Dell PowerEdge 6400 Rack Installation Guide - Page 10

When Working Inside Your Computer

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05KCEes1.fm Page viii Thursday, September 14, 2000 1:36 PM ),/( /2&$7,21 5 0XOWL?9?.&(HVIP • Do not overload the AC supply branch circuit that provides power to the rack. The total rack load should not exceed 80 percent of the branch circuit rating. • Ensure that proper airflow is provided to components in the rack. • Do not step on or stand on any system/component when servicing other systems/components in a rack. Precautions for Products With Modems, Telecommunications, or Local Area Network Options Observe the following guidelines when working with options: • Do not connect or use a modem or telephone during a lightning storm. There may be a risk of electrical shock from lightning. • Never connect or use a modem or telephone in a wet environment. • Do not plug a modem or telephone cable into the network interface controller (NIC) receptacle. • Disconnect the modem cable before opening a product enclosure, touching or installing internal components, or touching an uninsulated modem cable or jack. • Do not use a telephone line to report a gas leak while you are in the vicinity of the leak. Precautions for Products With Laser Devices Observe the following precautions for laser devices: • Do not open any panels, operate controls, make adjustments, or perform procedures on a laser device other than those specified in the product's documentation. • Only authorized service technicians should repair laser devices. When Working Inside Your Computer Before you remove the computer covers, perform the following steps in the sequence indicated. CAUTION: Some Dell systems can be serviced only by trained service technicians because of high voltages and energy hazards. Do not attempt to service the computer system yourself, except as explained in this guide and elsewhere in Dell documentation. Always follow installation and service instructions closely. NOTICE: To help avoid possible damage to the system board, wait 5 seconds after turning off the system before removing a component from the system board or disconnecting a peripheral device from the computer. '(// &21),'(17,$/  3UHOLPLQDU\  viii

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viii
'(//±&21),'(17,$/±²±3UHOLPLQDU\±±±±±³´µ¶´··
),/(±/2&$7,21²±±5²?³´µ´´¶³´µ··?³´µ¸¸?0XOWL?9¹?´¸.&(HV³ºIP
•
Do not overload the AC supply branch circuit that provides power to the rack.
The total rack load should not exceed 80 percent of the branch circuit rating.
•
Ensure that proper airflow is provided to components in the rack.
•
Do not step on or stand on any system/component when servicing other
systems/components in a rack.
Precautions for Products With Modems,
Telecommunications, or Local Area Network Options
Observe the following guidelines when working with options:
•
Do not connect or use a modem or telephone during a lightning storm. There
may be a risk of electrical shock from lightning.
•
Never connect or use a modem or telephone in a wet environment.
•
Do not plug a modem or telephone cable into the network interface controller
(NIC) receptacle.
•
Disconnect the modem cable before opening a product enclosure, touching or
installing internal components, or touching an uninsulated modem cable or jack.
•
Do not use a telephone line to report a gas leak while you are in the vicinity of the
leak.
Precautions for Products With Laser Devices
Observe the following precautions for laser devices:
•
Do not open any panels, operate controls, make adjustments, or perform
procedures on a laser device other than those specified in the product
’
s
documentation.
•
Only authorized service technicians should repair laser devices.
When Working Inside Your Computer
Before you remove the computer covers, perform the following steps in the sequence
indicated.
CAUTION: Some Dell systems can be serviced only by trained service tech-
nicians because of high voltages and energy hazards. Do not attempt to
service the computer system yourself, except as explained in this guide and
elsewhere in Dell documentation. Always follow installation and service
instructions closely.
NOTICE: To help avoid possible damage to the system board, wait
5 seconds after turning off the system before removing a component from
the system board or disconnecting a peripheral device from the computer.
05KCEes1.fm
Page viii
Thursday, September 14, 2000
1:36 PM