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PC/AT MODEL 5170-239 Motherboard Settings and Configuration






IBM CORPORATION

PC/AT MODEL 5170-239

Processor

80286

Processor Speed

6MHz

Chip Set

None

Max. Onboard DRAM

512KB

Cache

None

BIOS

IBM

Dimensions

355mm x 304mm

I/O Options

None

NPU Options

80287

CONNECTIONS

Purpose

Location

Purpose

Location

Speaker

J19

External battery

J21

Power LED & keylock

J20

   

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

14MHz adjust

C26

N/A

Monitor type select color

SW1

On

Monitor type select monochrome

SW1

Off

Note:Variable resistor C26 should not be altered except by competently trained technicians.

DRAM CONFIGURATION

Size

Bank 0

P-0

Bank 1

P-0

256KB

(16) ZA1250NL

(2) ZA1250NL

NONE

NONE

512KB

(16) ZA1250NL

(2) ZA1250NL

(16) ZA1250NL

(2) ZA1250NL

DRAM JUMPER CONFIGURATION

Size

J18

256KB

pins 1 & 2 closed

512KB

pins 2 & 3 closed

BIOS CONFIGURATION

Size

U131

2716

pins 1 & 8, 2 & 7 closed

2732

pins 3 & 6, 4 & 5 closed








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