IBM 560E System Board Devices and Features, Lists System Board devices and their features

System Board Devices and Features

Figure 1-2	lists the	system		board devices and their features. The
IBM Personal System/2 Hardware Interface Technical Reference
describes	devices	common	to	PS/2 products by type number.
Device	Type	Features
Microprocessor	–	ThinkPad	560:

Intel** Pentium**

Ÿ100/120/133MHz

Ÿ16KB on-chip cache

ThinkPad 560E:

Intel Pentium processor with the MMX technology

Ÿ

150/166MHz

Ÿ 32KB on-chip cache

Level

2

cache

–

ThinkPad

560:

None

ThinkPad

560E:

256KB

System

timers

1

Channel

0: system

timer

Channel

1: refresh

generation

Channel

2: tone generator for speaker

ROM

subsystem

–

128KB

by

4

banks

(1KB

equals 1024 bytes)

RAM

subsystem

–

ThinkPad

560:

8

to

40MB

(1MB

equals

1 048 576

bytes)

ThinkPad

560E:

16MB (standard). Expandable up to 48MB

with

the

32MB

DIMM.

Expandable

up

to 80MB

with the

2-bank-type

64MB

DIMM.

CMOS

RAM

–

128

bytes

CMOS

RAM

with

real-time

subsystem

clock/calendar

Figure

1-2

(Part 1

of

3).

System Board Devices and Features

ThinkPad 560/560E System Overview 1-3