ASUS COMPUTER INTERNATIONAL

PCI/I-486SP3G

Processor

80486SX/80486SX2/80487SX/80486DX/ODP486SX/80486DX2/80486DX4/ Pentium Overdrive

Processor Speed

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

Chip Set

Intel

Max. Onboard DRAM

128MB

Cache

128/256/512KB

BIOS

Award

Dimensions

330mm x 218mm

I/O Options

32-bit PCI bus slots (3), floppy drive interface, green PC feature, IDE interface, parallel port, PS/2 mouse port, serial ports (2), SCSI interface

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse port

J1

Speaker

J9

Serial port 2

J2

Reset switch

J10

Serial port 1

J3

Turbo LED

J11

Parallel port

J4

Turbo switch

J12

SCSI interface

J5

Green PC connector

J13

Floppy drive interface

J6

IDE interface LED

JP14

IDE interface

J7

SCSI interface LED

JP15

Power LED & keylock

J8

32-bit PCI bus slots

PC1 - PC3

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

SCSI termination enabled

JP16

Open

 

SCSI termination disabled

JP16

pins 1 & 2 closed

»

On board SCSI controller disabled

JP17

pins 1 & 2 closed

 

On board SCSI controller enabled

JP17

Open

»

Factory configured - do not alter

JP19

Open

»

Flash BIOS voltage select 12 volt

JP21

pins 1 & 2 closed

 

Flash BIOS voltage select 5 volt

JP21

pins 2 & 3 closed

»

On board mouse disabled(IRQ12)

JP22

pins 1 & 2 closed

 

On board mouse enabled (IRQ12)

JP22

pins 2 & 3 closed

»

80486DX4 clock multiple select 2x

JP33

pins 2 & 3 closed

 

80486DX4 clock multiple select 3x

JP33

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

2MB

(2) 256K x 36

NONE

4MB

(2) 256K x 36

(2) 256K x 36

4MB

(2) 512K x 36

NONE

6MB

(2) 512K x 36

(2) 256K x 36

6MB

(2) 256K x 36

(2) 512K x 36

8MB

(2) 512K x 36

(2) 512K x 36

8MB

(2) 1M x 36

NONE

10MB

(2) 256K x 36

(2) 1M x 36

10MB

(2) 1M x 36

(2) 256K x 36

12MB

(2) 512K x 36

(2) 1M x 36

12MB

(2) 1M x 36

(2) 512K x 36

16MB

(2) 1M x 36

(2) 1M x 36

16MB

(2) 2M x 36

NONE

18MB

(2) 256K x 36

(2) 2M x 36

18MB

(2) 2M x 36

(2) 256K x 36

20MB

(2) 2M x 36

(2) 512K x 36

20MB

(2) 512K x 36

(2) 2M x 36

24MB

(2) 2M x 36

(2) 1M x 36

24MB

(2) 1M x 36

(2) 2M x 36

DRAM CONFIGURATION (CON'T)

Size

Bank 0

Bank 1

32MB

(2) 2M x 36

(2) 2M x 36

32MB

(2) 4M x 36

NONE

34MB

(2) 4M x 36

(2) 256K x 36

34MB

(2) 256K x 36

(2) 4M x 36

36MB

(2) 4M x 36

(2) 512K x 36

36MB

(2) 512K x 36

(2) 4M x 36

40MB

(2) 4M x 36

(2) 1M x 36

40MB

(2) 1M x 36

(2) 4M x 36

48MB

(2) 2M x 36

(2) 4M x 36

48MB

(2) 4M x 36

(2) 2M x 36

64MB

(2) 8M x 36

NONE

64MB

(2) 4M x 36

(2) 4M x 36

66MB

(2) 8M x 36

(2) 256K x 36

66MB

(2) 256K x 36

(2) 8M x 36

68MB

(2) 8M x 36

(2) 512K x 36

68MB

(2) 512K x 36

(2) 8M x 36

72MB

(2) 8M x 36

(2) 1M x 36

72MB

(2) 1M x 36

(2) 8M x 36

80MB

(2) 8M x 36

(2) 2M x 36

80MB

(2) 2M x 36

(2) 8M x 36

96MB

(2) 4M x 36

(2) 8M x 36

96MB

(2) 8M x 36

(2) 4M x 36

128MB

(2) 8M x 36

(2) 8M x 36

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

128KB

(4) 32K x 8

NONE

(1) 8K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

512KB

(4) 128K x 8

NONE

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP26

JP27

JP28

JP29

128KB

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

256KB

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

512KB

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

CPU TYPE CONFIGURATION

Type

JP30

JP31

JP32

Non SL CPU

pins 2 & 3 closed

pin 1 closed

pin 1 closed

SL CPU

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

Note: One jumper cap closes between pin 1 on JP31 & pin 1 on JP32.

CPU TYPE CONFIGURATION

Type

JP34

JP35

JP36

JP38

80486SX/SX2

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

Open

80487SX

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

Open

80486DX/DX2

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

Open

ODP80486SX

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

Open

P24D

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2, 4 & 5 closed

Closed

Pentium Overdrive

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2, 4 & 5 closed

Open

CPU SPEED CONFIGURATION

Speed

JP18

JP20

25MHz

pins 2 & 3 closed

pins 2 & 3 closed

33MHz

pins 1 & 2 closed

pins 2 & 3 closed

50iMHz

pins 2 & 3 closed

pins 2 & 3 closed

66iMHz

pins 1 & 2 closed

pins 2 & 3 closed

100iMHz

pins 1 & 2 closed

pins 2 & 3 closed

DMA CHANNEL CONFIGURATION

Channel

JP11

JP12

DMA 1

pins 1 & 2 closed

pins 1 & 2 closed

DMA 3

pins 2 & 3 closed

pins 2 & 3 closed

PCI INTERRUPT CONFIGURATION (IRQ 5)

PCI slot

JP1

JP6

Default

pins 2 & 3 closed

pins 2 & 3 closed

PC1

pins 1 & 2 closed

N/A

PC2

pins 3 & 4 closed

N/A

PC3

N/A

pins 1 & 2 closed

NCR SCSI

N/A

pins 3 & 4 closed

PCI INTERRUPT CONFIGURATION (IRQ 9)

PCI slot

JP2

JP7

Default

pins 2 & 3 closed

pins 2 & 3 closed

PC1

pins 1 & 2 closed

N/A

PC2

pins 3 & 4 closed

N/A

PC3

N/A

pins 1 & 2 closed

NCR SCSI

N/A

pins 3 & 4 closed

PCI INTERRUPT CONFIGURATION (IRQ 11)

PCI slot

JP3

JP8

Default

pins 2 & 3 closed

pins 2 & 3 closed

PC1

pins 1 & 2 closed

N/A

PC2

pins 3 & 4 closed

N/A

PC3

N/A

pins 1 & 2 closed

NCR SCSI

N/A

pins 3 & 4 closed

PCI INTERRUPT CONFIGURATION (IRQ 14)

PCI slot

JP4

JP9

Default

pins 2 & 3 closed

pins 2 & 3 closed

PC1

pins 1 & 2 closed

N/A

PC2

pins 3 & 4 closed

N/A

PC3

N/A

pins 1 & 2 closed

NCR SCSI

N/A

pins 3 & 4 closed

PCI INTERRUPT CONFIGURATION (IRQ 15)

PCI slot

JP5

JP10

Default

pins 2 & 3 closed

pins 2 & 3 closed

PC1

pins 1 & 2 closed

N/A

PC2

pins 3 & 4 closed

N/A

PC3

N/A

pins 1 & 2 closed

NCR SCSI

N/A

pins 3 & 4 closed

Note: The NCR SCSI is the on board SCSI controller.