Device Type

Mainboard

Processor

CX486DX/CX486DX2/SGS\THOMPSON486DX/SGS\THOMPSON486DX2 UMCU5SD/AM486DX2/AM486DX4/80486WB/80486SX/80486DX/80486DX2 80486DX4/80486DX4ODP/P24T

Processor Speed

25/33/40/50(internal)/50/63(internal)/66(internal)/80(internal)/ 83(internal)/100(internal)MHz

Chip Set

VIA

Video Chip Set

None

Maximum Onboard Memory

128MB

Maximum Video Memory

None

Cache

128/256/512/1024KB

BIOS

Award

Dimensions

280mm x 220mm

I/O Options

32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse interface

CN3

Power LED & keylock

J9

Serial port 1

J1

Speaker

J10

Serial port 2

J2

Reset switch

J11

Parallel port

J3

Green PC connector

J12

IDE interface 2

J4

Turbo LED

J13

Floppy drive interface

J5

Green PC LED

J14

IDE interface 1

J6

External battery

JP3

IDE interface LED 1

J7

Chassis fan power

JP40

IDE interface LED 2

J8

32-bit PCI slots

PC1 - PC4

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Battery type select external

JP1

Pins 1 & 2 closed

Battery type select internal

JP1

Pins 2 & 3 closed

»

CMOS memory normal operation

JP2

Pins 1 & 2 closed

CMOS memory clear

JP2

Pins 2 & 3 closed

»

Flash BIOS voltage select 12v

JP4

Pins 1 & 2 closed

Flash BIOS voltage select 5v

JP4

Pins 2 & 3 closed

»

Factory configured - do not alter

JP8

Open

»

Factory configured - do not alter

JP12

Pins 1 & 2 closed

»

PS/2 mouse disabled

JP16

Pins 2 & 3 closed

PS/2 mouse enabled

JP16

Pins 1 & 2 closed

»

Factory configured - do not alter

JP17

Pins 1 & 2 closed

»

Factory configured - do not alter

JP20

Pins 1 & 2 closed

»

Factory configured - do not alter

JP25

Pins 1 & 2 closed

»

Factory configured - do not alter

JP27

Open

»

Factory configured - do not alter

JP28

Pins 1 & 2 closed

SIMM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(1) 256K x 36

None

None

None

2MB

(1) 512K x 36

None

None

None

2MB

(1) 256K x 36

(1) 256K x 36

None

None

3MB

(1) 512K x 36

(1) 256K x 36

None

None

3MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

None

4MB

(1) 1M x 36

None

None

None

4MB

(1) 512K x 36

(1) 256K x 36

(1) 256K x 36

None

SIMM CONFIGURATION (CON'T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

4MB

(1) 512K x 36

(1) 512K x 36

None

None

4MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

5MB

(1) 1M x 36

(1) 256K x 36

None

None

5MB

(1) 512K x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

6MB

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

None

6MB

(1) 1M x 36

(1) 512K x 36

None

None

6MB

(1) 512K x 36

(1) 512K x 36

(1) 512K x 36

None

8MB

(1) 2M x 36

None

None

None

8MB

(1) 1M x 36

(1) 512K x 36

(1) 512K x 36

None

8MB

(1) 1M x 36

(1) 1M x 36

None

None

8MB

(1) 512K x 36

(1) 512K x 36

(1) 512K x 36

(1) 512K x 36

9MB

(1) 2M x 36

(1) 256K x 36

None

None

10MB

(1) 2M x 36

(1) 256K x 36

(1) 256K x 36

None

10MB

(1) 2M x 36

(1) 512K x 36

None

None

10MB

(1) 1M x 36

(1) 512K x 36

(1) 512K x 36

(1) 512K x 36

11MB

(1) 2M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

12MB

(1) 2M x 36

(1) 512K x 36

(1) 512K x 36

None

12MB

(1) 2M x 36

(1) 1M x 36

None

None

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

None

16MB

(1) 4M x 36

None

None

None

16MB

(1) 2M x 36

(1) 1M x 36

(1) 1M x 36

None

16MB

(1) 2M x 36

(1) 2M x 36

None

None

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

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

18MB

(1) 4M x 36

(1) 512K x 36

None

None

19MB

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

20MB

(1) 4M x 36

(1) 512K x 36

(1) 512K x 36

None

20MB

(1) 4M x 36

(1) 1M x 36

None

None

20MB

(1) 2M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

22MB

(1) 4M x 36

(1) 512K x 36

(1) 512K x 36

(1) 512K x 36

24MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

None

24MB

(1) 4M x 36

(1) 2M x 36

None

None

24MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

None

28MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

32MB

(1) 8M x 36

None

None

None

32MB

(1) 4M x 36

(1) 2M x 36

(1) 2M x 36

None

SIMM CONFIGURATION (CON'T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

32MB

(1) 4M x 36

(1) 4M x 36

None

None

32MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

33MB

(1) 8M x 36

(1) 256K x 36

None

None

34MB

(1) 8M x 36

(1) 256K x 36

(1) 256K x 36

None

34MB

(1) 8M x 36

(1) 512K x 36

None

None

35MB

(1) 8M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

36MB

(1) 8M x 36

(1) 512K x 36

(1) 512K x 36

None

36MB

(1) 8M x 36

(1) 1M x 36

None

None

38MB

(1) 8M x 36

(1) 512K x 36

(1) 512K x 36

(1) 512K x 36

40MB

(1) 8M x 36

(1) 1M x 36

(1) 1M x 36

None

40MB

(1) 8M x 36

(1) 2M x 36

None

None

40MB

(1) 4M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

44MB

(1) 8M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

48MB

(1) 8M x 36

(1) 2M x 36

(1) 2M x 36

None

48MB

(1) 8M x 36

(1) 4M x 36

None

None

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

None

56MB

(1) 8M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

64MB

(1) 8M x 36

(1) 4M x 36

(1) 4M x 36

None

64MB

(1) 8M x 36

(1) 8M x 36

None

None

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

80MB

(1) 8M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

96MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

None

100MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

(1) 1M x 36

104MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

(1) 2M x 36

112MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

(1) 4M x 36

128MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

128KB

(4) 32K x 8

None

(1) 8K x 8

256KB (A)

(4) 64K x 8

None

(1) 32K x 8

256KB (B)

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

512KB (A)

(4) 128K x 8

None

(1) 32K x 8

512KB (B)

(4) 64K x 8

(4) 64K x 8

(1) 32K x 8

1MB

(4) 128K x 8

(4) 128K x 8

(1) 64K/128K x 8

CACHE JUMPER CONFIGURATION

Size

JP22

JP23

JP24

JP37

JP38

JP39

128KB

1 & 2

1 & 2

2 & 3

1 & 2

1 & 2

1 & 2

256KB (A)

1 & 2

2 & 3

1 & 2

1 & 2

1 & 2

2 & 3

256KB (B)

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

2 & 3

512KB (A)

2 & 3

1 & 2

1 & 2

1 & 2

2 & 3

2 & 3

512KB (B)

1 & 2

1 & 2

1 & 2

1 & 2

2 & 3

2 & 3

1MB

1 & 2

1 & 2

1 & 2

2 & 3

2 & 3

2 & 3

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION

Speed

JP18

JP19

JP21

25MHz

Pins 1 & 2 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

33MHz

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 1 & 2 closed

40MHz

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

50iMHz

Pins 1 & 2 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

50MHz

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

63iMHz

Pins 1 & 2 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

66iMHz

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 1 & 2 closed

80iMHz

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

83iMHz

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 1 & 2 closed

100iMHz

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 1 & 2 closed

CPU TYPE SELECTION (CYRIX)

Type

JP14

JP26

JP33

JP34

JP35

486DX

1 & 2

1 & 2

Open

1 & 2

1 & 2

486DX2

1 & 2

1 & 2

Open

1 & 2

1 & 2

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION (CYRIX, CON'T)

Type

JP36

JP42

JRN1

JRN2

JRN3

486DX

1 & 2

Open

Not installed

Not installed

Installed

486DX2

1 & 2

Open

Not installed

Not installed

Installed

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION (SGS/THOMPSON)

Type

JP14

JP26

JP33

JP34

JP35

486DX

1 & 2

1 & 2

Open

1 & 2

1 & 2

486DX2

1 & 2

1 & 2

Open

1 & 2

1 & 2

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION (SGS/THOMPSON, CON'T)

Type

JP36

JP42

JRN1

JRN2

JRN3

486DX

1 & 2

Open

Not installed

Not installed

Installed

486DX2

1 & 2

Open

Not installed

Not installed

Installed

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION (UMC)

Type

JP14

JP26

JP33

JP34

JP35

U5S

1 & 2

Open

Open

2 & 3

Open

U5SLV

1 & 2

Open

Open

2 & 3

Open

U5SD

1 & 2

Open

Open

1 & 2

1 & 2

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION (UMC, CON'T)

Type

JP36

JP42

JRN1

JRN2

JRN3

U5S

2 & 3

Open

Not installed

Installed

Not installed

U5SLV

2 & 3

Open

Not installed

Installed

Not installed

U5SD

1 & 2

Open

Not installed

Installed

Not installed

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION (AMD)

Type

JP14

JP26

JP33

JP34

JP35

486DX2 (NV8T)

1 & 2

2 & 3

Closed

1 & 2

1 & 2

486DX2 (SV8B)

1 & 2

2 & 3

Open

1 & 2

1 & 2

486DX4

2 & 3

2 & 3

Open

1 & 2

1 & 2

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION (AMD, CON'T)

Type

JP36

JP42

JRN1

JRN2

JRN3

486DX2 (NV8T)

1 & 2

Open

Installed

Not installed

Not installed

486DX2 (SV8B)

1 & 2

Closed

Installed

Not installed

Not installed

486DX4

1 & 2

Open

Installed

Not installed

Not installed

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION (INTEL)

Type

JP14

JP26

JP33

JP34

JP35

80486WB

2 & 3

2 & 3

Open

1 & 2

1 & 2

80486SX

1 & 2

Open

Open

2 & 3

Open

80486DX

1 & 2

Open

Open

1 & 2

1 & 2

80486DX2

1 & 2

Open

Open

1 & 2

1 & 2

80486DX4

1 & 2

2 & 3

Open

1 & 2

1 & 2

486DX4 ODP

1 & 2

2 & 3

Open

1 & 2

2 & 3

P24T

1 & 2

2 & 3

Open

1 & 2

2 & 3

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION (INTEL, CON'T)

Type

JP36

JP42

JRN1

JRN2

JRN3

80486WB

1 & 2

Open

Installed

Not installed

Not installed

80486SX

2 & 3

Open

Installed

Not installed

Not installed

80486DX

1 & 2

Open

Installed

Not installed

Not installed

80486DX2

1 & 2

Open

Installed

Not installed

Not installed

80486DX4

1 & 2

Open

Installed

Not installed

Not installed

486DX4 ODP

1 & 2

Open

Installed

Not installed

Not installed

P24T

1 & 2

Open

Installed

Not installed

Not installed

Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION

Voltage

JP31

JP32

JP41

3.45v

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 1 & 2 closed

3.6v

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 3 & 4 closed

4v

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 5 & 6 closed

5v

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

DMA CHANNEL SELECTION

Channel

JP15

None

Open

»

1

Pins 1 & 3, 2 & 4 closed

3

Pins 3 & 5, 4 & 6 closed

PCI CLOCK SPEED SELECTION

Speed

JP11

JP13

<= 33MHz

Pins 1 & 2 closed

Pins 1 & 2 closed

>33 MHz

Pins 2 & 3 closed

Pins 2 & 3 closed