The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express
warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall
not be liable for technical or editorial errors or omissions contained herein.
Retain and follow all product safety and operating instructions. Always refer to the documentation
(printed or electronic) supplied with your product. If there is a conflict between this document and
the product documentation, the product documentation takes precedence. Observe all warnings
on the product and in the operating instructions to reduce the risk of bodily injury, electric shock,
fire, and damage to the equipment.
General precautions
CAUTION:The installation and maintenance of products must be carried out by qualified
personnel.
If the product sustains damage requiring service, disconnect the product from the AC electrical
outlet and refer servicing to an HP authorized service provider. Examples of damage requiring
service include:
•The power cord, extension cord, or plug has been damaged.
•Liquid has been spilled on the product or an object has fallen into the product.
•The product has been exposed to rain or water.
•The product has been dropped or damaged.
•The product does not operate normally when you follow the operating instructions.
To reduce the risk of personal injury or damage to the product:
•Place the product away from radiators, heat registers, stoves, amplifiers, or other products
that produce heat.
•Never use the product in a wet location.
•Avoid inserting foreign objects through openings in the product.
•Move products with casters carefully. Avoid quick stops and uneven surfaces.
•Turn down the volume before using headphones or other audio devices.
Symbols on equipment
The following symbols may be placed on equipment to indicate the presence of potentially
hazardous conditions:
This symbol in conjunction with any of the following symbols indicates the presence of a potential
hazard. The potential for injury exists if warnings are not observed. Consult your documentation for
specific details.
This symbol indicates the presence of hazardous energy circuits or electric shock hazards. Refer all
servicing to qualified personnel.
WARNING: To reduce the risk of injury from electric shock hazards, do not open this enclosure. Refer
all maintenance, upgrades, and servicing to qualified personnel.
This symbol indicates the presence of electric shock hazards. The area contains no user or
field-serviceable parts. Do not open for any reason.
WARNING: To reduce risk of injury from electric shock hazards, do not open this enclosure.
General precautions5
This symbol on an RJ-45 receptacle indicates a Network Interface Connection.
WARNING: To reduce risk of electric shock, fire, or damage to the equipment, do not plug telephone
or telecommunications connectors into this receptacle.
This symbol indicates the presence of a hot surface or hot component. If this surface is contacted,
the potential for injury exists.
WARNING: To reduce the risk of injury from a hot component, allow the surface to cool before
touching.
This symbol indicates the presence of a moving fan blade. If the spinning blades are contacted, the
potential for injury exists.
WARNING: Hazardous moving parts. Keep away from moving fan blades. To reduce the risk of
injury from a hot component, allow the surface to cool before touching.
These symbols on power supplies or systems indicate that the equipment is supplied by multiple
sources of power.
WARNING: To reduce the risk of injury from electric shock, remove all power cords to completely
disconnect power from the system.
This symbol indicates that the component exceeds the recommended weight for one individual to
handle safely.
WARNING: To reduce the risk of personal injury or damage to the equipment, observe local
occupational health and safety requirements and guidelines for manual material handling.
A discharge of static electricity from a finger or other conductor may damage system boards or other
static-sensitive devices. To prevent damage, observe antistatic precautions.
This symbol indicates the presence of a laser device in the product that may exceed Class 1 limits.
Refer to the product documentation for more information.
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).
6Safety precautions
•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 server should be installed in a controlled access location where only qualified
personnel have access to the server.
•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.
•For floor-standing products, install and extend bottom stabilizers before installing options and
boards.
•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.
Precautions for power products
Power cords
To reduce the risk of electric shock or damage to the equipment:
•Use an approved power cord. If you have questions about the type of power cord to use,
contact your HP authorized service provider.
•If you have not been provided with a power cord for your computer or for any AC-powered
option intended for your product, purchase a power cord that is approved for use in your
country.
•You must use a power cord rated for your product and for the voltage and current marked on
the electrical ratings label of the product. The voltage and current rating of the cord must be
greater than the voltage and current rating marked on the product.
•Do not place objects on AC power cords or cables. Arrange them so that no one may
accidentally step on or trip over them.
•Do not pull on a cord or cable. When unplugging from the electrical outlet, grasp the cord
by the plug.
•Make sure that the total ampere rating of all products plugged into an extension cord or power
strip does not exceed 80 percent of the ampere ratings limit for the extension cord or power
strip.
•Do not disable the power cord grounding plug. The grounding plug is an important safety
feature.
•Plug the power cord into a grounded (earthed) electrical outlet that is easily accessible at all
times.
Precautions for power products7
Power supplies
Hot-plug power supplies are not designed to be removed or installed with AC power connected
to the power supply. To reduce the risk of electric shock or damage to the equipment when handling
hot-plug power supplies:
•Install the power supply before connecting the power cord to the power supply.
•Unplug the power cord before removing the power supply from the product.
•If the system has multiple sources of power, you must unplug all AC power cords from the
power supplies to completely disconnect power from the system.
Verify that the external power source connected to your product matches the type of power source
indicated on the electrical ratings label. If you are not sure of the type of power source required,
consult your HP authorized service provider or local power company.
Uninterruptible power supply (UPS) products
•To reduce the risk of electric shock and/or equipment damage when installing or servicing
UPS products:
◦The installation of options and routine maintenance and service of UPS products must be
performed by trained service technicians who are knowledgeable about the procedures,
precautions, and hazards associated with AC power products.
◦Hardwired UPS products require a direct connection to an AC branch circuit (AC mains).
Connection should only be performed in accordance with National Electrical Code
(NFPA70) Article 310 in North America or the equivalent local and national wiring
regulations.
◦Use a Lockout/Tagout procedure to isolate hardwired UPS products from AC power
before servicing the product or replacing a non-hot-plug component.
◦Do not operate a UPS that is disconnected from AC power. Use the TEST/ALARM RESET
button to test the batteries. Disconnect all protected loads before disconnecting the UPS
from AC power.
◦Pluggable UPS products must be disconnected and unplugged from AC power before
servicing the product or replacing a non-hot-plug component.
◦Do not overload the output of the UPS. The total connected load should not exceed the
rated output.
◦To reduce the risk of electric shock due to high leakage currents, ensure that there is a
reliable grounded (earthed) connection before connecting power distribution products to
AC power.
If a large number of products will be connected to a single UPS, it may be necessary to
conduct an evaluation of the installation to verify the total amount of leakage current. The
total combined leakage current should not exceed 5 percent of the input current for the
UPS and associated load.
8Safety precautions
◦For rack installations, do not exceed the maximum number of UPS products in any single
equipment rack.
◦For rack installations, install the UPS only at the bottom of a rack.
•To reduce the risk of personal injury or damage to equipment when installing a Remote
Emergency Power Off (REPO) port:
◦The REPO port must be wired by a licensed electrician.
◦Verify that the main AC power disconnect device for the UPS is locked and/or tagged
in the OFF position before wiring the REPO port.
◦In North America, the REPO circuit must comply with the NEC (NFPA 70, Article 725)
for a Class 2 circuit. In other geographical regions or countries, the REPO port wiring
must comply with the national and local standards in the area in which the product is
installed.
•To reduce the risk of personal injury from electric shock or damage to equipment when installing
or servicing batteries:
◦Make sure that only trained service personnel handle or connect the batteries.
◦Remove watches, rings, or other metal objects prior to working with the equipment.
◦Use tools with insulated handles.
◦On products with remote external batteries, do not attempt to replace batteries unless all
battery circuit breakers are in the OFF (down) position. These are hazardous voltage
batteries.
•This product may contain sealed lead-acid batteries. To reduce the risk of fire or chemical
burns:
◦Do not attempt to recharge batteries after they have been removed from the equipment.
◦Do not disassemble, crush, or puncture the batteries.
◦Do not short the external contacts of the batteries.
◦Do not immerse the batteries in water.
◦Do not expose the batteries to temperatures higher than 60°C or dispose of in fire.
◦Use only the HP spare battery designated for this equipment.
Power distribution units (PDUs)
To reduce the risk of electric shock and/or equipment damage when installing or servicing PDUs:
•The installation and routine maintenance and service of PDUs must be performed by trained
service technicians who are knowledgeable about the procedures, precautions, and hazards
associated with AC power products.
•Hardwired PDUs require a direct connection to an AC branch circuit (AC mains). Connection
should only be performed in accordance with National Electrical Code (NFPA70 Article 310)
in North America, or in other regions or countries, in accordance with the equivalent local
and national wiring regulations.
•A reliable grounded (earthed) connection should be checked before connecting PDUs.
•Use a Lockout/Tagout procedure to isolate hardwired PDUs from AC power before servicing
or replacing the product.
Precautions for power products9
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