Processor

CX486DX2/AM486DX2/SGS486DX2/80486DX2/CX486DX4/ AM486DX4/SGS486DX4/80486DX4/ODP80486DX4/P24T/AM5X86/ CX5X86/SGS5X86

Processor Speed

25/33/40MHz

Chip Set

VIA

Maximum Onboard Memory

64MB

Cache

128/256KB

BIOS

Award

Dimensions

250mm x 220mm

I/O Options

32-bit PCI slot, floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2)

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse interface

CN1

IDE interface 1

J8

Turbo LED

J1

IDE interface 2

J9

Green PC LED

J2

Parallel port

J10

Speaker

J3

Floppy drive interface

J11

Reset switch

J4

Serial port 1

J12

Power LED & keylock

J5

Serial port 2

J13

IDE interface LED

J6

32-bit PCI slot

PC1

Turbo switch

J7

USER CONFIGURABLE SETTINGS

Function

Label

Position

On board battery disabled

JC1

Pins 2 & 3 closed

On board battery enabled

JC1

Pins 1 & 2 closed

»

CMOS memory normal operation

JC2

Pins 1 & 2 closed

CMOS memory clear

JC2

Pins 2 & 3 closed

»

Factory configured - do not alter

JP1

Open

»

Factory configured - do not alter

JP11

Pins 1 & 2 closed

»

Factory configured - do not alter

JP12

Pins 1 & 2 closed

»

Factory configured - do not alter

JP14

Pins 1 & 2 closed

»

Factory configured - do not alter

JP17

Pins 1 & 2 closed

Flash BIOS voltage select 12v

JP19

Pins 1 & 2 closed

Flash BIOS voltage select 5v

JP19

Pins 2 & 3 closed

»

Factory configured - do not alter

JP24

Open

»

Factory configured - do not alter

JP25

Pins 1 & 2 closed

SIMM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

1MB

(1) 256K x 32

None

None

2MB

(1) 256K x 32

(1) 256K x 32

None

2MB

(1) 512K x 32

None

None

3MB

(1) 256K x 32

(1) 256K x 32

(1) 256K x 32

3MB

(1) 512K x 32

None

(1) 256K x 32

4MB

(1) 1M x 32

None

None

4MB

(1) 512K x 32

None

(1) 512K x 32

5MB

(1) 1M x 32

(1) 256K x 32

None

6MB

(1) 1M x 32

(1) 256K x 32

(1) 256K x 32

6MB

(1) 512K x 32

None

(1) 1M x 32

8MB

(1) 1M x 32

(1) 1M x 32

None

8MB

(1) 2M x 32

None

None

9MB

(1) 1M x 32

(1) 1M x 32

(1) 256K x 32

9MB

(1) 2M x 32

None

(1) 256K x 32

12MB

(1) 1M x 32

(1) 1M x 32

(1) 1M x 32

12MB

(1) 2M x 32

None

(1) 1M x 32

16MB

(1) 4M x 32

None

None

16MB

(1) 2M x 32

None

(1) 2M x 32

17MB

(1) 4M x 32

(1) 256K x 32

None

18MB

(1) 4M x 32

(1) 256K x 32

(1) 256K x 32

18MB

(1) 512K x 32

None

(1) 4M x 32

20MB

(1) 4M x 32

(1) 1M x 32

None

21MB

(1) 4M x 32

(1) 1M x 32

(1) 256K x 32

24MB

(1) 4M x 32

(1) 1M x 32

(1) 1M x 32

24MB

(1) 2M x 32

None

(1) 4M x 32

32MB

(1) 4M x 32

(1) 4M x 32

None

32MB

(1) 4M x 32

None

(1) 4M x 32

32MB

(1) 8M x 32

None

None

33MB

(1) 4M x 32

(1) 4M x 32

(1) 256K x 32

33MB

(1) 8M x 32

None

(1) 256K x 32

34MB

(1) 8M x 32

None

(1) 512K x 32

36MB

(1) 4M x 32

(1) 4M x 32

(1) 1M x 32

36MB

(1) 8M x 32

None

(1) 1M x 32

40MB

(1) 8M x 32

None

(1) 2M x 32

SIMM CONFIGURATION (CON'T)

Size

Bank 0

Bank 1

Bank 2

48MB

(1) 4M x 32

(1) 4M x 32

(1) 4M x 32

48MB

(1) 8M x 32

None

(1) 4M x 32

64MB

(1) 16M x 32

None

None

64MB

(1) 8M x 32

None

(1) 8M x 32

CACHE CONFIGURATION

Size

Bank 0

TAG

128KB

(4) 32K x 8

(1) 32K x 8

256KB

(4) 64K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP6

JP7

JP8

128KB

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

256KB

Pins 1 & 2 closed

Pins 2 & 3 closed

Pins 1 & 2 closed

CPU SPEED SELECTION

Speed

JP3

JP4

JP5

25MHz

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

33MHz

Pins 1 & 2 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

40MHz

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

CPU TYPE SELECTION

Type

JRN1

JRN2

CX486DX2

Open

1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10

AM486DX2 NV8T

1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10

Open

AM486DX2 SV8B

1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10

Open

SGS486DX2

Open

1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10

80486DX2

1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10

Open

CX486DX4 (Cyrix pin out)

Open

1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10

CX486DX4 (Intel pin out)

1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10

Open

AM486DX4 SV8B

1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10

Open

AM486DX4 NV8T

1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10

Open

SGS486DX4 (Cyrix pin out)

Open

1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10

SGS486DX4 (Intel pin out)

1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10

Open

80486DX4

1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10

Open

ODP80486DX4

1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10

Open

P24T

1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10

Open

AM5X86

1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10

Open

CX5X86

1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10

Open

SGS5X86

1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10

Open

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION (CON'T)

Type

JP16

JP18

JP20

JP22

JP23

CX486DX2

Open

Open

1 & 2

1 & 2

1 & 2

AM486DX2 NV8T

Open

Closed

1 & 2

1 & 2

2 & 3

AM486DX2 SV8B

Closed

Open

1 & 2

1 & 2

2 & 3

SGS486DX2

Open

Open

1 & 2

1 & 2

1 & 2

80486DX2

Open

Open

1 & 2

1 & 2

Open

CX486DX4 (Cyrix pin out)

Open

Open

1 & 2

1 & 2

1 & 2

CX486DX4 (Intel pin out)

Open

Open

1 & 2

1 & 2

1 & 2

AM486DX4 SV8B

Open

Open

1 & 2

1 & 2

2 & 3

AM486DX4 NV8T

Open

Open

1 & 2

1 & 2

2 & 3

SGS486DX4 (Cyrix pin out)

Open

Open

1 & 2

1 & 2

1 & 2

SGS486DX4 (Intel pin out)

Open

Open

1 & 2

1 & 2

1 & 2

80486DX4

Open

Open

1 & 2

1 & 2

2 & 3

ODP80486DX4

Open

Open

1 & 2

2 & 3

2 & 3

P24T

Open

Open

1 & 2

2 & 3

2 & 3

AM5X86

Closed

Open

1 & 2

1 & 2

2 & 3

CX5X86

Open

Open

1 & 2

1 & 2

1 & 2

SGS5X86

Open

Open

1 & 2

1 & 2

1 & 2

Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION

Voltage

JP9

JP10

JP15

3.45v

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

3.6v

Pins 2 & 3 closed

Pins 3 & 4 closed

Pins 2 & 3 closed

4v

Pins 2 & 3 closed

Pins 5 & 6 closed

Pins 2 & 3 closed

5v

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

PCI SPEED SELECTION

Speed

JP13

JP21

»

< = 33MHz

Pins 1 & 2 closed

Pins 1 & 2 closed

= 40MHz

Pins 2 & 3 closed

Pins 2 & 3 closed