HP BladeSystem bc2800 Service Reference Guide: HP BladeSystem PC Blade Enclosu - Page 7

About this Guide, Audience Assumptions, Technician Notes

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1 About this Guide Use this service reference guide when servicing HP BladeSystem PC Blade Enclosure G2 assemblies. WARNING! To reduce the risk of personal injury from electric shock and hazardous energy levels, only authorized service technicians should attempt to repair this equipment. Improper repairs can create conditions that are hazardous. Audience Assumptions This guide is for service technicians. HP assumes you are qualified in the servicing of computer equipment and trained in recognizing hazard in products with hazardous energy levels and are familiar with weight and stability precautions for rack installations. Before installing this product, read the Important Safety Information document provided. Technician Notes WARNING! Only authorized technicians trained by HP should attempt to repair this equipment. All troubleshooting and repair procedures are detailed to allow only subassembly/module-level repair. Because of the complexity of the individual boards and subassemblies, no one should attempt to make repairs at the component level or to make modifications to any printed wiring board. Improper repairs can create a safety hazard. WARNING! To reduce the risk of personal injury from electric shock and hazardous energy levels, do not exceed the level of repairs specified in these procedures. 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 conditions that are hazardous. WARNING! To reduce the risk of electric shock or damage to the equipment: - Disconnect power from the system by unplugging all power cords from the power supplies. - 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. CAUTION: To properly ventilate the system, you must provide at least 7.6 cm (3.0 in) of clearance at the front and back of the server. CAUTION: The computer is designed to be electrically grounded (earthed). To ensure proper operation, plug the AC power cord into a properly grounded AC outlet only. Audience Assumptions 1

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1
About this Guide
Use this service reference guide when servicing HP BladeSystem PC Blade Enclosure G2
assemblies.
WARNING!
To reduce the risk of personal injury from electric shock and hazardous energy levels,
only authorized service technicians should attempt to repair this equipment. Improper repairs can
create conditions that are hazardous.
Audience Assumptions
This guide is for service technicians. HP assumes you are qualified in the servicing of computer
equipment and trained in recognizing hazard in products with hazardous energy levels and are
familiar with weight and stability precautions for rack installations.
Before installing this product, read the
Important Safety Information
document provided.
Technician Notes
WARNING!
Only authorized technicians trained by HP should attempt to repair this equipment. All
troubleshooting and repair procedures are detailed to allow only subassembly/module-level repair.
Because of the complexity of the individual boards and subassemblies, no one should attempt to
make repairs at the component level or to make modifications to any printed wiring board. Improper
repairs can create a safety hazard.
WARNING!
To reduce the risk of personal injury from electric shock and hazardous energy levels,
do not exceed the level of repairs specified in these procedures. 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 conditions that are
hazardous.
WARNING!
To reduce the risk of electric shock or damage to the equipment:
– Disconnect power from the system by unplugging all power cords from the power supplies.
– 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.
CAUTION:
To properly ventilate the system, you must provide at least 7.6 cm (3.0 in) of clearance
at the front and back of the server.
CAUTION:
The computer is designed to be electrically grounded (earthed). To ensure proper
operation, plug the AC power cord into a properly grounded AC outlet only.
Audience Assumptions
1