatically if the fan is missing for 30
seconds or longer.