HP OmniBook 4000C/4000CT

HP OmniBook 4000C/CT

The OmniBook 4000C and 4000CT are 486-based laptops that were released in early 1995. Per my information, they were a modified version of the Twinhead Slimnote 5.


Specifications

Spec Details
CPU CPU Type: Unknown
- Intel 486DX2 @50MHz
- Intel 486DX4 @75 or 100MHz
Chipset Unknown
RAM Type: Unknown
Standard: 4 or 8MB
Maximum: 32MB
Hard Disk 2.5" IDE
Uses proprietary adapter?: Unknown
Standard: 260, 340, or 520MB
Display Options - 10.3" Passive Matrix Color @640x480
- 10.4" Active Matrix Color @640x480
Graphics Chipset Western Digital WD90C24
VRAM: 1MB
Audio ESS AudioDrive 688
- Stereo Speakers
- Microphone
Main Battery NiMH
CMOS Battery Unknown
Power Supply Barrel Jack
Disk Drives Modular bay holds 3.5" 1.44MB Floppy Drive or 2nd Battery
PC Cards 2x PCMCIA Slots
Networking None
Other I/O - 1x Parallel
- 1x Serial
- 1x VGA Out
- 1x PS/2
- 1x Dock Connector
- 1x Line In
- 1x Mic In
- 1x Line Out
- Infrared
BIOS HP (SystemSoft-based)
Pointing Device Trackball

Resources


Service Manual

Common Faults & Maintenance

These laptops seem to be fairly reliable, but they used one of the worst hinge mount designs I've ever seen, and now, like most laptops from this time, the plastics are very brittle. Due to this, all of these will suffer from hinge failure if the hinges are used. It's probably possible to fix this with enough epoxy, but I haven't gotten my hands on one yet to try and see.



Page last updated (MM/DD/YYYY): 11/28/2024
Update Reason: page created

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