HP EliteDesk 800 95W G4 Maintenance and Service Guide - Page 23

Preparation for disassembly, Front bezel dust filter, filter

Page 23 highlights

Preparation for disassembly See Routine care, SATA drive guidelines, and disassembly preparation on page 8 for initial safety procedures. 1. Remove/disengage any security devices that prohibit opening the computer. 2. Remove all removable media, such as a USB flash drive, from the computer. 3. Turn off the computer properly through the operating system, then turn off any external devices. 4. 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. To prevent damage to internal components, you must disconnect the power cord from the power source before opening the computer. 5. If the computer is on a stand, remove the computer from the stand. WARNING! Beware of sharp edges inside the chassis. Front bezel dust filter Some models are equipped with an optional front bezel dust filter. You must periodically clean the dust filter so that the dust collected on the filter does not impede air flow through the computer. To remove, clean, and replace the dust filter: 1. Prepare the computer for disassembly (Preparation for disassembly on page 15). 2. To remove the dust filter, use your fingers to separate the filter from the front bezel at the tab locations shown below. 3. Use a soft brush or cloth to clean dust from the filter. If heavily soiled, rinse the filter clean with water. To install the front bezel dust filter, reverse the removal procedure. Preparation for disassembly 15

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116

Preparation for disassembly
See
Routine care, SATA drive guidelines, and disassembly preparation
on page
8
for initial safety procedures.
1.
Remove/disengage any security devices that prohibit opening the computer.
2.
Remove all removable media, such as a USB
flash
drive, from the computer.
3.
Turn
off
the computer properly through the operating system, then turn
off
any external devices.
4.
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. To prevent damage to internal components, you must
disconnect the power cord from the power source before opening the computer.
5.
If the computer is on a stand, remove the computer from the stand.
WARNING!
Beware of sharp edges inside the chassis.
Front bezel dust
filter
Some models are equipped with an optional front bezel dust
filter.
You must periodically clean the dust
filter
so that the dust collected on the
filter
does not impede air
flow
through the computer.
To remove, clean, and replace the dust
filter:
1.
Prepare the computer for disassembly (
Preparation for disassembly
on page
15
).
2.
To remove the dust
filter,
use your
fingers
to separate the
filter
from the front bezel at the tab locations
shown below.
3.
Use a soft brush or cloth to clean dust from the
filter.
If heavily soiled, rinse the
filter
clean with water.
To install the front bezel dust
filter,
reverse the removal procedure.
Preparation for disassembly
15