Working Inside The Server With The Power On; Handling Static-Sensitive Devices - Huawei Tecal RH5485 Problem Determination And Service Manual

Tecal RH5485 Server
Problem Determination and Service Guide
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5.1.3 Working inside the server with the power on

Static electricity that is released to internal server components when the server is powered on
might cause the server to halt, which might result in the loss of data. To avoid this potential
problem, always use an electrostatic-discharge wrist strap or other grounding system when
you work inside the server with the power on. You can connect the wrist strap to a connector
on the front of the server (see "Front view" for the location of the electrostatic-discharge
connector).
The server supports hot-swap devices and is designed to operate safely while it is turned on
and the cover is removed. Follow these guidelines when you work inside a server that is
turned on:
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5.1.4 Handling static-sensitive devices

Issue 02 (2011-05-25)
There is adequate space around the server to allow the server cooling system to work
properly. Leave approximately 50 mm (2 in.) of open space around the front and rear of
the server. Do not place objects in front of the fans. For proper
cooling and airflow, replace the server cover before you turn on the server. Operating
the server for extended periods of time (more than 30 minutes) with the server cover
removed might damage server components.
You have followed the cabling instructions that come with optional adapters.
You have replaced a failed fan within 48 hours.
You have replaced a hot-swap drive within 2 minutes of removal.
For redundant and hot-swappable power supply operation, the power supplies are
connected to 200-240 V ac.
Microprocessor sockets 1 - 4 each always contain either a heat-sink blank or a
microprocessor and heat sink.
NOTE
Microprocessor temperature, hard disk drive temperature, and planar voltage sensing is not supported.
CAUTION
Avoid wearing 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 or scarf to hang inside the server.
Remove jewelry, such as bracelets, necklaces, rings, and loose-fitting wrist watches.
Remove items from your shirt pocket, such as pens and pencils, that might fall into the
server as you lean over it.
Avoid dropping any metallic objects, such as paper clips, hairpins, and screws, into the
server.
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5 Removing and replacing components
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