IPC CORPORATION, LTD.

IPC OFFICEMAGIC/ IPC GREEN PC (MB486GHE#10)

Processor

80486SX/80487SX/80486DX/ODP486SX/80486DX2/Pentium Overdrive

Processor Speed

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

Chip Set

UMC

Max. Onboard DRAM

32MB

Cache

64/128/256KB

BIOS

Phoenix

Dimensions

330mm x 218mm

I/O Options

32-bit VESA local bus slots (2), green PC connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo LED

J2

Green PC connector

JP4

Speaker

J3

Green PC connector

JP5

Reset switch

J4

Green PC connector (monitor)

JP6

Power LED & keylock

J5

32-bit VESA local bus slots

SL1 & SL2

External battery

J6

Turbo switch

W23

Note: The locations of JP4, JP5 & JP6 are unidentified.

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Turbo enabled

J1

Open

 

Turbo disabled

J1

Closed

»

CPU clock select 1x

W24

Open

 

CPU clock select 2x

W24

Closed

»

Factory configured - do not alter

W25

Open

»

Monitor type select color

W26

Closed

 

Monitor type select monochrome

W26

Open

»

Battery type select internal

W27

Closed

 

Battery type select external

W27

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

4MB

(4) 1M x 9

NONE

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

128KB

(4) 32K x 8

NONE

(1) 8K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

W1

W2

W3

W4

W5

W6

W7

64KB

Closed

Closed

1 & 2

1 & 2

1 & 2

Open

Open

128KB

Closed

Closed

2 & 3

1 & 2

2 & 3

1 & 2

Open

256KB

Closed

Closed

2 & 3

2 & 3

1 & 2

2 & 3

Open

Note: Pins designated should be in the closed position..

CACHE JUMPER CONFIGURATION (CON’T)

Size

W13

W14

W15

W16

W17

W18

W19

W20

64KB

Open

Open

Open

Open

Open

Open

Open

Open

128KB

Closed

Open

Open

Open

Open

Open

Open

Closed

256KB

Closed

Closed

Open

Open

Open

Open

Closed

Closed

Note: The location of the above jumpers are unidentified.

CPU TYPE CONFIGURATION

Type

W8

W9

W10

W11

W12

80486SX (PQFP)

1 & 2

Open

Open

1 & 2

Open

80486SX (PGA)

Open

Open

2 & 3

Open

2 & 3

ODP486SX

1 & 2

Open

1 & 2, 3 & 4

Open

1 & 2

80487SX

1 & 2

Open

1 & 2, 3 & 4

Open

1 & 2

80486DX (PQFP)

2 & 3

Closed

Closed

1 & 2

Open

80486DX (PGA)

2 & 3

Open

1 & 2, 3 & 4

Open

2 & 3

80486DX2

2 & 3

Open

1 & 2, 3 & 4

Open

2 & 3

Pentium Overdrive

1 & 2

Open

1 & 2, 3 & 4

Open

1 & 2

Note: Pins designated should be in the closed position. The locations of W8 & W9 are unidentified.

CPU SPEED CONFIGURATION

Speed

JP3

25MHz

pins 2 & 3 closed

33MHz

pins 1 & 2 closed

50iMHz

pins 2 & 3 closed

66iMHz

pins 1 & 2 closed

Note: The location of JP3 is unidentified.

VESA WAIT STATE CONFIGURATION

Wait states

W22

0 wait states

Open

1 wait state

Closed

BUS SPEED CONFIGURATION

CPU speed

W21

<= 33MHz

Open

> 33MHz

Closed