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4GLX3

ADDTECH RESEARCH, INC.

4GLX3

Processor

CX486S/80486SX/80487SX/CX486DX/AMD486DX/80486DX/80486DX2/ 80486DX4/Pentium Overdrive

Processor Speed

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

Chip Set

Cypress

Max. Onboard DRAM

128MB

Cache

64/128/256KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

32-bit VESA local bus slots (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo LED

JP10

External battery

JP17

Speaker

JP11

Turbo switch

JP95

Power LED & keylock

JP13

32-bit VESA Local bus slots

SL1 & SL2

Reset switch

JP15

 

 

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

CPU type select Intel/AMD

JP2A

pins 1 & 2 closed

 

CPU type select Cyrix

JP2A

pins 2 & 3 closed

CPU type select PGA

JP12

Closed

 

CPU type select PQFP

JP12

Open

CMOS memory normal operation

JP16

pins 1 & 2 closed

 

CMOS memory clear

JP16

pins 2 & 3 closed

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

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

JP7

JP8

64KB

pins 2 & 3 closed

pins 2 & 4 closed

128KB

pins 1 & 2 closed

pins 2 & 3 closed

256KB

pins 1 & 2 closed

pins 1 & 2 closed

CPU TYPE CONFIGURATION

Type

JP2

JP3

JP4

80486SX (PQFP)

Open

Open

Open

80486SX (PGA)

pins 2 & 3 closed

Open

Open

80487SX

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

Closed

80486DX/DX2

pins 1 & 2, 3 & 4 closed

pins 2 & 3 closed

Open

DX4/Overdrive

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

Closed

Note: This mainboard was manufactured with either a PQFP socket or a PGA ZIF socket.

CPU SPEED CONFIGURATION

Speed

ID3

JP5

JP5A

JP33

JP36

JP37

JP38

JP72

25MHz

Open

2 & 3

4 & 5

2 & 4

Closed

1 & 2

2 & 3

Closed

33MHz

Open

2 & 3

4 & 5

2 & 4

Closed

2 & 3

1 & 2

Open

40MHz

Closed

1 & 2

3 & 5

2 & 3

Open

1 & 2

2 & 3

Open

50iMHz

Open

2 & 3

4 & 5

2 & 4

Closed

1 & 2

2 & 3

Closed

50MHz

Closed

1 & 2

N/A

1 & 2

Open

2 & 3

1 & 2

Open

66iMHz

Open

2 & 3

4 & 5

2 & 4

Closed

2 & 3

1 & 2

Open

100iMHz

Open

2 & 3

4 & 5

2 & 4

Closed

2 & 3

1 & 2

Open

Note: Pins designated should be in the closed position. JP5 corresponds to PGA ZIF socket & JP5A corresponds to PQFP socket.

VESA WAIT STATE CONFIGURATION

Wait states

ID2

0 wait states

Open

1 wait state

Closed