Lenovo ThinkServer RD120, Hardware Maintenance Manual

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v
Take additional care when handling devices during cold weather. Heating reduces
indoor humidity and increases static electricity.
Returning a device or component
If you are instructed to return a device or component, follow all packaging
instructions, and use any packaging materials for shipping that are supplied to you.
Removing and replacing Self-service CRUs
Replacement of self-service CRUs is your responsibility. If Lenovo installs a
self-service 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.
1. Read the safety information that begins on page vii and “Installation guidelines”
on page 53.
2. If you are planning to install or remove a microprocessor, memory module, PCI
adapter, battery, or other non-hot-swap optional device, turn off the server and
all attached devices and disconnect all external cables and power cords.
Attention: In a dc power environment, only trained service personnel other
than Lenovo service technicians are authorized to connect or disconnect power
to the dc power supply. See the documentation that comes with each dc power
supply.
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
1
. 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.
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ThinkServer RD120 server Machine Types 6444, 6445, 6446, and 6447: Hardware Maintenance Manual