IBM ThinkPad 500
The ThinkPad 500 was a subnotebook that was released in June 1993.
Specifications
| Spec | Details |
|---|---|
| CPU | CPU Type: Unknown IBM 486SLC2 @50MHz |
| Chipset | Unknown |
| RAM | Type: IC DRAM Standard: 4MB Maximum: 12MB |
| Hard Disk | 2.5" IDE Uses proprietary adapter?: Yes Standard: 85 or 170MB |
| Display Options | 7.4" Passive Matrix Grayscale @640x480 |
| Graphics Chipset | Western Digital WD90C26 VRAM: Unknown |
| Audio | PC Speaker |
| Main Battery | - Sealed Lead Acid (Standard) - NiMH (Optional, later became standard) |
| CMOS Battery | Soldered Lithium coin cell |
| Power Supply | Barrel Jack |
| Disk Drives | None |
| PC Cards | 1x PCMCIA Slot (Type II) |
| Networking | None |
| Other I/O | - 1x Parallel - 1x External Floppy - 1x PS/2 (I think) |
| BIOS | IBM |
| Pointing Device | TrackPoint II |
Image from laptop.pics. Used with permission.
Resources
 Service Manual |
Withdrawn Models PSREF |
|---|
Common Faults & Maintenance
Brittle Plastic
The plastic used on the ThinkPad 500 has become very brittle with age, and the plastic around the hinges will crack over time. If you have one of these then you'll need to reinforce the hinge mounts with some sort of epoxy.
Bad Capacitors
The DC/DC board inside the 500 has some through hole electrolytic capacitors that should probably be replaced. I'm not sure if they actually leak commonly, but stuff from this era just can't be trusted anymore. You should also check the display to make sure it doesn't have any leaky caps on it.
Other Notes
The LCD on the 500 can develop Vinegar Syndrome.
Page last updated (MM/DD/YYYY): 11/16/2024
Update Reason: page converted to php
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