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5EA5/A5C

SOYO COMPUTER CO., LTD.

5EA5/A5C

Processor

CX 6X86/CX 6X86L/CX 6X86MX/AM K5/AM K6/Pentium

Processor Speed

75/90/100/120/133/150/166/180/200/233/266MHz

Chip Set

Unidentified

Video Chip Set

None

Maximum Onboard Memory

256MB (EDO supported)

Maximum Video Memory

None

Cache

512KB

BIOS

Unidentified

Dimensions

254mm x 218mm

I/O Options

32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), IR connector, USB connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse port

CN1

Serial port 1

CN9

Floppy drive interface

CN2

Power LED & keylock

J17

USB connector

CN3

Speaker

J18

Serial port 2

CN4

Reset switch

J19

IR connector

CN5

Green PC connector

J23

Parallel port

CN6

IDE interface LED

J24

IDE interface 2

CN7

32-bit PCI slots

PC1 - PC3

IDE interface 1

CN8

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

CMOS memory normal operation

JP5

Pins 1 & 2 closed

 

CMOS memory clear

JP5

Pins 2 & 3 closed

PCI bus select synchronous

JP16

Pins 1 & 2 closed

 

PCI bus select asynchronous

JP16

Pins 2 & 3 closed

EMI signals disabled

JP25

Closed

 

EMI signals enabled

JP25

Open

SIMM CONFIGURATION

Size

Bank 0

Bank 1

8MB

(2) 1M x 36

None

16MB

(2) 2M x 36

None

16MB

(2) 1M x 36

(2) 1M x 36

24MB

(2) 2M x 36

(2) 1M x 36

32MB

(2) 4M x 36

None

32MB

(2) 2M x 36

(2) 2M x 36

40MB

(2) 4M x 36

(2) 1M 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

72MB

(2) 8M x 36

(2) 1M x 36

80MB

(2) 8M x 36

(2) 2M x 36

96MB

(2) 8M x 36

(2) 4M x 36

128MB

(2) 8M x 36

(2) 8M x 36

128MB

(2) 16M x 36

None

136MB

(2) 16M x 36

(2) 1M x 36

144MB

(2) 16M x 36

(2) 2M x 36

160MB

(2) 16M x 36

(2) 4M x 36

192MB

(2) 16M x 36

(2) 8M x 36

256MB

(2) 16M x 36

(2) 16M x 36

Note: Board accepts EDO memory. Banks are interchangeable.

DIMM CONFIGURATION

Size

Bank 0

8MB

(1) 1M x 64

16MB

(1) 2M x 64

32MB

(1) 4M x 64

64MB

(1) 8M x 64

CACHE CONFIGURATION

Size

Bank 0

TAG

512KB

(2) 64K x 32

(1) 16K x 8

CPU SPEED SELECTION (CX 6X86/6X 86L)

CPU speed

Clock speed

Multiplier

JP10

JP11

JP12

JP13

JP14

120MHz

50MHz

2x

2 & 3

2 & 3

2 & 3

Closed

Open

133MHz

55MHz

2x

1 & 2

2 & 3

2 & 3

Closed

Open

150MHz

60MHz

2x

1 & 2

2 & 3

2 & 3

Closed

Open

166MHz

66MHz

2x

2 & 3

1 & 2

2 & 3

Closed

Open

200MHz

75MHz

2x

1 & 2

2 & 3

1 & 2

Closed

Open

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86MX)

CPU speed

Clock speed

Multiplier

JP10

JP11

JP12

JP13

JP14

166MHz

66MHz

2.5x

2 & 3

2 & 3

1 & 2

Closed

Closed

200MHz

66MHz

2.5x

2 & 3

1 & 2

2 & 3

Closed

Closed

233MHz

66MHz

3x

2 & 3

1 & 2

2 & 3

Open

Closed

233MHz

75MHz

2.5x

1 & 2

2 & 3

1 & 2

Closed

Closed

266MHz

75MHz

3x

1 & 2

2 & 3

1 & 2

Open

Closed

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5)

CPU speed

Clock speed

Multiplier

JP10

JP11

JP12

JP13

JP14

75MHz

50MHz

1.5x

2 & 3

2 & 3

2 & 3

Open

Open

90MHz

60MHz

1.5x

1 & 2

2 & 3

2 & 3

Open

Open

100MHz

66MHz

1.5x

2 & 3

1 & 2

2 & 3

Open

Open

120MHz

60MHz

1.5x

1 & 2

2 & 3

2 & 3

Open

Open

133MHz

66MHz

1.5x

2 & 3

1 & 2

2 & 3

Open

Open

150MHz

60MHz

2x

1 & 2

2 & 3

2 & 3

Closed

Open

166MHz

66MHz

2.5x

2 & 3

1 & 2

2 & 3

Closed

Closed

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K6)

CPU speed

Clock speed

Multiplier

JP10

JP11

JP12

JP13

JP14

150MHz

60MHz

2x

1 & 2

2 & 3

2 & 3

Closed

Open

166MHz

66MHz

2.5x

2 & 3

1 & 2

2 & 3

Closed

Closed

200MHz

66MHz

3x

2 & 3

1 & 2

2 & 3

Open

Closed

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

JP10

JP11

JP12

JP13

JP14

75MHz

50MHz

1.5x

2 & 3

2 & 3

2 & 3

Open

Open

90MHz

60MHz

1.5x

1 & 2

2 & 3

2 & 3

Open

Open

100MHz

66MHz

1.5x

2 & 3

1 & 2

2 & 3

Open

Open

120MHz

60MHz

2x

1 & 2

2 & 3

2 & 3

Closed

Open

133MHz

66MHz

2x

2 & 3

1 & 2

2 & 3

Closed

Open

150MHz

60MHz

2.5x

1 & 2

2 & 3

2 & 3

Closed

Closed

166MHz

66MHz

2.5x

2 & 3

1 & 2

2 & 3

Closed

Closed

180MHz

60MHz

3x

1 & 2

2 & 3

2 & 3

Open

Closed

200MHz

66MHz

3x

2 & 3

1 & 2

2 & 3

Open

Closed

Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION (SINGLE)

Voltage

JP30

JP31

JP32

 

3.3v

Open

1 & 2, 3 & 4

1 & 2

3.52v

Open

1 & 2, 3 & 4

3 & 4

Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION (DUAL)

Voltage

JP30

JP31

JP32

2.8v

1 & 2, 3 & 4

Open

5 & 6

 

2.9v

1 & 2, 3 & 4

Open

7 & 8

Note: Pins designated should be in the closed position.