HP omnibook 4000 Service Manual

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Memory
Main Memory
DX2/50 MHz, Model 260 (F1081A)
DX4/100 MHz, Model 810 (F1160A)
All other models
4MB RAM
16MB RAM
8MB
Max Possible RAM
32MB
Type of memory boards
HP Proprietary boards, 2 user accessible slots on the
bottom case.
Expansion Memory
board  options
4-MB  (HP # F1076A)
8-MB  (HP # F1077A)
16-MB (HP # F1078A)
Cycle time
70ns
Mass storage
The hard disk drive can be removed by the user for easy upgrades.  The hard
drive is located on the bottom case and with the removal of one screw the hard
drive can be replaced.
Hard drive manufacturer:  Toshiba for all capacities
Flexible disk
drive
Internal 3.5 inch, 1.44-MB flexible disk drive is standard on all models.  The
flexible disk drive can be easily removed by the user and replaced with an
additional battery pack to double battery life.  This is part of the modularity
features of the OmniBook 4000.
Manufacturer:  Canon (subject to change)
Built-in I/O
25 pin bi-directional ECP an EPP parallel port
SVGA out (up to 1024 x 768 x 256 colors) with simultaneous
viewing
115,000-b/s bi-directional infrared port.
Expansion Bus Connector for connecting to enhance port replicator
 
(F1090A)
6-pin mini-DIN keyboard or PS/2 mouse
Headphone/stereo-out port
Microphone port
Stereo-in port