Lenovo ThinkSystem SR550 Maintenance Manual

Also see for ThinkSystem SR550: Manual Manual Product guide Quick start guide Setup guide

Attention: The server might stop and loss of data might occur when internal server components areexposed to static electricity. To avoid this potential problem, always use an electrostatic-discharge wriststrap 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 beforeworking inside the server.• Prevent your necktie, scarf, badge rope, or long 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 youlean over it.• Avoid dropping any metallic objects, such as paper clips, hairpins, and screws, into the server.Handling static-sensitive devicesReview these guidelines before you handle static-sensitive devices to reduce the possibility of damage fromelectrostatic discharge.Attention: Prevent exposure to static electricity, which might lead to system halt and loss of data, bykeeping static-sensitive components in their static-protective packages until installation, and handling thesedevices 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 indoorhumidity and increase static electricity.• Always use an electrostatic-discharge wrist strap or other grounding system, particularly when workinginside the server with the power on.• While the device is still in its static-protective package, touch it to an unpainted metal surface on theoutside of the server for at least two seconds. This drains static electricity from the package and from yourbody.• Remove the device from the package and install it directly into the server without putting it down. If it isnecessary to put the device down, put it back into the static-protective package. Never place the deviceon 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.Top cover replacementUse this information to remove and install the top cover.Remove the top coverUse this information to remove the top cover.“Read theinstallationGuidelines” onpage 53“Power offthe serverfor this task”on page 13“ATTENTION:Static Sensitive DeviceGround package before opening”on page 56S03356 ThinkSystem SR550 Maintenance Manual