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M558

PC CHIPS MANUFACTURING, LTD.

M558

Device Type

Mainboard

Processor

CX 6X86/CX 6X86L/CX 6X86MX/IBM 6X86/IBM 6X86L/IBM 6X86MX/AM K5/AM K6/IDT C6/Pentium/Pentium MMX

Processor Speed

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

Chip Set

Intel VX Pro II

Video Chip Set

None

Maximum Onboard Memory

128MB (EDO supported)

Maximum Video Memory

None

Cache

256/512KB

BIOS

Unidentified

Dimensions

254mm x 218mm

I/O Options

32-bit PCI slots (4), floppy drive interface, IDE interfaces (2), parallel port, serial ports (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 1

CN1

IDE interface LED

CN7/pins 2 & 10

Serial port 2

CN2

Speaker

CN7/pins 5 - 8

Parallel port

CN3

Power LED & keylock

CN7/pins 12 - 16

Floppy drive interface

CN4

Chassis fan power

FAN

IDE interface 1

CN5

IR connector

IR2

IDE interface 2

CN6

32-bit PCI slots

PC1 PC4

Reset switch

CN7/pins 1 & 9

USB connector

USB1

USER CONFIGURABLE SETTINGS

Function

Label

Position

CMOS memory normal operation

J1

Pins 1 & 2 closed

 

CMOS memory clear

J1

Pins 2 & 3 closed

Factory configured - do not alter

JP4

Unidentified

 

Internal power good selector

JP7

Pins 1 & 2 closed

 

External power good selector

JP7

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

Note: Board accepts EDO memory.

CACHE CONFIGURATION

Size

Bank 0

Bank 1

SL1

256KB

(2) 32K x 32

None

Not installed

512KB

(2) 32K x 32

(2) 32K x 32

Not installed

Note: The location of banks 0 & 1 are unidentified.

CACHE JUMPER CONFIGURATION

Size

JP9

256KB

Pins 1 & 2 closed

512KB

Pins 2 & 3 closed

CPU SPEED SELECTION (CX 6X86)

CPU speed

Clock speed

Multiplier

JP1

JP2

JP3

JP5

JP6

120MHz

50MHz

2x

2 & 3

2 & 3

1 & 2

1 & 2

2 & 3

150MHz

60MHz

2x

2 & 3

1 & 2

1 & 2

1 & 2

2 & 3

166MHz

66MHz

2x

1 & 2

2 & 3

1 & 2

1 & 2

2 & 3

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (IBM 6X86)

CPU speed

Clock speed

Multiplier

JP1

JP2

JP3

JP5

JP6

120MHz

50MHz

2x

2 & 3

2 & 3

1 & 2

1 & 2

2 & 3

150MHz

60MHz

2x

2 & 3

1 & 2

1 & 2

1 & 2

2 & 3

166MHz

66MHz

2x

1 & 2

2 & 3

1 & 2

1 & 2

2 & 3

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86L)

CPU speed

Clock speed

Multiplier

JP1

JP2

JP3

JP5

JP6

150MHz

60MHz

2x

2 & 3

1 & 2

1 & 2

1 & 2

2 & 3

166MHz

66MHz

2x

1 & 2

2 & 3

1 & 2

1 & 2

2 & 3

200MHz

75MHz

2x

1 & 2

2 & 3

2 & 3

1 & 2

2 & 3

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (IBM 6X86L)

CPU speed

Clock speed

Multiplier

JP1

JP2

JP3

JP5

JP6

150MHz

60MHz

2x

2 & 3

1 & 2

1 & 2

1 & 2

2 & 3

166MHz

66MHz

2x

1 & 2

2 & 3

1 & 2

1 & 2

2 & 3

200MHz

75MHz

2x

1 & 2

2 & 3

2 & 3

1 & 2

2 & 3

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86MX)

CPU speed

Clock speed

Multiplier

JP1

JP2

JP3

JP5

JP6

166MHz

60MHz

2.5x

2 & 3

1 & 2

1 & 2

2 & 3

2 & 3

200MHz

66MHz

2.5x

1 & 2

2 & 3

1 & 2

2 & 3

2 & 3

233MHz

75MHz

2.5x

1 & 2

2 & 3

2 & 3

2 & 3

2 & 3

233MHz

66MHz

3x

1 & 2

2 & 3

1 & 2

2 & 3

1 & 2

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (IBM 6X86MX)

CPU speed

Clock speed

Multiplier

JP1

JP2

JP3

JP5

JP6

166MHz

60MHz

2.5x

2 & 3

1 & 2

1 & 2

2 & 3

2 & 3

200MHz

66MHz

2.5x

1 & 2

2 & 3

1 & 2

2 & 3

2 & 3

233MHz

75MHz

2.5x

1 & 2

2 & 3

2 & 3

2 & 3

2 & 3

233MHz

66MHz

3x

1 & 2

2 & 3

1 & 2

2 & 3

1 & 2

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5)

CPU speed

Clock speed

Multiplier

JP1

JP2

JP3

JP5

JP6

75MHz

50MHz

1.5x

2 & 3

2 & 3

1 & 2

1 & 2

1 & 2

90MHz

60MHz

1.5x

2 & 3

1 & 2

1 & 2

1 & 2

1 & 2

100MHz

66MHz

1.5x

1 & 2

2 & 3

1 & 2

1 & 2

1 & 2

120MHz

60MHz

2x

2 & 3

1 & 2

1 & 2

1 & 2

2 & 3

133MHz

66MHz

2x

1 & 2

2 & 3

1 & 2

1 & 2

2 & 3

150MHz

60MHz

2.5x

2 & 3

1 & 2

1 & 2

2 & 3

2 & 3

166MHz

66MHz

2.5x

1 & 2

2 & 3

1 & 2

2 & 3

2 & 3

180MHz

60MHz

3x

2 & 3

1 & 2

1 & 2

2 & 3

1 & 2

200MHz

66MHz

3x

1 & 2

2 & 3

1 & 2

2 & 3

1 & 2

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K6)

CPU speed

Clock speed

Multiplier

JP1

JP2

JP3

JP5

JP6

166MHz

66MHz

2.5x

1 & 2

2 & 3

1 & 2

2 & 3

2 & 3

200MHz

66MHz

3x

1 & 2

2 & 3

1 & 2

2 & 3

1 & 2

233MHz

66MHz

3.5x

1 & 2

2 & 3

1 & 2

1 & 2

1 & 2

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (IDT C6)

CPU speed

Clock speed

Multiplier

JP1

JP2

JP3

JP5

JP6

150MHz

50MHz

3x

2 & 3

2 & 3

1 & 2

2 & 3

1 & 2

180MHz

60MHz

3x

2 & 3

1 & 2

1 & 2

2 & 3

1 & 2

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

JP1

JP2

JP3

JP5

JP6

75MHz

50MHz

1.5x

2 & 3

2 & 3

1 & 2

1 & 2

1 & 2

90MHz

60MHz

1.5x

2 & 3

1 & 2

1 & 2

1 & 2

1 & 2

100MHz

66MHz

1.5x

1 & 2

2 & 3

1 & 2

1 & 2

1 & 2

120MHz

60MHz

2x

2 & 3

1 & 2

1 & 2

1 & 2

2 & 3

133MHz

66MHz

2x

1 & 2

2 & 3

1 & 2

1 & 2

2 & 3

150MHz

60MHz

2.5x

2 & 3

1 & 2

1 & 2

2 & 3

2 & 3

166MHz

66MHz

2.5x

1 & 2

2 & 3

1 & 2

2 & 3

2 & 3

180MHz

60MHz

3x

2 & 3

1 & 2

1 & 2

2 & 3

1 & 2

200MHz

66MHz

3x

1 & 2

2 & 3

1 & 2

2 & 3

1 & 2

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL MMX)

CPU speed

Clock speed

Multiplier

JP1

JP2

JP3

JP5

JP6

166MHz

66MHz

2.5x

1 & 2

2 & 3

1 & 2

2 & 3

2 & 3

200MHz

66MHz

3x

1 & 2

2 & 3

1 & 2

2 & 3

1 & 2

233MHz

66MHz

3.5x

1 & 2

2 & 3

1 & 2

1 & 2

1 & 2

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION

Type

JP10

AM K5

Pins 2 & 3 closed, Pins 5 & 6 closed

AM K6

Pins 1 & 2 closed, Pins 4 & 5 closed

CX 6X86

Pins 2 & 3 closed, Pins 5 & 6 closed

CX 6X86L

Pins 1 & 2 closed, Pins 4 & 5 closed

CX 6X86MX

Pins 1 & 2 closed, Pins 4 & 5 closed

IBM 6X86

Pins 2 & 3 closed, Pins 5 & 6 closed

IBM 6X86L

Pins 1 & 2 closed, Pins 4 & 5 closed

IBM 6X86MX

Pins 1 & 2 closed, Pins 4 & 5 closed

IDT C6

Pins 2 & 3 closed, Pins 5 & 6 closed

P54C

Pins 2 & 3 closed, Pins 5 & 6 closed

P55C

Pins 1 & 2 closed, Pins 4 & 5 closed

CPU VOLTAGE SELECTION

Voltage

JP11A

JP11B

JP11C

JP11D

JP11E

2.5v

Open

Open

Open

Open

Open

2.8v

Open

Open

Open

Open

Closed

2.9v

Open

Open

Open

Closed

Open

3.2v

Open

Open

Closed

Open

Open

3.3v

Open

Closed

Open

Open

Open

3.5v

Closed

Open

Open

Open

Open