HP EliteOne 1000 Maintenance and Service Guide - Page 24

Removal and replacement procedures, Preparing to disassemble the computer, IMPORTANT, CAUTION

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4 Removal and replacement procedures The following sections provide information about disassembling various components of the computer. Preparing to disassemble the computer To avoid injury and equipment damage, always complete the following steps in order, when opening the computer. 1. Remove all removable media, such as USB flash drives, from the computer. 2. Turn off the computer properly through the operating system, and turn off any external devices. 3. Disconnect the power cord from the AC outlet and disconnect any external devices. IMPORTANT: Regardless of the power-on state, voltage is always present on the system board as long as the system is plugged into an active AC outlet. You must disconnect the power cord and wait approximately 30 seconds for the power to drain to avoid damage to the internal components of the computer. 4. Disconnect all other attached cables from the back of the computer. CAUTION: Beware of sharp edges inside the chassis. 16 Chapter 4 Removal and replacement procedures

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4
Removal and replacement procedures
The following sections provide information about disassembling various components of the computer.
Preparing to disassemble the computer
To avoid injury and equipment damage, always complete the following steps in order, when opening the
computer.
1.
Remove all removable media, such as USB
flash
drives, from the computer.
2.
Turn
off
the computer properly through the operating system, and turn
off
any external devices.
3.
Disconnect the power cord from the AC outlet and disconnect any external devices.
IMPORTANT:
Regardless of the power-on state, voltage is always present on the system board as long
as the system is plugged into an active AC outlet. You must disconnect the power cord and wait
approximately 30 seconds for the power to drain to avoid damage to the internal components of the
computer.
4.
Disconnect all other attached cables from the back of the computer.
CAUTION:
Beware of sharp edges inside the chassis.
16
Chapter 4
Removal and replacement procedures