EPSON, INC.

ACTION TOWER 3000

Processor

80486SX/80487SX/80486SX2/80486DX/80486DX2/80486DX4/Pentium Overdrive

Processor Speed

25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz

Chip Set

Unidentified

Max. Onboard DRAM

64MB

Cache

64/128/256KB

BIOS

Unidentified

Dimensions

254mm x 218mm

I/O Options

Floppy drive interface, game port, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA port

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse port

CN1

VGA port

CN6

Game interface

CN2

Floppy drive interface

CN7

Serial port 1

CN3

IDE interface

CN8

Serial port 2

CN4

External battery

J30

Parallel port

CN5

Riser Card

SL1

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Game interface disabled

J4

pins 2 & 3 closed

 

Game interface enabled

J4

pins 1 & 2 closed

»

Parallel port LPT select LPT1

J5

pins 1 & 2 closed

 

Parallel port LPT select LPT2

J5

pins 2 & 3 closed

»

Serial port 1 COM select COM1

J6

pins 1 & 2 closed

 

Serial port 1 COM select COM3

J6

pins 2 & 3 closed

»

Serial port 2 COM select COM2

J7

pins 1 & 2 closed

 

Serial port 2 COM select COM4

J7

pins 2 & 3 closed

»

Floppy drive interface enabled

J8

pins 1 & 2 closed

 

Floppy drive interface disabled

J8

pins 2 & 3 closed

»

VGA interrupt enabled

J10

Closed

 

VGA interrupt disabled

J10

Open

»

Battery type select internal

J30

pins 2 & 3 closed

 

Battery type select external

J30

Closed

 

CMOS memory clear

J30

pins 3 & 4 closed

»

Parallel port enabled

JA

pins 1 & 2 closed

 

Parallel port disabled

JA

pins 2 & 3 closed

»

Serial port 1 enabled

JC

pins 1 & 2 closed

 

Serial port 1 disabled

JC

pins 2 & 3 closed

»

Serial port 2 enabled

JD

pins 1 & 2 closed

 

Serial port 2 disabled

JD

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(1) 256K x 36

NONE

2MB

(1) 256K x 36

(1) 256K x 36

2MB

(1) 512K x 36

NONE

3MB

(1) 512K x 36

(1) 256K x 36

3MB

(1) 256K x 36

(1) 512K x 36

4MB

(1) 1M x 36

NONE

5MB

(1) 1M x 36

(1) 256K x 36

6MB

(1) 1M x 36

(1) 512K x 36

8MB

(1) 1M x 36

(1) 1M x 36

8MB

(1) 2M x 36

NONE

9MB

(1) 2M x 36

(1) 256K x 36

10MB

(1) 2M x 36

(1) 512K x 36

12MB

(1) 2M x 36

(1) 1M x 36

16MB

(1) 2M x 36

(1) 2M x 36

16MB

(1) 4M x 36

NONE

17MB

(1) 4M x 36

(1) 256K x 36

18MB

(1) 4M x 36

(1) 512K x 36

20MB

(1) 4M x 36

(1) 1M x 36

24MB

(1) 4M x 36

(1) 2M x 36

32MB

(1) 4M x 36

(1) 4M x 36

DRAM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

32MB

(1) 8M x 36

NONE

33MB

(1) 8M x 36

(1) 256K x 36

34MB

(1) 8M x 36

(1) 512K x 36

36MB

(1) 8M x 36

(1) 1M x 36

40MB

(1) 8M x 36

(1) 2M x 36

48MB

(1) 8M x 36

(1) 4M x 36

48MB

(1) 4M x 36

(1) 8M x 36

64MB

(1) 8M x 36

(1) 8M x 36

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

J23

J24

J25

J26

64KB

pins 1 & 2 closed

pins 1 & 2 closed

Open

pins 2 & 3 closed

128KB

pins 2 & 3 closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

256KB

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

CPU TYPE CONFIGURATION

Type

J11

J13

80486SX

Open

pins 2 & 3 closed

80487SX

pins 2 & 3 closed

pins 1 & 2, 3 & 4 closed

80486SX2

pins 1 & 2 closed or Open

pins 2 & 3 closed

80486DX

pins 1 & 2 closed

pins 1 & 2, 3 & 4 closed

80486DX2

pins 1 & 2 closed

pins 1 & 2, 3 & 4 closed

80486DX4

pins 1 & 2 closed

pins 1 & 2, 3 & 4 closed

Pentium Overdrive

pins 2 & 3 closed

pins 1 & 2, 3 & 4 closed

CPU SPEED CONFIGURATION

Speed

J17

25MHz

pins 5 & 6 closed

33MHz

pins 1 & 2 closed

40MHz

pins 1 & 2, 3 & 4 closed

50iMHz

pins 5 & 6 closed

50MHz

pins 3 & 4 closed

66iMHz

pins 1 & 2 closed

75iMHz

pins 5 & 6 closed

100iMHz

pins 1 & 2 closed

CPU VOLTAGE CONFIGURATION

Voltage

J31

J33

3.3/3.45v

pins 5 & 6, 7 & 8 closed

pins 1 & 2 closed

3.6v

pins 5 & 6, 7 & 8 closed

pins 2 & 3 closed

5v

pins 1 & 2, 3 & 4 closed

Open

VIDEO CONFIGURATION

Setting

J14

J15

On board VGA enabled

Closed

Closed

On board VGA disabled

Open

Open

IDE INTERFACE CONFIGURATION

Setting

JB

JE

Enabled

pins 1 & 2 closed

pins 1 & 2 closed

Disabled

pins 2 & 3 closed

pins 2 & 3 closed