M TECHNOLOGY, INC.

M549

Device Type Mainboard
Processor CX 6X86/IBM 6X86/CX 6X86L/IBM 6X86L/CX 686MX/AM K5/AM K6/Pentium/Pentium MMX
Processor Speed 75/90/100/120/133/150/166/180/200/233/266MHz
Chip Set Super TX
Video Chip Set None
Maximum Onboard Memory 256MB (EDO & SDRAM supported)
Maximum Video Memory None
Cache 512KB
BIOS Award
Dimensions 230mm x 220mm
I/O Options 32-bit PCI slots (3), green PC connector, floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), IR connector, USB connector
NPU Options None


 

CONNECTIONS
Purpose

Location

 Purpose

Location
PS/2 mouse interface

CN1

 Power LED & keylock

J17
Floppy drive interface

CN3

 Speaker

J18
Serial port 1

CN4

 Reset switch

J19
IR connector

CN5

 Green PC connector

J23
Serial port 2

CN6

 IDE interface LED

J24
Parallel port

CN7

 Green PC ground pin connector

JP25
IDE interface 2

CN8

 32-bit PCI slots

PC1 – PC3
IDE interface 1

CN9

 USB connector

USB


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


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


SIMM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

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

8MB

(1) 1M x 64

16MB

(1) 2M x 64

32MB

(1) 4M x 64
Note: Board accepts SDRAM memory. Banks 0 & 2 cannot be filled at the same time.


CACHE CONFIGURATION

Size

Bank 0

TAG

512KB

(2) 64K x 32

Unidentified


CPU SPEED SELECTION (CX 6X86)

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

2 & 3

2 & 3

1 & 2

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 (IBM 6X86)

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

2 & 3

2 & 3

1 & 2

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 6X86L)

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

2 & 3

2 & 3

1 & 2

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 (IBM 6X86L)

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

2 & 3

2 & 3

1 & 2

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

60MHz

2.5x

2 & 3

2 & 3

1 & 2

Closed

Closed

200MHz

66MHz

2.5x

2 & 3

1 & 2

2 & 3

Closed

Closed

233MHz

75MHz

2.5x

1 & 2

2 & 3

1 & 2

Closed

Closed

233MHz

66MHz

3x

2 & 3

1 & 2

2 & 3

Open

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

2 & 3

2 & 3

1 & 2

Open

Open

100MHz

66MHz

1.5x

2 & 3

1 & 2

2 & 3

Open

Open

120MHz

60MHz

1.5x

2 & 3

2 & 3

1 & 2

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

233MHz

66MHz

3.5x

2 & 3

1 & 2

2 & 3

Open

Open
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

2 & 3

2 & 3

1 & 2

Open

Open

100MHz

66MHz

1.5x

2 & 3

1 & 2

2 & 3

Open

Open

100MHz

50MHz

2x

2 & 3

2 & 3

2 & 3

Closed

Open

120MHz

60MHz

2x

2 & 3

2 & 3

1 & 2

Closed

Open

133MHz

66MHz

2x

2 & 3

1 & 2

2 & 3

Closed

Open

150MHz

60MHz

2.5x

2 & 3

2 & 3

1 & 2

Closed

Closed

166MHz

66MHz

2.5x

2 & 3

1 & 2

2 & 3

Closed

Closed

180MHz

60MHz

3x

2 & 3

2 & 3

1 & 2

Open

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 MMX)

CPU speed

Clock speed

Multiplier

JP10

JP11

JP12

JP13

JP14

150MHz

60MHz

2.5x

2 & 3

2 & 3

1 & 2

Closed

Closed

166MHz

66MHz

2.5x

2 & 3

1 & 2

2 & 3

Closed

Closed

180MHz

60MHz

3x

2 & 3

2 & 3

1 & 2

Open

Closed

200MHz

66MHz

3x

2 & 3

1 & 2

2 & 3

Open

Closed

233MHz

66MHz

3.5x

2 & 3

1 & 2

2 & 3

Open

Open

266MHz

66MHz

4x

2 & 3

1 & 2

2 & 3

Closed

Open
Note: Pins designated should be in the closed position. For the 266MHz CPU, JP15 must be closed.


CPU TYPE SELECTION

Type

J100

AMD

Open

Cyrix

Closed

IBM

Closed

Intel

Open


CPU VOLTAGE SELECTION (SINGLE)

Voltage

JP30

JP31

JP32

3.3v

Open

1 & 2, 3 & 4

1 & 2, 3 & 4, 7 & 8

í 3.5v

Open

1 & 2, 3 & 4

1 & 2, 3 & 4, 5 & 6, 7 & 8
Note: Pins designated should be in the closed position.


CPU VOLTAGE SELECTION (DUAL)

V core

JP30

JP31

JP32

2.0v

1 & 2, 3 & 4

Open

Open

2.1v

1 & 2, 3 & 4

Open

7 & 8

2.2v

1 & 2, 3 & 4

Open

5 & 6

2.3v

1 & 2, 3 & 4

Open

5 & 6, 7 & 8

2.4v

1 & 2, 3 & 4

Open

3 & 4

2.5v

1 & 2, 3 & 4

Open

3 & 4, 7 & 8

2.6v

1 & 2, 3 & 4

Open

3 & 4, 5 & 6, 7 & 8

2.7v

1 & 2, 3 & 4

Open

3 & 4, 5 & 6, 7 & 8

2.8v

1 & 2, 3 & 4

Open

1 & 2

2.9v

1 & 2, 3 & 4

Open

1 & 2, & 7 & 8

3.0v

1 & 2, 3 & 4

Open

1 & 2, 5 & 6

3.1v

1 & 2, 3 & 4

Open

1 & 2, 5 & 6, 7 & 8

3.2v

1 & 2, 3 & 4

Open

1 & 2, 3 & 4

3.3v

1 & 2, 3 & 4

Open

1 & 2, 3 & 4, 7 & 8

3.4v

1 & 2, 3 & 4

Open

1 & 2, 3 & 4, 5 & 6

3.5v

1 & 2, 3 & 4

Open

1 & 2, 3 & 4, 5 & 6, 7 & 8
Note: Pins designated should be in the closed position.