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T3100 | T3100e | T3100SX | T3200 | T3200SX | T3200SXC | T5200 | T5200C

Toshiba T3100SX

The Toshiba T3100SX

Technical Specifications
Year Announced 1986
Processor Intel i386SX CPU with can be switched between 16 MHz and 8 MHz (socket for 80387SX/16 math coprocessor)
RAM Standard 1 MB of RAM, expandable to 5 MB
Hard disk Comes standard with either a 40 MB hard disk or a 80 MB hard disk.
Floppy disk 3,5“ 1.44 MB High Density (HD) diskette drive
Video CGA on a 9,6 inch black/orange plasma screen with either standard maximum resolution of 640 by 200 or special high-resolution 640 by 400 which is partially compatible with Olivetti/AT&T 6300 graphics.
I/O Ports 1x RGB video (DB9), 1x parallel, 1x RS232C Serial
Internal expansion slots Proprietary expansion slot for 1200 bit/s modem, expansion chassis for 5x 8-bit ISA cards, Ethernet NIC, 2400 bit/s modem, or a 1 MB memory card.
Power Supply Powered with a separate universal AC adapter. Can be powered with 100-240V and 50/60 Hz power.
Dimensions 360 x 310 x 80 mm (W x D x H)
Weight 6.8 kg (15 lbs)
Other features Comes standard with an internal rechargeable battery for true portability. Battery life was expected to be anywhere from 2-5 hours.
Operating System Toshiba MS-DOS 4.01
Toshiba MS-DOS 3.3 (option)
Toshiba MS-DOS 3.2
OS/2 (option)
SCO UNIX (option)

System Expansion

Hard disk, audio and ethernet

You can now purchase an adapter for the Toshiba proprietary expansion slot that has XT-IDE that can support many types of IDE and CF hard disks. Optionally you can also add audio (Adlib) and ethernet support (partially NE2000 compatible). Please see the following link for the item page. 3inONEder: Toshiba Portables (affiliate link)

Questions and Answers

Q: My computer gives me a CMOS error
A: If the CMOS battery is empty, you will be prompted with the following error when you power on the machine.

**** Error in CMOS.  Bad check sum ****
*** Error in CMOS. Bad memory size ***
** Error in CMOS. Bad configuration **
Check system. Then, press [F1] key.....

Please refer to instructions here:
How do I boot my T3100e with an empty CMOS battery

How can I replace the hard drive?
Currently the best option for this laptop model seems to be to use the Toshiba proprietary expansion slot. There is a maker on eBay that sells expansion cards with XTIDE to allow many different types of IDE and CF cards to be used on the portable computer. Please see the following link for the sales article. 3inONEder: Toshiba Portables (affiliate link)



File Size Description
Toshiba T3100SX - Flyer.pdf 1.9 MB Toshiba T3100SX flyer with system specifications.
Toshiba T3100SX - Maintenance Manual.pdf 3.2 MB Toshiba T3100SX maintenance/service manual.
Toshiba - Accessory part list.pdf 26 KB Toshiba Accessory part list

Operating System

File Size Description 524 KB Toshiba MS-DOS 3.30/R3C60SC bootable disk image


File Size Description 284 KB Toshiba Diagnostics and Supplemental Diskette (R3CE0) for MS-DOS 3.30. Includes all setup programs and diagnostics utilities. Newer than R3C60. Includes support for T3200SX. 339 KB Toshiba Diagnostics and Supplemental Diskette for MS-DOS 5.0. Includes all setup programs and diagnostics utilities. 21.1 KB TEST3.EXE - Setup program for T3100, T3200, T5100 and T5200 series 1.5 KB CHAD.COM - Set Screen Attributes for T1000, T1100 PLUS, T1200 and T3100 series
View more files on this support site
toshiba_t-series_support/toshiba_t3100sx.txt · Last modified: 2023-08-31 17:32 by omolini