Server Warnings And Cautions; Preparation Procedures; Power Down The Server - HP HPE ProLiant ML350e Gen8 Maintenance And Service Manual

Server warnings and cautions

Before installing a server, be sure that you understand the following warnings and cautions.
WARNING: To reduce the risk of electric shock or damage to the equipment:
• 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.
• Unplug the power cord from the power supply to disconnect power to the equipment.
• Do not route the power cord where it can be walked on or pinched by items placed against
it. Pay particular attention to the plug, electrical outlet, and the point where the cord extends
from the server.
WARNING: To reduce the risk of personal injury from hot surfaces, allow the drives and the
internal system components to cool before touching them.
CAUTION: Do not operate the server for long periods with the access panel open or
removed. Operating the server in this manner results in improper airflow and improper cooling
that can lead to thermal damage.

Preparation procedures

To access some components and perform certain service procedures, you must perform one or more of
the following procedures:
•
Power down the server (on page 24).
•
Power up the server (on page 25).
•
Unlock the front bezel (on page 25).
•
Remove the front bezel (on page 26).

Power down the server

Before powering down the server for any upgrade or maintenance procedures, perform a backup of
critical server data and programs.
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 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.
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.
Removal and replacement procedures 24