HP OmniBook 5000C, 5000CT, and 5000CTS
The OmniBook 5000 Series are Pentium-based laptops that were released in 1995. They were a modified design from Twinhead.
Specifications
| Spec | OmniBook 5000C | OmniBook 5000CT | OmniBook 5000CTS |
|---|---|---|---|
| CPU | CPU Type: Unknown Intel Pentium @75, 90, or 120MHz | CPU Type: Unknown Intel Pentium @90 or 120MHz | |
| Chipset | OPTi Viper | ||
| RAM | Type: Proprietary, 2 slots Standard: 8 or 16MB Maximum: 64MB | Type: Proprietary, 2 slots Standard: 8, 16, or 32MB Maximum: 64MB | |
| Storage | 2.5" IDE Requires Adapter: Unknown Standard: 540MB, 810MB, or 1.2GB | 2.5" IDE Requires Adapter: Unknown Standard: 1.2GB | |
| Display Options | 10.4" Passive Matrix Color LCD @640x480 | 10.4" Active Matrix Color LCD @640x480 | 10.4" Active Matrix Color LCD @800x600 |
| Graphics Chipset | Chips & Technologies 65545 VRAM: 1.5MB | ||
| Audio | Crystal CS4232 - Stereo Speakers | ||
| Main Battery | NiMH | NiMH or Lithium Ion | |
| CMOS Battery | Unknown | ||
| Power Supply | Barrel Jack (12V, 3.3A, Center Negative) | ||
| Media Drives | Modular Bay supporting the following: - 3.5" 1.44MB Floppy Drive - 2nd Battery | ||
| PC Cards | 2x PCMCIA Slots (2x Type II/1x Type III) | ||
| Networking | None | ||
| Other I/O | - 1x Parallel - 1x Serial - 1x VGA Out - 1x PS/2 - 1x Dock Connector - 1x TV Out - 1x MIDI/Game Port (Requires dongle) - 1x Mic In - 1x Line In - 1x Line Out - Infrared | - 1x Parallel - 1x Serial - 1x VGA Out - 1x PS/2 - 1x Dock Connector - 1x TV Out - 1x MIDI/Game Port (Requires dongle) - 1x SCSI-2 (Optional) - 1x Mic In - 1x Line 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): 04/03/2025
Update Reason: page created
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