KINGSTON TECHNOLOGY CORPORATION

486/33PD3, 25PS3, 33PD3-P70, 33PS3-P70 PROCESSOR UPGRADE BOARD

Processor

80486SX/80486DX

Processor Speed

25/33MHz

Chip Set

NONE (uses PS/2 main board chipset)

Max. Onboard DRAM

NONE

Cache

NONE

BIOS

NONE (uses PS/2 main board bios)

Dimensions

63.5mm x 50.8mm

I/O Options

NONE

NPU Options

NONE

CONNECTIONS

Purpose

Location

Processor upgrade to system board connector

P1

SYSTEM TYPE CONFIGURATION

Type

Speed

SW1/1

SW1/2

SW1/3

SW1/4

IBM PS/2 M70 (full size board)

16MHz

off

on

on

on

IBM PS/2 M70 (half size board)

16MHz

on

on

off

on

IBM PS/2 M70 (half size board)

20MHz

off

on

on

on

IBM PS/2 M70 (full size board)

25MHz

on

on

on

on

IBM PS/2 M80

16MHz

off

off

on

on

IBM PS/2 M80

20MHz

off

off

on

on

IBM PS/2 M80

25MHz

on

off

on

on

IBM PS/2 P70

20MHz

off

on

on

on

Note:If an IBM XGA adapter is installed and a display problem occurs, change switch 4 to the off position.