Preparation Procedures; Power Down The Server; Remove The Access Panel - HP ProLiant ML110 Gen9 Maintenance And Service Manual

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 25).
•
Remove the access panel (on page 25).
•
Remove the front bezel (on page 26).
•
Remove the PCI air baffle (on page 27).
•
Remove the system air baffle (on page 28).

Power down the server

Before powering down the server for any upgrade or maintenance procedures, perform a backup of critical
server data and programs.
IMPORTANT:
system.
To power down the server, use one of the following methods:
•
Press and release the Power On/Standby button.
This method initiates a controlled shutdown of applications and the OS before the server enters standby
mode.
•
Press and hold the Power On/Standby button for more than 4 seconds to force the server to enter
standby mode.
This method forces the server to enter standby mode without properly exiting applications and the OS.
If an application stops responding, you can use this method to force a shutdown.
•
Use a virtual power button selection through iLO 4.
This method initiates a controlled remote shutdown of applications and the OS before the server enters
standby mode.
Before proceeding, verify the server is in standby mode by observing that the system power LED is amber.

Remove the access panel

WARNING:
internal system components to cool before touching them.
CAUTION:
expansion slot covers, or blanks installed.
CAUTION:
precautions before beginning any installation, removal, or replacement procedure. Improper
grounding can cause electrostatic discharge.
Power down the server (on page 25).
1.
Remove all power:
2.
When the server is in standby mode, auxiliary power is still being provided to the
To reduce the risk of personal injury from hot surfaces, allow the drives and the
For proper cooling do not operate the server without the access panel, baffles,
To prevent damage to electrical components, take the appropriate anti-static
Removal and replacement procedures 25