...because we can't all be on the bleeding edge...





486PCI

SOYO COMPUTER CO., LTD.

486PCI

Processor

CX486M7/80486SX/80486DX/80486DX2/80486DX4/Pentium Overdrive

Processor Speed

25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)MHz

Chip Set

Unidentified

Max. Onboard DRAM

128MB

Cache

128/256/512KB

BIOS

Award

Dimensions

254mm x 220mm

I/O Options

32-bit VESA local bus slots (2), 32-bit PCI bus slots (4), green PC connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Power LED & keylock

J17

Turbo LED

J22

Speaker

J18

Green PC connector

JP19

Reset switch

J19

Green PC connector

JP42

External battery

J20

32-bit VESA local bus slots

SL1 & SL2

Turbo switch

J21

32-bit PCI bus slots

PC1 - PC4

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Ľ

Monitor type select monochrome

JP3

Open

 

Monitor type select color

JP3

Closed

Ľ

CMOS memory normal operation

JP5

pins 1 & 2 closed

 

CMOS memory clear

JP5

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

2MB

(1) 512K x 36

NONE

NONE

NONE

4MB

(1) 1M x 36

NONE

NONE

NONE

4MB

(1) 512K x 36

(1) 512K x 36

NONE

NONE

6MB

(1) 512K x 36

(1) 1M 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) 1M x 36

NONE

NONE

8MB

(1) 512K x 36

(1) 512K x 36

(1) 512K x 36

(1) 512K x 36

10MB

(1) 512K x 36

(1) 1M x 36

NONE

NONE

12MB

(1) 1M x 36

(1) 2M x 36

NONE

NONE

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

NONE

12MB

(1) 512K x 36

(1) 512K x 36

(1) 2M x 36

NONE

14MB

(1) 512K x 36

(1) 1M x 36

(1) 2M x 36

NONE

16MB

(1) 2M x 36

(1) 2M x 36

NONE

NONE

16MB

(1) 4M x 36

NONE

NONE

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

18MB

(1) 512K x 36

(1) 2M x 36

(1) 2M x 36

NONE

20MB

(1) 1M x 36

(1) 4M x 36

NONE

NONE

20MB

(1) 1M x 36

(1) 2M x 36

(1) 2M x 36

NONE

20MB

(1) 512K x 36

(1) 512K x 36

(1) 2M x 36

(1) 2M x 36

22MB

(1) 512K x 36

(1) 1M x 36

(1) 2M x 36

(1) 2M x 36

24MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

NONE

24MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

NONE

24MB

(1) 1M x 36

(1) 1M x 36

(1) 2M x 36

(1) 2M x 36

26MB

(1) 512K x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

28MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

(1) 1M x 36

28MB

(1) 1M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

32MB

(1) 8M x 36

NONE

NONE

NONE

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

32MB

(1) 2M x 36

(1) 2M x 36

(1) 4M x 36

NONE

32MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

36MB

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

NONE

40MB

(1) 1M x 36

(1) 1M x 36

(1) 8M x 36

NONE

40MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

NONE

48MB

(1) 2M x 36

(1) 2M x 36

(1) 8M x 36

NONE

DRAM CONFIGURATION (CONíT)

Size

Bank 0

Bank 1

Bank 2

Bank 3

48MB

(1) 2M x 36

(1) 2M x 36

(1) 4M x 36

(1) 4M x 36

52MB

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 16M x 36

NONE

NONE

NONE

64MB

(1) 8M x 36

(1) 8M x 36

NONE

NONE

64MB

(1) 4M x 36

(1) 4M x 36

(1) 8M x 36

NONE

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

68MB

(1) 1M x 36

(1) 8M x 36

(1) 4M x 36

(1) 4M x 36

72MB

(1) 1M x 36

(1) 1M x 36

(1) 8M x 36

(1) 8M x 36

80MB

(1) 2M x 36

(1) 2M x 36

(1) 8M x 36

(1) 8M x 36

84MB

(1) 1M x 36

(1) 8M x 36

(1) 8M x 36

(1) 4M x 36

96MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

NONE

96MB

(1) 4M x 36

(1) 4M x 36

(1) 8M x 36

(1) 8M x 36

100MB

(1) 1M x 36

(1) 8M x 36

(1) 8M x 36

(1) 8M 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

(4) 32K x 8

(4) 32K x 8

(1) 16K x 8 or (1) 32K x 8

512KB

(4) 128K x 8

NONE

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP22

JP24

JP27

JP30

128KB

Closed

Open

Open

pins 1 & 2 closed

256KB

Closed

Closed

Open

pins 2 & 3 closed

512KB

Closed

Closed

Closed

pins 1 & 2 closed

CPU TYPE CONFIGURATION

Type

JP6

JP7

JP8

JP9

JP10

JP11

JP12

80486SX

Open

2 & 3

Open

Open

Open

Open

Open

CX486M7(sync)

1 & 2

Open

Open

Open

Open

Open

Open

CX486M7(async)

1 & 2

Open

Open

Open

Open

Open

Open

80486DX

Open

2 & 3

Open

Open

Open

Open

Open

SL80486DX

Open

1 & 2

Open

Open

Open

Open

Closed

80486DX2

Open

2 & 3

Open

Open

Open

Open

Open

SL80486DX2

Open

1 & 2

Open

Open

Open

Open

Closed

80486DX4

Open

1 & 2

Open

Open

Open

Open

Closed

P24D

2 & 3

1 & 2

Open

2 & 3

Closed

Closed

Closed

P24T

2 & 3

1 & 2

Open

1 & 2

Open

Open

Closed

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CONíT)

Type

JP13

JP14

JP15

JP16

JP17

JP18

JP20

80486SX

Open

Open

Open

Open

2 & 3

2 & 3

2 & 3

CX486M7(sync)

Open

Open

Closed

1 & 2

Open

2 & 3

1 & 2, 3 & 4

CX486M7(async)

Open

Open

Closed

1 & 2

1 & 2

2 & 3

1 & 2, 3 & 4

80486DX

Open

Open

Open

Open

1 & 2

2 & 3

1 & 2, 3 & 4

SL80486DX

Closed

Closed

Open

Open

1 & 2

1 & 2

1 & 2, 3 & 4

80486DX2

Open

Open

Open

Open

1 & 2

2 & 3

1 & 2, 3 & 4

SL80486DX2

Open

Open

Open

Open

1 & 2

2 & 3

1 & 2, 3 & 4

80486DX4

Closed

Closed

Open

Open

1 & 2

1 & 2

1 & 2, 3 & 4

P24D

Closed

Closed

Open

Open

1 & 2

1 & 2

1 & 2, 3 & 4

P24T

Closed

Closed

Open

Open

1 & 2

1 & 2

1 & 2, 3 & 4

Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION

Speed

JP34

JP36

JP37

25MHz

Open

Open

Open

33MHz

Open

Closed

Closed

40MHz

Open

Closed

Open

50iMHz

Open

Open

Open

50MHz

Open

Open

Closed

66iMHz

Open

Closed

Closed

75iMHz

Open

Open

Open

80iMHz

Open

Closed

Open

100iMHz

Open

Closed

Closed

CPU VOLTAGE CONFIGURATION

Voltage

JP21

3.3v

pins 1 & 2, 4 & 5, 7 & 8 closed

5.0v

pins 2 & 3, 5 & 6, 8 & 9 closed

VESA WAIT STATE CONFIGURATION

Wait states

JP2

0 wait states

Open

1 wait state

Closed

BUS SPEED CONFIGURATION

CPU speed

JP1

<= 33MHz

Open

> 33MHz

Closed

PCI BUS CLOCK CONFIGURATION

Mode

JP31

JP32

Asynchronous

pins 2 & 3 closed

pins 2 & 3 closed

Synchronous

pins 1 & 2 closed

pins 1 & 2 closed