CAUTION:
Always be sure that equipment is properly grounded and that you follow proper
grounding procedures before beginning any installation procedure. Improper grounding can result
in ESD damage to electronic components. For more information, see
CAUTION:
When performing non-hot-plug operations, you must power down the server blade
and/or the system. Use caution when performing other operations, such as hot-plug installations
or troubleshooting.
CAUTION:
Protect the equipment from AC power fluctuations and temporary interruptions with
a regulating facility UPS device. This device protects the hardware from damage caused by
power surges and voltage spikes and keeps the system in operation during a power failure.
Precautions for maintaining and servicing products
To reduce the risk of electric shock or damage to the equipment when installing, maintaining, or
servicing products, observe the following precautions:
•
Some products contain power supplies that are capable of producing hazardous energy
levels. Refer to the documentation included with your product to determine whether it contains
these power supplies. The installation of internal options and routine maintenance and
service of this product should be performed by individuals who are knowledgeable about
the procedures, precautions, and hazards associated with equipment containing hazardous
energy levels.
•
Allow the product to cool before removing covers and touching internal components.
•
Do not use conductive tools that could bridge live parts.
•
Remove all watches, rings, or loose jewelry when working in hot-plug areas of an energized
server and storage products.
•
Do not attempt to defeat safety interlocks (where provided).
•
Some products have covers or doors to access hot-plug components and may allow access
to hazardous energy circuits or moving fans.
◦
The doors should remain locked during normal operation.
OR
•
The product should be installed in a controlled access location where only qualified personnel
have access to the product.
•
Power down the equipment and disconnect all AC power cords before removing any access
covers for non-hot-plug areas.
•
Do not replace non-hot-plug components while power is applied to the product. First, shut
down the product and disconnect all AC power cords.
•
Do not exceed the level of repair specified in the procedures in the product documentation.
All troubleshooting and repair procedures are detailed to allow only subassembly or
module-level repair. Because of the complexity of the individual boards and subassemblies,
do not attempt to make repairs at the component level or to make modifications to any printed
wiring board. Improper repairs can create a safety hazard.
•
Verify that the AC power supply branch circuit that provides power to the rack is not
overloaded. This will reduce the risk of personal injury, fire, or damage to the equipment.
The total rack load should not exceed 80 percent of the branch circuit rating. Consult the
electrical authority having jurisdiction over your facility wiring and installation requirements.
10
Removal and replacement procedures
