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MB5689A

ANTEC, INC.

MB5689A

Device Type

Mainboard

Processor

CX 6X86/IBM 6X86/CX 6X86L/IBM 6X86L/CX 686MX/IBM 6X86MX/

IDT C6/AM K5/AM K6/Pentium/Pentium MMX

Processor Speed

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

Chip Set

Intel 430TX

Video Chip Set

None

Maximum Onboard Memory

256MB (EDO & SDRAM supported)

Maximum Video Memory

None

Cache

512KB

BIOS

Award

Dimensions

254mm x 218mm

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), IR connector, USB connectors (2), ATX power connector, wake on LAN connector

CONNECTIONS

Purpose

Location

Purpose

Location

ATX power connector

ATX

IDE interface LED

J107/pins 3 & 4

Floppy drive interface

CN1

Green PC LED

J107/pins 5 & 6

Serial port 1

CN2

Green PC connector

J107/pins 7 & 8

Serial port 2

CN3

Soft off power supply

J107/pins 9 & 10

Parallel port

CN4

Power LED & keylock

J107/pins 11 – 15

IDE interface 1

J6

Speaker

J107/pins 17 - 20

IDE interface 2

J7

Wake on LAN connector

J109

USB connector 1

J10

IR connector

JP3

USB connector 2

J11

Chassis fan power

JP5

PS/2 mouse interface

J99

EISCA cooling connector

JP6

Reset switch

J107/pins 1 & 2

32-bit PCI slots

PC1 – PC4

USER CONFIGURABLE SETTINGS

Function

Label

Position

 

Flash BIOS voltage select 12v

JP19

Pins 1 & 2 closed

 

Flash BIOS voltage select 5v

JP19

Pins 2 & 3 closed

»

CMOS memory normal operation

JP40

Pins 1 & 2 closed

 

CMOS memory clear

JP40

Pins 2 & 3 closed

 

Any hard drive installed

JP41

Pins 2 & 3 closed

 

Seagate 5v hard drive installed

JP41

Pins 1 & 2 closed

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

SIMM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

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.

DIMM CONFIGURATION

Size

Bank 2

Bank 3

8MB

(1) 1M x 64

None

16MB

(1) 2M x 64

None

16MB

(1) 1M x 64

(1) 1M x 64

24MB

(1) 2M x 64

(1) 1M x 64

32MB

(1) 4M x 64

None

32MB

(1) 2M x 64

(1) 2M x 64

40MB

(1) 4M x 64

(1) 1M x 64

48MB

(1) 4M x 64

(1) 2M x 64

64MB

(1) 8M x 64

None

64MB

(1) 4M x 64

(1) 4M x 64

72MB

(1) 8M x 64

(1) 1M x 64

80MB

(1) 8M x 64

(1) 2M x 64

96MB

(1) 8M x 64

(1) 4M x 64

128MB

(1) 16M x 64

None

128MB

(1) 8M x 64

(1) 8M x 64

136MB

(1) 16M x 64

(1) 1M x 64

144MB

(1) 16M x 64

(1) 2M x 64

160MB

(1) 16M x 64

(1) 4M x 64

192MB

(1) 16M x 64

(1) 8M x 64

256MB

(1) 16M x 64

(1) 16M x 64

Note: Board accepts SDRAM memory.

CACHE CONFIGURATION

Size

Bank 0

512KB

(1) 64K x 64

CPU SPEED SELECTION (CX 6X86)

CPU speed

Clock speed

Multiplier

J101

J108

120MHz

50MHz

2x

1 & 4, 2 & 5, 3 & 6

1 & 4

150MHz

60MHz

2x

1 & 4

1 & 4

166MHz

66MHz

2x

Open

1 & 4

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (IBM 6X86)

CPU speed

Clock speed

Multiplier

J101

J108

120MHz

50MHz

2x

1 & 4, 2 & 5, 3 & 6

1 & 4

150MHz

60MHz

2x

1 & 4

1 & 4

166MHz

66MHz

2x

Open

1 & 4

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86L)

CPU speed

Clock speed

Multiplier

J101

J108

166MHz

66MHz

2x

Open

1 & 4

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (IBM 6X86L)

CPU speed

Clock speed

Multiplier

J101

J108

166MHz

66MHz

2x

Open

1 & 4

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86MX)

CPU speed

Clock speed

Multiplier

J101

J108

166MHz

60MHz

2.5x

1 & 4

1 & 4, 2 & 5

200MHz

66MHz

2.5x

Open

1 & 4, 2 & 5

233MHz

66MHz

3x

Open

2 & 5

266MHz

66MHz

3.5x

Open

Open

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (IBM 6X86MX)

CPU speed

Clock speed

Multiplier

J101

J108

200MHz

66MHz

2.5x

Open

1 & 4, 2 & 5

233MHz

66MHz

3x

Open

2 & 5

266MHz

66MHz

3.5x

Open

Open

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (IDT C6)

CPU speed

Clock speed

Multiplier

J101

J108

150MHz

60MHz

2.5x

1 & 4

1 & 4, 2 & 5

180MHz

66MHz

3x

Open

2 & 5

200MHz

66MHz

3x

Open

2 & 5

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5)

CPU speed

Clock speed

Multiplier

J101

J108

75MHz

50MHz

1.5x

1 & 4, 2 & 5, 3 & 6

Open

90MHz

60MHz

1.5x

1 & 4

Open

100MHz

66MHz

1.5x

Open

Open

120MHz

60MHz

1.5x

1 & 4

Open

133MHz

66MHz

1.5x

Open

Open

166MHz

66MHz

2.5x

Open

1 & 4, 2 & 5

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K6)

CPU speed

Clock speed

Multiplier

J101

J108

166MHz

66MHz

2.5x

Open

1 & 4, 2 & 5

200MHz

66MHz

3x

Open

2 & 5

233MHz

66MHz

3.5x

Open

Open

266MHz

66MHz

4x

Open

1 & 4, 3 & 6

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

J101

J108

75MHz

50MHz

1.5x

1 & 4, 2 & 5, 3 & 6

Open

90MHz

60MHz

1.5x

1 & 4

Open

100MHz

66MHz

1.5x

Open

Open

120MHz

60MHz

2x

1 & 4

1 & 4

133MHz

66MHz

2x

Open

1 & 4

150MHz

60MHz

2.5x

1 & 4

1 & 4, 2 & 5

166MHz

66MHz

2.5x

Open

1 & 4, 2 & 5

200MHz

66MHz

3x

Open

2 & 5

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL MMX)

CPU speed

Clock speed

Multiplier

J101

J108

166MHz

66MHz

2.5x

Open

1 & 4, 2 & 5

200MHz

66MHz

3x

Open

2 & 5

233MHz

66MHz

3.5x

Open

Open

Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION (SINGLE)

Voltage

J104

Auto

Pins 2 & 3, 5 & 6, 8 & 9, 11 & 12, 14 & 15, 17 & 18 closed

3.1v

Pins 7 & 8, 13 & 14, 16 & 17 closed

3.33v

Pins 7 & 8, 10 & 11, 16 & 17 closed

3.4v

Pins 7 & 8, 10 & 11, 13 & 14 closed

3.52v

Pins 7 & 8, 10 & 11, 13 & 14, 16 & 17 closed

CPU VOLTAGE SELECTION (DUAL)

Voltage

V core

J104

3.3v

2.0v

Open

3.3v

2.1v

Pins 16 & 17 closed

3.3v

2.2v

Pins 13 & 14 closed

3.3v

2.3v

Pins 13 & 14, 16 & 17 closed

3.3v

2.4v

Pins 10 & 11 closed

3.3v

2.5v

Pins 10 & 11, 16 & 17 closed

3.3v

2.6v

Pins 10 & 11, 13 & 14 closed

3.3v

2.7v

Pins 10 & 11, 13 & 14, 16 & 17 closed

3.3v

2.8v

Pins 7 & 8 closed

3.3v

2.9v

Pins 7 & 8, 16 & 17 closed

3.3v

3.0v

Pins 7 & 8, 13 & 14 closed

3.3v

3.2v

Pins 7 & 8, 10 & 11 closed