IBM ThinkPad T20 2647 User manual
For drivers: http://www.us.pc.ibm.com/support/thinkpad/thinkpad_support.html 1
1-13-00
T20
T20
21U/61U
41U/81U
The purpose of this spreadsheet is to provide a guide to the compatibility within and between the ThinkPad T Series models.
The spreadsheet contains information that can be used to highlight the compatibilities and differences between ThinkPad models when doing transition planning and/or to build an initial software image.
This package is NOT intended to be a list of the latest levels of the software drivers needed to build an image. Although it is current as it is being created, it will become out of date over time.
For the current list of the levels of the latest software drivers, see the support page on the IBM ThinkPad web site at:
Supported OS Version
PC-DOS 7.0 No No
PC DOS 2000 No No
MS-DOS 6.22 No No
Windows 3.11 No No
Windows for WG 3.11 No No
Windows 95 (OSR1 - Win95 Retail + Service Pack 1) Yes Yes
Windows 95 (OSR2/2.1 - adds USB and new IE browser) Yes Yes
Windows 98 Yes Yes
Windows 98 SE Yes Yes
For drivers: http://www.us.pc.ibm.com/support/thinkpad/thinkpad_support.html 2
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T20
T20
21U/61U
41U/81U
Windows NT Workstation 3.51 No No
Windows NT Workstation 4.0 Service Pack 3 No No
Windows NT Workstation 4.0 Service Pack 4 Yes Yes
Windows NT Workstation 4.0 Service Pack 5 Yes Yes
Windows NT Workstation 4.0 Service Pack 6a Yes Yes
Windows 2000 Yes Yes
OS/2 Warp 4.0 Yes Yes
System Utility (ThinkPad Features / Configuration)
Utility Diskette for DOS,Personalization Version 4.18 Version 4.18
Utility Diskette for Win3.1 N/A N/A
Utility Diskette for Win95 N/A N/A
Utility Diskette for Win95/98 N/A N/A
Utility Diskette for Win95/98/2000 Version 1.14 Version 1.14
Utility Driver Disk for Win95 N/A N/A
Win95 Supplement File Disk II N/A N/A
Win98 Supplement File Disk II N/A N/A
Utility Diskette for Win98 Disk I N/A N/A
Utility Diskette for Win98 Disk II N/A N/A
Utility Diskette for OS/2 Warp N/A N/A
Utility Diskette for WinNT Version 4.17 Version 4.17
Utility Data Diskette I Version 1.02 Version 1.02
For drivers: http://www.us.pc.ibm.com/support/thinkpad/thinkpad_support.html 3
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T20
T20
21U/61U
41U/81U
Utility Data Diskette II N/A N/A
Utility Data Diskette II N/A N/A
Utility Data Diskette I for Win95/98 N/A N/A
Utility Data I for Win95/98/2000 Version 1.11 Version 1.11
Utility Data Diskette I for Win 98 N/A N/A
Utility Data Diskette II for Win 98 N/A N/A
Utility Data Diskette III for Win 98 N/A N/A
IDE Driver Diskette Version 1.05 Version 1.05
Utility Driver III for Win95/98 APM Version 1.00 Version 1.00
OS/2 Warp Install Diskette I Version 1.05 Version 1.05
OS/2 Warp Install Diskette II Version 1.00 Version 1.00
Personalization Data Update Disk N/A N/A
Utilityb Features for Win95/98/NT4/2000 Version 1.00 Version 1.00
IBM PM Driver for Win2000 Version 1.10 Version 1.10
On Screen Display for Win95/98/NT4/2000 Version 2.01.00 Version 2.01.00
Hibernation Utility for Standalone boot Version 4.03A Version 4.03A
Hibernation Utility (Phdisk) for Win95/98/NT Version 1.01.017 Version 1.01.017
SpeedStep Technology Applet Version 1.10 Version 1.10
SpeedStep Technology Applet for OS/2 Version 1.0 Version 1.0
Available in OS/2 DDPak Online Web
System Board
For drivers: http://www.us.pc.ibm.com/support/thinkpad/thinkpad_support.html 4
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T20
T20
21U/61U
41U/81U
Intel MMO No (uPGA) No (uPGA)
System Bus PCI PCI
HDD Interface Enhanced IDE Enhanced IDE
I/O Port Serial 16550 Compatible 16550 Compatible
Parallel ECP/EPP ECP/EPP
USB Controller Intel 82371AB(PIIX4) Intel 82371AB(PIIX4)
BIOS All BIOS are AT-compatible AT Compatible AT Compatible
System BIOS Updates Version 1.01 Version 1.01
Model/Sub-model
fixed with FC/01 for all systems
FC/01 FC/01
Memory Map
F0000-FFFFF BIOS BIOS
E0000-EFFFF
D0000-DFFFF
C7FFF-CFFFF
Video BIOS (C7FFF-C9FFF)
Video BIOS (C7FFF-C9FFF)
C0000-C7FFF Video BIOS Video BIOS
A0000-BFFFF Video RAM Video RAM
Memory
Data Path 64-bit 64-bit
Voltage 3.3V 3.3V
For drivers: http://www.us.pc.ibm.com/support/thinkpad/thinkpad_support.html 5
1-13-00
T20
T20
21U/61U
41U/81U
Technology SDRAM SDRAM
Battery
Type Li-Ion Li-Ion
Battery Installation Check Utility
LCD
13.3" TFT 1024x768 14.1" TFT 1024x768
Docking
SelectaDock I / II /III
Diagnostic Diskette N/A N/A
ThinkPad Dock
Diagnostic Diskette N/A N/A
For drivers: http://www.us.pc.ibm.com/support/thinkpad/thinkpad_support.html 6
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T20
T20
21U/61U
41U/81U
Graphics
Chipset S3 Savage IX8 S3 Savage IX8
VRAM/DRAM 8.0MB SGRAM 8.0MB SGRAM
Graphics Data Path 64 bits 64 bits
H/W Expansion Yes Yes
DPMS Yes Yes
Video BIOS
LCD Display Modes (See below for VESA display modes.)
VGA 60Hz 60Hz
Vesa101 60Hz 60Hz
Vesa111 60Hz 60Hz
*1 Vesa112 60Hz 60Hz
Vesa102 60Hz 60Hz
Vesa103 60Hz 60Hz
Vesa114 60Hz 60Hz
*1 Vesa115 60Hz 60Hz
Vesa104 60Hz 60Hz
Vesa105 60Hz 60Hz
Vesa117 60Hz 60Hz
Vesa118 60Hz 60Hz
Vesa106 60Hz (*24) 60Hz (*24)
For drivers: http://www.us.pc.ibm.com/support/thinkpad/thinkpad_support.html 7
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T20
T20
21U/61U
41U/81U
Vesa107 60Hz (*24) 60Hz (*24)
CRT Display Modes (See below for VESA display modes.)
VGA 60/75/85Hz 60/75/85Hz
Vesa101 60/75/85Hz 60/75/85Hz
Vesa111 60/75/85Hz 60/75/85Hz
*1 Vesa112 60/75/85Hz 60/75/85Hz
Vesa102 60/75/85Hz 60/75/85Hz
Vesa103 60/75/85Hz 60/75/85Hz
Vesa114 60/75/85Hz 60/75/85Hz
*1 Vesa115 60/75/85Hz 60/75/85Hz
Vesa104 60/70/75/85Hz 60/70/75/85Hz
Vesa105 60/70/75/85Hz 60/70/75/85Hz
Vesa117 60/70/75/85Hz 60/70/75/85Hz
Vesa118 60/70/75/85Hz 60/70/75/85Hz
Vesa106 60/75/85Hz 60/75/85Hz
Vesa107 60/75/85Hz 60/75/85Hz
*1 Win 3.11 Video Features N/A N/A
*1 Win 95 Video Features N/A N/A
Win 95/98 Video Features Version 7.02.86 Version 7.02.86
*1 OS/2 Warp 4.0 Video Features Version 7.00.14 Version 7.00.14
For drivers: http://www.us.pc.ibm.com/support/thinkpad/thinkpad_support.html 8
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T20
T20
21U/61U
41U/81U
*1 WinNT3.51 Video Features N/A N/A
*1 WinNT4.0 Video Features Version 7.10.15 Version 7.10.15
Win2000 Video Features Version 7.30.24 Version 7.30.24
LCD 800x600 256/64K/16M 800x600 256/64K/16M
1024x768 256/64K/16M 1024x768 256/64K/16M
640x480 256/64K/16M 640x480 256/64K/16M
800x600 256/64K/16M 800x600 256/64K/16M
CRT 1024x768 256/64K/16M 1024x768 256/64K/16M
1280x1024 256/64K/16M 1280x1024 256/64K/16M
PCMCIA
IBM PC Card Director utility
Dos/Win N/A N/A
Win95 N/A N/A
OS/2 Yes Yes
Available in OS/2 DDPak Online Web
For drivers: http://www.us.pc.ibm.com/support/thinkpad/thinkpad_support.html 9
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T20
T20
21U/61U
41U/81U
WinNT *13 N/A N/A
SystemSoft CardSoft for DOS
CardWizard for Win3.1
CardWorks for Win95
CardWizard for WinNT Version 5.00.13m Version 5.00.13m
PC Card Driver for Minimum DOS Support
PC Card Driver for DOS Version 1.00 Version 1.00
Slot TII x 2 or TIII x 1 TII x 2 or TIII x 1
CardBus Yes Yes
ZV Port Enabled Yes / No (OS/2 Warp 4) Yes / No (OS/2 Warp 4)
Audio
CS4624B +CS4297A CS4624B +CS4297A
Driver DOS/Win3.11 N/A N/A
Win95 N/A N/A
Win95/Win98 Version 4.11.2884 Version 4.11.2884
Warp Version 3.05 Version 3.05
WinNT PS2081A PS2081A
Voyetra AudioStation Disk for Win31
N/A N/A
Win2000 Version 5.12.01.3031 Version 5.12.01.3031
For drivers: http://www.us.pc.ibm.com/support/thinkpad/thinkpad_support.html 10
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T20
T20
21U/61U
41U/81U
MIDI
I/F CS4624B +CS4297A CS4624B +CS4297A
Driver DOS/Win N/A N/A
Win95 N/A N/A
Win95/Win98 Version 4.11.2884 Version 4.11.2884
Warp Version 3.05 Version 3.05
WinNT PS2081A PS2081A
Win2000 Version 5.12.01.3031 Version 5.12.01.3031
Wave Table Audio
DOS/Win
Win95
Warp
WinNT
Integrated Modem
Drivers *6 DOS/Win3.11 N/A N/A
Win95 N/A N/A
Win95 / 98 N/A N/A
Win95 / 98 / NT Version 5.74 Version 5.74
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