Lenovo 7D31, Maintenance Manual

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Attention:
The server might stop and data loss might occur when internal server components are exposed
to static electricity. To avoid this potential problem, always use an electrostatic-discharge wrist strap or other
grounding systems when working inside the server with the power on.
• Avoid loose-fitting clothing, particularly around your forearms. Button or roll up long sleeves before
working inside the server.
• Prevent your necktie, scarf, badge rope, or hair from dangling into the server.
• Remove jewelry, such as bracelets, necklaces, rings, cuff links, and wrist watches.
• Remove items from your shirt pocket, such as pens and pencils, in case they fall into the server as you
lean over it.
• Avoid dropping any metallic objects, such as paper clips, hairpins, and screws, into the server.
Handling static-sensitive devices
Review these guidelines before you handle static-sensitive devices to reduce the possibility of damage from
electrostatic discharge.
Attention:
Prevent exposure to static electricity, which might lead to system halt and loss of data, by
keeping static-sensitive components in their static-protective packages until installation, and handling these
devices with an electrostatic-discharge wrist strap or other grounding system.
• Limit your movement to prevent building up static electricity around you.
• Take additional care when handling devices during cold weather, for heating would reduce indoor
humidity and increase static electricity.
• Always use an electrostatic-discharge wrist strap or other grounding system, particularly when working
inside the server with the power on.
• While the device is still in its static-protective package, touch it to an unpainted metal surface on the
outside of the server for at least two seconds. This drains static electricity from the package and from your
body.
• Remove the device from the package and install it directly into the server without putting it down. If it is
necessary to put the device down, put it back into the static-protective package. Never place the device
on the server or on any metal surface.
• When handling a device, carefully hold it by the edges or the frame.
• Do not touch solder joints, pins, or exposed circuitry.
• Keep the device from others’ reach to prevent possible damages.
Replace components in the server
Follow instructions in this section to remove or install components in the server.
2.5-inch hot-swap drive and backplane replacement
Follow instructions in this section to install or remove 2.5-inch hot-swap drives and backplanes.
Remove a 2.5-inch hot-swap drive
Follow instructions in this section to remove a 2.5-inch hot-swap drive.
About this task
Attention:
• Go over “Installation Guidelines” on page 107 to ensure that you work safely.
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ThinkSystem SR850 V2 Maintenance Manual