IBM ThinkPad 355 Series
The ThinkPad 355 Series were consumer-oriented 486SX-based laptops that were released in 1994.
Specifications
| Spec | ThinkPad 355 | ThinkPad 355CS | ThinkPad 355C |
|---|---|---|---|
| Release Date | June 1994 | July 1994 | |
| CPU | CPU Type: Unknown Intel 486SX @33MHz | ||
| Chipset | Unknown | ||
| RAM | Type: IC DRAM Standard: 4MB Maximum: 20MB | ||
| Storage | 2.5" IDE Requires Adapter: I think so Standard: 125MB | 2.5" IDE Requires Adapter: I think so Standard: 170 or 250MB | 2.5" IDE Requires Adapter: I think so Standard: 125 or 250MB |
| Display Options | 9.5" Passive Matrix Grayscale @640x480 | 9.5" Passive Matrix Color @640x480 | 8.4" Active Matrix Color @640x480 |
| Graphics Chipset | Western Digital WD90C24A2 VRAM: 1MB | ||
| Audio | PC Speaker | ||
| Main Battery | NiMH | ||
| CMOS Battery | - Proprietary Lithium CMOS Battery - 3-cell NiCad Reserve Battery | ||
| Power Supply | Proprietary 4-pin | ||
| Media Drives | 3.5" 1.44MB Floppy Drive (removeable) | ||
| PC Cards | 1x PCMCIA Slot | ||
| Networking | Modem | ||
| Other I/O | - 1x Parallel - 1x Serial - 1x VGA Out - 1x PS/2 - 1x Dock Connector | ||
| BIOS | IBM BIOS w/ Easy Setup | ||
| Pointing Device | TrackPoint II | ||
Resources
 Service Manual |
Withdrawn Models PSREF |
|---|
Common Faults & Maintenance
Likely suffers from the same set of faults as the 750/755 Series, which it shares much of the same design of. That's gonna mean that it has a NiCad reserve battery inside that leaks, the main battery can leak, and it might also have issues with bad capacitors.
The 355 Series ThinkPads are NOT rubber coated, so you won't have to deal with them becoming sticky.
Gallery
ThinkPad 355C - Photos from solidpro.
Page last updated (MM/DD/YYYY): 02/21/2025
Update Reason: page converted to php
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