WYSE TECHNOLOGY, INC.

WYSE DECISION 486GSI

Processor

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

Processor Speed

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

Chip Set

Unidentified

Max. Onboard DRAM

64MB

Cache

128/256KB

BIOS

Unidentified

Dimensions

254mm x 218mm

I/O Options

PS/2 mouse port, parallel port, serial ports (2), VGA port, VGA feature connector, floppy drive interface, IDE interface, riser slot

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Floppy drive interface

CN1

Speaker

J11

IDE interface

CN2

Power LED & keylock

J12

VGA port

CN3

Reset switch

J13

Parallel port

CN4

Chassis fan power

J15

Serial port 1

CN5

Turbo LED

JP29

Serial port 2

CN6

IDE interface LED

JP31

PS/2 mouse port

CN7

Turbo switch

JP32

External battery

J1

LED connector

JP38 pins 3 - 10

VGA feature connector

J9

Riser Card

SL1

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Battery type select internal

JP1

pins 1 & 2 closed

 

Battery type select external

JP1

Open

 

CMOS memory clear

JP1

pins 2 & 3 closed

»

VGA controller enabled

JP2

pins 1 & 2 closed

 

VGA controller disabled

JP2

pins 2 & 3 closed

»

VGA IRQ9 enabled

JP3

pins 1 & 2 closed

 

VGA IRQ9 disabled

JP3

pins 2 & 3 closed

»

Speaker type select internal

JP28

pins 2 & 3 closed

 

Speaker type select external

JP28

pins 1 & 2 closed

»

Turbo LED enabled

JP29

pins 1 & 2 closed

 

Turbo LED disabled

JP29

pins 2 & 3 closed

»

Turbo switch enabled

JP32

pins 1 & 2 closed

 

Turbo enabled disabled

JP32

pins 2 & 3 closed

»

Parallel port enabled

JP33

pins 1 & 2 closed

 

Parallel port disabled

JP33

pins 2 & 3 closed

»

IDE interface enabled

JP34

pins 1 & 2 closed

 

IDE interface disabled

JP34

pins 2 & 3 closed

»

Floppy drive interface enabled

JP35

pins 1 & 2 closed

 

Floppy drive interface disabled

JP35

pins 2 & 3 closed

»

Serial port 1 enabled

JP36

pins 1 & 2 closed

 

Serial port 1 disabled

JP36

pins 2 & 3 closed

»

Serial port 2 enabled

JP37

pins 1 & 2 closed

 

Serial port 2 disabled

JP37

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

4MB

(1) 1M x 36

NONE

NONE

NONE

5MB

(1) 1M x 36

(1) 256K x 36

NONE

NONE

6MB

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

NONE

7MB

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

9MB

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

NONE

10MB

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

NONE

13MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

(1) 4M x 36

NONE

NONE

NONE

17MB

(1) 4M x 36

(1) 256K x 36

NONE

NONE

18MB

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

NONE

19MB

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

20MB

(1) 4M x 36

(1) 1M x 36

NONE

NONE

21MB

(1) 4M x 36

(1) 1M x 36

(1) 256K x 36

NONE

22MB

(1) 4M x 36

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

24MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

NONE

DRAM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

25MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

28MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

33MB

(1) 4M x 36

(1) 4M x 36

(1) 256K x 36

NONE

34MB

(1) 4M x 36

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

36MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

NONE

37MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

(1) 256K x 36

40MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

NONE

49MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 256K x 36

52MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

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

JP6

JP7

JP8

JP9

None

Open

Open

Open

Open

128KB

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

256KB

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

CPU TYPE CONFIGURATION

Type

JP12

JP13

80486SX

pins 2 & 3 closed

Open

80487SX

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

80486DX

pins 1 & 2, 3 & 4 closed

pins 2 & 3 closed

80486DX2

pins 1 & 2, 3 & 4 closed

pins 2 & 3 closed

Pentium Overdrive

pins 1 & 2, 3 & 4 closed

pins 2 & 3 closed

CPU SPEED CONFIGURATION

Speed

JP14

JP15

JP16

25MHz

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

33MHz

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

50iMHz

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

50MHz

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

66iMHz

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

VRAM CONFIGURATION

Size

Bank 0

Bank 1

512KB

(4) 256K x 4

NONE

1MB

(4) 256K x 4

(4) 256K x 4