IBM ThinkPad T23
The ThinkPad T23 is a 14" Pentium III-based laptop that was released in 2001. It used the newer Tualatin Pentium III processors as compared to the T20, T21, and T22 which all used Coppermine chips. IBM took the opportunity with the motherboard redesign to also upgrade the graphics chip, add a second USB port, and add in support for Ultrabay 2000 Plus modules.
Specifications
| Spec | Details |
|---|---|
| CPU | CPU Type: Socket 478 (Tualatin) Intel Pentium III-M @866MHz, 1.0GHz, 1.13GHz, or 1.2GHz |
| Chipset | Intel 830MP |
| RAM | Type: PC133 SDRAM, 2 slots Standard: 128 or 256MB Maximum: 1GB |
| Hard Disk | 2.5" IDE Uses proprietary adapter?: No Standard: 15, 20, 30, 40, 48, or 60GB |
| Display Options | - 13.3" TFT LCD @1024x768 - 14.1" TFT LCD @1024x768 - 14.1" TFT LCD @1400x1050 |
| Graphics Chipset | S3 SuperSavage IX/C VRAM: 16MB |
| Audio | Crystal CS4299 (AC97) - Stereo Speakers - Microphone |
| Main Battery | Lithium Ion (6 cell) |
| CMOS Battery | Proprietary Lithium |
| Power Supply | Barrel Jack (16V) |
| Disk Drives | Ultrabay 2000 Plus supporting the following: - 3.5" 1.44MB Floppy Drive - Various CD & DVD Drives - ZIP Drive - LS-120 Drive - 2nd HDD - 2nd Battery - Device Carrier - Slide-out numeric keypad - Workpad c500 Cradle |
| PC Cards | 2x PCMCIA/CardBus Slots |
| Networking | - Modem - 10/100 Ethernet (Optional) - WiFi (Optional) |
| Other I/O | - 1x Parallel - 1x Serial - 1x VGA Out - 1x PS/2 - 1x Dock Connector - 2x USB 1.x - 1x S-Video Out - 1x UltraPort - 1x Line In - 1x Mic In - 1x Headphone Out - Infrared |
| BIOS | IBM BIOS |
| Pointing Device | TrackPoint |
Resources
 Drivers |
 Service Manual |
Withdrawn Models PSREF |
|---|
Common Faults & Maintenance
Solder Failures
While overall far more reliable than the T20/T21/T22 thanks to not using the ADP3421 power regulator IC that causes the "blink of death" issue on those laptops, the T23 still has some minor problems with its motherboard. Mainly, a couple of inductors on the motherboard are known to be poorly attached and can sometimes fall off. If you have a T23 that won't power on, check that that isn't your problem. I believe the RAM slots also sometimes suffer from cracked solder, although not nearly to the extent of its successor system, the ThinkPad T30.
Beyond this and the expected rubber coating degredation, the T23 is a solid and reliable laptop.
Page last updated (MM/DD/YYYY): 11/17/2024
Update Reason: page created
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