HwMuseum | Index

IPC CORPORATION, LTD.

IPC MBPOSIIIS

Processor

80486SX/80487SX/80486DX/80486DX2

Processor Speed

25/33/50(internal)/66(internal)MHz

Chip Set

Acer

Max. Onboard DRAM

33MB

Cache

None

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

32-bit external memory card, 32-bit system memory card, 32-bit VESA local bus slots (2), 32-bit PCI slots (2), bus mouse port, floppy drive interface, game port, green PC connector, IDE interface, IDE interfaces (2), SCSI connector, parallel port, PS/2 mouse port, serial ports (2), serial port, VGA feature connector, VGA port, VRM connector, cache slot

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Numeric display power connector

J1

Speaker

J11

Serial port 2/external floppy

J2

Keyboard controller interface

J13

Floppy drive interface

J3

Parallel port

J14

IDE interface

J4

Serial port 1

J15

Numeric display port connector

J5

Scanner port

J16

Internal numeric display connector

J6

External keyboard connector

J17

External numeric display connector

J8

Reset switch

JP9

Printer power output connector

J9

Printer power input connector

PS2

Drawer port connector

J10

Riser slot

SL1

Note: The location of J5 is unidentified.

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Floppy drive set as B drive

J7

Open

 

Floppy drive set as A drive

J7

Closed

»

Buzzer enabled

J18

Closed

 

Buzzer disabled

J18

Open

 

Monitor type select monochrome

JP1

Open

 

Monitor type select color/EGA/VGA

JP1

Closed

»

5v to external floppy drive disabled

JP2

Open

 

5v to external floppy drive enabled

JP2

Closed

»

12v to external floppy drive disabled

JP3

Open

 

12v to external floppy drive enabled

JP3

Closed

»

Factory configured - do not alter

JP4

N/A

»

Drawer port voltage select 12v

JP5

pins 1 & 2 closed

 

Drawer port voltage select 25v

JP5

pins 2 & 3 closed

»

IDE interface enabled

JP6

Closed

 

IDE interface disabled

JP6

Open

»

Reset disabled

JP9

Open

 

Reset enabled

JP9

Closed

 

CMOS memory clear BQ3287 AMT

JP10

pins 1 & 2 closed

 

CMOS memory clear BQ3287 MT

JP10

pins 2 & 3 closed

»

Keylock level 1 control floppy access disabled

JP12

pins 2 & 3 closed

 

Keylock level 1 control floppy access enabled

JP12

pins 1 & 2 closed

»

Parallel port IRQ select IRQ7

JP13

pins 2 & 3 closed

 

Parallel port IRQ select IRQ5

JP13

pins 1 & 2 closed

»

12v to scanner port disabled

JP18

Open

 

12v to scanner port enabled

JP18

Closed

»

Keylock level 1 control NVR write access disabled

JP19

pins 1 & 2 closed

 

Keylock level 1 control NVR write access enabled

JP19

pins 2 & 3 closed

»

Non volatile RAM type select 128KB

JP21

Open

 

Non volatile RAM type select 8/32KB

JP21

Closed

»

Factory configured - do not alter

JP30

N/A

USER CONFIGURABLE SETTINGS (CON’T)

Function

Jumper

Position

»

Factory configured - do not alter

JP1

Unidentified

»

Factory configured - do not alter

JP2

Unidentified

»

Factory configured - do not alter

JP31

pins 2 & 3 closed

»

Factory configured - do not alter

JP32

N/A

»

Factory configured - do not alter

JP36

Closed

»

Floppy drive interface enabled

JP37

pins 1 & 2 closed

 

Floppy drive interface disabled

JP37

pins 2 & 3 closed

Note: Jumpers JP1 and JP2 are used for DMA channel selection. Settings are unidentified.

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

1MB

(2) 256KB

NONE

NONE

2MB

(2) 256KB

(1) 256K x 36

NONE

3MB

(2) 256KB

(1) 256K x 36

(1) 256K x 36

5MB

(2) 256KB

(1) 1M x 36

NONE

9MB

(2) 256KB

(1) 1M x 36

(1) 1M x 36

17MB

(2) 256KB

(1) 4M x 36

NONE

33MB

(2) 256KB

(1) 4M x 36

(1) 4M x 36

Note: Banks 0 is factory installed and is not configurable.

CPU TYPE CONFIGURATION

Type

JP33

JP34

JP35

80486SX

pins 2 & 3 closed

Open

Open

80487SX

pins 1 & 2 closed

pins 1 & 2 closed

Closed

80486DX

pins 1 & 2 closed

pins 2 & 3 closed

Closed

80486DX2

pins 1 & 2 closed

pins 2 & 3 closed

Closed

KEYLOCK LEVEL 1 OR 5 TO CONTROL NVR READ ACCESS CONFIGURATION

Setting

JP20

JP22

»

Disabled

pins 1 & 2 closed

pins 1 & 2 closed

 

Enabled

pins 2 & 3 closed

pins 2 & 3 closed

I/O ADDRESS CONFIGURATION

Address

JP17

»

100H

pins 1 & 2 closed

 

110H

pins 3 & 4 closed

 

120H

pins 5 & 6 closed

 

130H

pins 7 & 8 closed

 

140H

pins 9 & 10 closed

 

150H

pins 11 & 12 closed

 

160H

pins 13 & 14 closed

 

170H

pins 15 & 16 closed

PARALLEL PORT CONFIGURATION

LPT

JP23

JP25

»

LPT2

pins 1 & 2 closed

pins 1 & 2 closed

 

LPT1

pins 1 & 2 closed

pins 2 & 3 closed

 

LPT3

pins 2 & 3 closed

pins 1 & 2 closed

 

Disabled

pins 2 & 3 closed

pins 2 & 3 closed

SERIAL PORT CONFIGURATION

UART 1

UART 2

JP11

JP15

»

COM1

COM2

pins 1 & 2 closed

pins 2 & 3 closed

 

COM1

COM4

pins 1 & 2 closed

pins 1 & 2 closed

 

COM3

COM4

pins 2 & 3 closed

pins 2 & 3 closed

 

COM2

COM3

pins 2 & 3 closed

pins 1 & 2 closed

UART CONFIGURATION

UART 1

UART 2

JP24

JP26

JP27

Enabled

Enabled

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

Enabled

Disabled

pins 2 & 3 closed

pins 1 & 2 closed

pins 1 & 2 closed

UART 2

UART 1

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

Disabled

UART 1

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

Disabled

Enabled

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

UART 2

Disabled

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

Disabled

Disabled

pins 2 & 3 closed

pins 2 & 3 closed

N/A