Product overview
This section presents the following product-unique
information:
v “Specifications”
v “Status indicators” on page 42
v “FRU Tests” on page 44
v “Fn key combinations” on page 46
Specifications
The following table lists the specifications of the ThinkPad
T20, T21, T22 and T23 series:
Feature Description
Processor T20
v Mobile Intel
®
Pentium
®
III processor 650 MHz
v Mobile Intel
®
Pentium
®
III processor 700 MHz
v Mobile Intel
®
Pentium
®
III processor 750 MHz
T21
v Mobile Intel
®
Pentium
®
III processor 750 MHz
v Mobile Intel
®
Pentium
®
III processor 800 MHz
v Mobile Intel
®
Pentium
®
III processor 850 MHz
T22
v Mobile Intel
®
Pentium
®
III processor 800 MHz
v Mobile Intel
®
Pentium
®
III processor 900 MHz
v Mobile Intel
®
Pentium
®
III processor 1 GHz
T23
v Mobile Intel
®
Pentium
®
III processor 866
MHz-M
v Mobile Intel
®
Pentium
®
III processor 1.13
GHz-M
Bus
architecture
PCI Bus
Memory
(standard)
T20, T21, T22
v 128 MB (PC100) (on the system board)
T23
v 128 MB (PC133) (on the system board)
Memory
(optional)
T20, T21, T22
v 64 MB, 128 MB, or 256 MB DIMM card
(maximum of 512 MB)
T23
v 64 MB, 128 MB, 256 MB, or 512 MB DIMM
card (maximum of 1024 MB)
CMOS RAM 242 bytes
(continued)
Product overview
ThinkPad T20, T21, T22 and T23 series 39
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