IBM ThinkPad G40
The ThinkPad G40 is a desktop replacement laptop that was released by IBM in 2003. They used desktop Intel Pentium 4 or Celeron processors, and were thick and heavy, weighing around 8lbs. Despite being a desktop replacement laptop, the G40 lacked dedicated graphics, and were mainly pitched as a lower end option, which is strange. My guess is that they were banking on advertising high CPU performance while keeping other costs down.
The G40 was manufactured for IBM by Quanta.
Specifications
| Spec | Details |
|---|---|
| CPU | CPU Type: Socket 478 - Intel Pentium 4 @2.2, 2.4, 2.6, 2.8, or 3.0GHz - Intel Celeron @2.0, 2.2, 2.4, 2.5, or 2.6GHz |
| Chipset | Unknown |
| RAM | Type: PC2100 DDR, 2 slots Standard: 128, 256, or 512MB Maximum: 1GB |
| Hard Disk | 2.5" IDE Uses proprietary adapter?: Unknown Standard: 20, 30, 40, or 60GB |
| Display Options | - 14.1" TFT LCD @1024x768 - 15.0" TFT LCD @1024x768 - 15.0" TFT LCD @1400x1050 |
| Graphics Chipset | Intel Extreme Graphics VRAM: Up to 64MB shared/SMA |
| Audio | ICH AC97 - Mono Speaker - Microphone |
| Main Battery | Lithium Ion (6 or 12 cell) |
| CMOS Battery | Proprietary Lithium |
| Power Supply | Proprietary 4-pin (ThinkPad G40/G41) |
| Disk Drives | 3 Spindle - 3.5" 1.44MB Floppy Drive - CD-ROM, DVD-ROM, or DVD/CD-RW Drive |
| PC Cards | 1x PCMCIA/CardBus Slot |
| Networking | - Modem - 10/100 Ethernet - WiFi (Optional) |
| Other I/O | - 4x USB 2.0 - 1x Parallel - 1x VGA Out - 1x PS/2 - 1x Headphone Out - 1x Mic In |
| BIOS | IBM BIOS |
| Pointing Device | TrackPoint |
Resources
 Drivers |
 Service Manual |
 Schematic |
|---|
Common Faults & Maintenance
Hinge Plastic Failure
The casing around the display hinges can form stress cracks with use due the age of the plastic. As the G40 grows older, this will likely become more and more common as the plastic becomes brittle. This issue can likely be mitigated by applying epoxy to the inside and outside of the display case to reinforce it. This is an ugly fix, but it should work for a unit that's broken.
Gallery
Page last updated (MM/DD/YYYY): 11/16/2024
Update Reason: page converted to php
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