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G486U/G486USX

JOINDATA SYSTEMS, INC.

G486U/G486USX

 

 

Processor

80486SX/80487SX/80486DX

Processor Speed

20/25/33/50MHz

Chip Set

UMC

Max. Onboard DRAM

64MB

Cache

64/128/256KB

BIOS

AMI/MR

Dimensions

215mm x 330mm

I/O Options

None

NPU Options

4167

 

 

CONNECTIONS

Purpose

Location

Purpose

Location

Reset switch

J9

Speaker

J12

Turbo switch

J11

Power LED & keylock

J13

Turbo LED

J10

External battery

J14

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Monitor type select color

JP15

Closed

 

Monitor type select monochrome

JP15

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(4) 256K x 9

NONE

NONE

NONE

2MB

(4) 256K x 9

(4) 256K x 9

NONE

NONE

3MB

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

NONE

4MB

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

NONE

NONE

5MB

(4) 256K x 9

(4) 1 M x 9

NONE

NONE

6MB

(4) 256K x 9

(4) 256K x 9

(4) 1 M x 9

NONE

8MB

(4) 1M x 9

(4) 1M x 9

NONE

NONE

9MB

(4) 256K x 9

(4) 1M x 9

(4) 1M x 9

NONE

10MB

(4) 256K x 9

(4) 256K x 9

(4) 1M x 9

(4) 1M x 9

12MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

NONE

16MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

NONE

NONE

20MB

(4) 1M x 9

(4) 4M x 9

NONE

NONE

24MB

(4) 1M x 9

(4) 1M x 9

(4) 4M x 9

NONE

32MB

(4) 4M x 9

(4) 4M x 9

NONE

NONE

36MB

(4) 1M x 9

(4) 4M x 9

(4) 4M x 9

NONE

40MB

(4) 1M x 9

(4) 1M x 9

(4) 4M x 9

(4) 4M x 9

48MB

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

NONE

64MB

(4) 4M x 9

(4) 4M x 9

(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

(3) 16K x 4

128KB

(4) 32K x 8

NONE

(3) 16K x 4

256KB

(4) 32K x 8

(4) 32K x 8

(3) 16K x 4

CACHE JUMPER CONFIGURATION

Size

W14

W15

W16

W17

W18

64KB

1 & 2

Open

1 & 2

1 & 2

2 & 3

128KB

2 & 3

1 & 2

1 & 2

2 & 3

2 & 3

256KB

1 & 2

2 & 3

2 & 3

2 & 3

2 & 3

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION

Type

W5

W10

W11

W12

W13

80486SX

Closed

Open

Open

Open

pins 1 & 2 closed

80487SX

Open

Closed

pins 2 & 3 closed

Closed

pins 2 & 3 closed

80486DX

Open

Closed

pins 1 & 2 closed

Closed

pins 2 & 3 closed