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4GLX4

ADDTECH RESEARCH, INC.

4GLX4

Processor

CX486SX/AM486SX/80486SX/80487SX/CX486DX/AM486DX/ 80486DX/CX486DX2(M7)/AM486DX2/80486DX2/P24D/P24T

Processor Speed

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

Chip Set

Unidentified

Video Chip Set

None

Maximum Onboard Memory

128MB

Maximum Video Memory

None

Cache

256/512/1024KB

BIOS

AMI

Dimensions

254mm x 218mm

I/O Options

32-bit VESA local bus slots (3)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

JP2

Turbo LED

JP21

Power LED & keylock

JP16

Reset switch

JP26

Speaker

JP17

32-bit VESA local bus slots

SL1 - SL3

Turbo switch

JP19

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

CMOS memory normal operation

JP1

Pins 1 & 2 closed

 

CMOS memory clear

JP1

Pins 2 & 3 closed

 

Jumper information unavailable

JP3

Unidentified

 

Jumper information unavailable

JP4

Unidentified

 

Flash BIOS voltage select 12v

JP5

Pins 2 & 3 closed

 

Flash BIOS voltage select 5v

JP5

Pins 1 & 2 closed

 

Jumper information unavailable

JP18

Unidentified

 

Jumper information unavailable

JP20

Unidentified

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(4) 256K x 9

None

2MB

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

None

5MB

(4) 256K x 9

(4) 1M x 9

5MB

(4) 1M x 9

(4) 256K x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

None

17MB

(4) 256K x 9

(4) 4M x 9

17MB

(4) 4M x 9

(4) 256K x 9

20MB

(4) 1M x 9

(4) 4M x 9

20MB

(4) 4M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

64MB

(4) 16M x 9

None

65MB

(4) 256K x 9

(4) 16M x 9

65MB

(4) 16M x 9

(4) 256K x 9

68MB

(4) 1M x 9

(4) 16M x 9

68MB

(4) 16M x 9

(4) 1M x 9

80MB

(4) 4M x 9

(4) 16M x 9

80MB

(4) 16M x 9

(4) 4M x 9

128MB

(4) 16M x 9

(4) 16M x 9

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

512KB

(4) 128K x 8

None

(1) 32K x 8

1MB

(4) 128K x 8

(4) 128K x 8

(1) 128K x 8

Note: The location of banks 0 & 1 are unidentified.

CACHE JUMPER CONFIGURATION

Size

JP11

JP12

256KB

Pins 1 & 2 closed

Pins 1 & 2 closed

512KB

Pins 2 & 3 closed

Pins 2 & 3 closed

1MB

Pins 2 & 4 closed

Pins 2 & 3 closed

CPU SPEED SELECTION

Speed

JP13

JP22

JP27

JP28

JP60

JP61

JP62

25MHz

Closed

Open

2 & 4

2 & 3

Closed

1 & 2

2 & 3

33MHz

Open

Open

2 & 4

2 & 3

Closed

2 & 3

1 & 2

40MHz

Open

Closed

2 & 3

1 & 2

Open

1 & 2

2 & 3

50iMHz

Closed

Open

2 & 4

2 & 3

Closed

1 & 2

2 & 3

50MHz

Open

Closed

1 & 2

1 & 2

Open

2 & 3

1 & 2

66iMHz

Open

Open

2 & 4

2 & 3

Closed

2 & 3

1 & 2

CPU TYPE SELECTION

Type

JP8

JP9

JP10

80486SX

Pins 2 & 3 closed

Open

Open

80487SX

Pins 1 & 2, 3 & 4 closed

Pins 1 & 2 closed

Closed

80486DX

Pins 1 & 2, 3 & 4 closed

Pins 2 & 3 closed

Open

80486DX2

Pins 1 & 2, 3 & 4 closed

Pins 2 & 3 closed

Open

P24D

Pins 1 & 2, 3 & 4 closed

Pins 1 & 2 closed

Closed

P24T

Pins 1 & 2, 3 & 4 closed

Pins 1 & 2 closed

Closed

CPU TYPE SELECTION

Type

JP15

Cyrix

Pins 2 & 3 closed

AMD

Pins 1 & 2 closed

Intel

Pins 1 & 2 closed

VL BUS WAIT STATE SELECTION

Setting

JP23

0

Open

1

Closed