System Reliability Guidelines - Lenovo ThinkServer RD230 Hardware Maintenance Manual

• Before you install optional hardware devices, make sure that the server is working correctly. If the server
is not working correctly, refer to Diagnostics for your server for detailed diagnostic information. To obtain
the publication, go to:
http://www.lenovo.com/support
• Observe good housekeeping in the area where you are working. Put removed covers and other parts
in a safe place.
• If you must turn on the server while the server cover is removed, make sure that no one is near the server
and that no tools or other objects have been left inside the server.
• Do not attempt to lift an object that you think is too heavy for you. If you have to lift a heavy object,
observe the following precautions:
– Make sure that you can stand safely without slipping.
– Distribute the weight of the object equally between your feet.
– Use a slow lifting force. Never move suddenly or twist when you lift a heavy object.
– To avoid straining the muscles in your back, lift by standing or by pushing up with your leg muscles.
• Make sure that you have an adequate number of properly grounded electrical outlets for the server,
monitor, and other devices.
• Back up all important data before you make changes to drives.
• Have a small flat-blade screwdriver available.
• To view the error LEDs on the system board and internal components, leave the server connected to
power.
• You do not have to turn off the server to install or replace hot-swap fans, redundant hot-swap ac power
supplies, or hot-plug USB devices. However, you must turn off the server before performing any steps that
involve installing, removing, or replacing adapter cables or non-hot-swap optional devices or components.
• After completing any installation, removal, or replacement procedure, reinstall all safety shields, guards,
labels, and ground wires.
• For a list of supported optional devices for the server, go to
http://www.lenovo.com/thinkserver.
• When working inside the server, you might find some tasks easier if you lay the server on its side.

System reliability guidelines

To help ensure proper cooling and system reliability, make sure that you follow these guidelines:
• Every drive bay has an internal drive installed or an Electro Magnetic Compatibility (EMC) shield installed.
• If the server has redundant power, every power supply bay has a power supply assembly installed.
• Leave adequate space around the server to make sure that the server cooling system works well.
• Properly route the cables. For some options, such as PCI cards, follow the cabling instructions that
come with the options.
• Make sure that you replace a failing fan within 48 hours.
• When replacing a hot-swap drive, install the new hot-swap drive within two minutes of removal.
• Do not remove any air duct or air baffles while the server is running. Operating the server without the
air duct or air baffles might cause the microprocessor to overheat.
• The second microprocessor socket always contains either a microprocessor socket cover or a
microprocessor.
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ThinkServer RD230 Hardware Maintenance Manual