HP Desktop Pro A G2 Maintenance And Service Manual page 6

4 Removal and replacement procedures ........................................................................................................... 16
Preparation for disassembly ............................................................................................................................... 16
Access panel ......................................................................................................................................................... 17
System board connections .................................................................................................................................. 18
WLAN module ...................................................................................................................................................... 19
Expansion cards ................................................................................................................................................... 20
Front bezel ........................................................................................................................................................... 23
Removing bezel blank ......................................................................................................................................... 24
Drives ................................................................................................................................................................... 25
Memory ................................................................................................................................................................ 33
Fan duct ................................................................................................................................................................ 36
Fan sink ................................................................................................................................................................ 37
Processor ............................................................................................................................................................. 39
Power supply ....................................................................................................................................................... 40
Wireless antenna ................................................................................................................................................. 42
System board ....................................................................................................................................................... 43
5 Troubleshooting without diagnostics ............................................................................................................ 45
Safety and comfort .............................................................................................................................................. 45
Before you call for technical support .................................................................................................................. 45
Helpful hints ........................................................................................................................................................ 46
Solving general problems .................................................................................................................................... 47
Solving power problems ...................................................................................................................................... 50
Solving hard drive problems ................................................................................................................................ 51
Solving media card reader problems ................................................................................................................... 53
Solving display problems .................................................................................................................................... 54
Solving audio problems ....................................................................................................................................... 58
Solving printer problems ..................................................................................................................................... 60
Solving keyboard and mouse problems .............................................................................................................. 61
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Drive positions ................................................................................................................................... 25
Removing and installing drives ......................................................................................................... 25
Removing the optical drive ............................................................................................. 25
Installing an optical drive ............................................................................................... 27
Removing the drive cage ................................................................................................ 28
Installing the drive cage .................................................................................................. 29
Removing a 3.5-inch hard drive ...................................................................................... 29
Installing a 3.5-inch hard drive ....................................................................................... 30
Removing a 2.5-inch hard drive ...................................................................................... 31
Installing a 2.5-inch hard drive ....................................................................................... 31
Populating DIMM sockets .................................................................................................................. 33
Removing and installing DIMMs ........................................................................................................ 34