Preparing To Remove Or Replace Components; Powering Down The System; Dismounting The System - HPE Edgeline EL300 Maintenance And Service Manual

2.72 kg
5.99 lb

Preparing to remove or replace components

Before performing certain service procedures and for accessing some components, you must perform one or more of the
following procedures:
Procedure
1. Power down the system.
2. Dismount the system.
3. Remove the security cover.
4. Remove the drive cage.

Powering down the system

Before powering down the system for any upgrade or maintenance procedures, you must back up critical system data and
programs.
Use one of the following methods to power down the system:
• Press and release the Power On/Standby button.
This method initiates a controlled shutdown of applications and the OS before the system enters standby mode.
• Press and hold the Power On/Standby button for more than 4 seconds to force the system to power down.
This method forces the system to power down without properly exiting applications and the OS. If an application stops
responding, you can use this method to force a shutdown.
Before proceeding, you must ensure that the system is in standby mode by verifying that the system power LED is off.

Dismounting the system

Depending on the selected mounting option:
20 Removal and replacement procedures
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 disconnect power
from the system completely.