HP Pavilion Hdx9400 Entertainment Notebook Pc Series Service Guide

I/O address (hex)System function (shipping configuration)
220 - 22FEntertainment audio
230 - 26DUnused
26E - 26Unused
278 - 27FUnused
280 - 2ABUnused
2A0 - 2A7Unused
2A8 - 2E7Unused
2E8 - 2EFReserved serial port
2F0 - 2F7Unused
2F8 - 2FFInfrared port
300 - 31FUnused
320 - 36FUnused
370 - 377Secondary diskette drive controller
378 - 37FParallel port (LPT1/default)
380 - 387Unused
388 - 38BFM synthesizer—OPL3
38C - 3AFUnused
3B0 - 3BBVGA
3BC - 3BFReserved (parallel port/no EPP support)
3C0 - 3DFVGA
3E0 -...

SizeMemory addressSystem function
160 KB000C8000-000E7FFFUnused
64 KB000E8000-000FFFFFSystem BIOS
15 MB00100000-00FFFFFFExtended memory
58 MB04800000-07FFFFFFSuper extended memory
58 MB04800000-07FFFFFFUnused
2 MB08000000-080FFFFFVideo memory (direct access)
4 GB08200000-FFFEFFFFUnused
64 KB FFFF0000-FFFFFFFF System BIOS
System memory map specifications 95 

7
Screw listing
This section provides specification and reference information for the screws and screw locks used in the
computer. All screws and screw locks listed in this section are available in the Screw Kit, spare part number
448172-001, and the Display Screw Kit, spare part number 452309-001.
Phillips PM2.5×5.0 screw
ColorQuantityLengthThreadHead diameter
Black 49 5.0 mm 2.5 mm 5.0 mm
Where used: 2 screws that secure the display bezel to the display assembly
96 Chapter 7   Screw listing 

Where used: 10 screws that secure the display bezel to the display assembly
Where used:
(1) Two screws that secure the camera module to the display enclosure
(2) Eight screws that secure the display panel to the display enclosure
Phillips PM2.5×5.0 screw 97 

Where used: 4 screws that secure the speakers to the display enclosure
Where used:
(1) Two screws that secure the WLAN module to the system board
(2) One screw that secures the rear cover to the computer
(3) Two screws that secure the top cover to the computer
98 Chapter 7   Screw listing 

Where used: 2 screws that secure the TV tuner module to the system board
Where used:
(1) Four screws that secure the keyboard to the computer
(2) Four screws that secure the top cover to the computer
Phillips PM2.5×5.0 screw 99 

Where used: 2 screws that secure the top cover to the computer
Where used:
(1) Two screws that secure the audio/infrared board to the base enclosure
(2) One screw that secures the rear USB board to the base enclosure
(3) Two screws that secure the front USB board to the base enclosure
(4) One screw that secures the video connector board to the base enclosure
Black Phillips PM2.0×5.0 captive screw
100 Chapter 7   Screw listing 

ColorQuantityLengthThreadHead diameter
Black 11 5.0 mm 2.0 mm 4.5 mm
Where used:
(1) Six captive screws (secured by C-clips) that secure the hard drive bay cover to the computer
(2) One captive screw (secured by a C-clip) that secure the WLAN module compartment cover to the
computer
(3) Two captive screws (secured by C-clips) that secure the memory module compartment cover to the
computer
(4) Two captive screws (secured by C-clips) that secure the TV tuner module compartment cover to the
computer...

Where used: 2 captive screws (secured by C-clips) that secure the hard drives to the computer
Phillips PM3.0×4.0 screw
ColorQuantityLengthThreadHead diameter
Silver 8 4.0 mm 3.0 mm 5.0 mm
Where used: 8 screws that secure the hard drive brackets to the two hard drives
102 Chapter 7   Screw listing 

Phillips PM2.5×8.0 screw
ColorQuantityLengthThreadHead diameter
Black 26 8.0 mm 2.5 mm 5.0 mm
Where used:
(1) One screw that secures the optical drive to the computer
(2) Three screws that secure the keyboard to the computer
(3) Seven screws that secure the rear cover to the computer
Phillips PM2.5×8.0 screw 103