Working Inside A Server With Power On; Handling Static-Sensitive Devices - IBM x 340 Series Hardware Maintenance Manual

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Working inside a server with power on

Your server supports hot-plug, hot-add, and hot-swap devices and it is designedto
operate safely while turned on with the cover removed. Follow these guidelines when
you work inside a server that is turned on:
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Handling static-sensitive devices

Static electricity, though harmless to you, can seriously damage server components or
options.
Note: When you are adding an internal option, do not open the static-protective
When you handle options and other server components, take these precautions to
avoid damage from static electricity:
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Hardware Maintenance Manual: xSeries 340 Model 6RY
Each of the drive bays has either a drive or a filler panel installed.
Each of the power supply bays has either a power supply or a filler panel
installed.
The cover is in place during normal operation.
Space is available around the server to allow the server cooling system to work
properly. Refer to the documentation that comes with the rack.
The cover is removed for no longer than 30 minutes while the server is operating.
A removed hot-swap drive is replaced within two minutes of removal.
Cables for optional adapters are routed according to the instructions provided
with the adapters.
A failed fan is replaced within 48 hours.
Avoid loose-fitting clothing on your forearms. Button long-sleeved shirts before
working inside the server; do not wear cuff links while you are working inside the
server.
Do not allow your necktie to hang inside the server.
Remove jewelry, such as bracelets, necklaces, and loose-fitting wrist watches.
Remove items from your shirt pocket (such as pens or pencils) that could fall into
the server as you lean over it.
Take care to avoid dropping any metallic objects, such as paper clips, hair pins, or
screws, into the server.
package containing the option until you are instructed to do so.
Limit your movement. Movement can cause static electricity to build up around
you.
Always handle components carefully. Handle adapters, the memory board, and
memory modules (DIMMs) by the edges. Never touch any exposed circuitry.
Prevent others from touching components.
When you are installing a new option, touch the static-protective package
containing the option to a metal expansion-slot screw or other unpainted metal
surface on the server for at least two seconds. (This reduces static electricity from
the package and from your body.)
When possible, remove the option and install it directly into the server without
setting the option down. When this is not possible, place the static-protective
package that the option comes in on a smooth, level surface and place the option
on it.
Do not place the option on the server's covers or any metal surface.