Removing and replacing Tier 1 CRUs
Replacement of Tier 1 CRUs is your responsibility. If IBM installs a Tier 1 CRU at
your request, you will be charged for the installation.
The illustrations in this document might differ slightly from your hardware.
Removing the cover
To remove the cover, complete the following steps.
Cover-release
latch
1. Read the safety information that begins on page vii and “Installation guidelines”
on page 87.
2. If you are planning to install or remove a microprocessor, memory module, PCI
adapter, or battery, turn off the server and all attached devices and disconnect
all external cables and power cords.
3. Press down on the left and right side latches and pull the server out of the rack
enclosure until both slide rails lock.
Note: You can reach the cables on the back of the server when the server is in
the locked position.
4. Lift the cover-release latch. Lift the cover off the server and set the cover aside.
Attention: For proper cooling and airflow, replace the cover before turning on
the server. Operating the server for extended periods of time (over 30 minutes)
with the cover removed might damage server components.
5. If you are instructed to return the cover, follow all packaging instructions, and
use any packaging materials for shipping that are supplied to you.
90 IBM System x3650 Type 7979 and 1914: Problem Determination and Service Guide
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