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





PR5 (REV. 1.01)

ABIT COMPUTER CORPORATION

PR5 (REV. 1.01)

Processor

CX M1/AM K5/Pentium

Processor Speed

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

Chip Set

Intel

Video Chip Set

None

Maximum Onboard Memory

128MB (EDO supported)

Maximum Video Memory

None

Cache

256/512KB

BIOS

Award

Dimensions

330mm 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), cache slot, IR connector, USB connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 1

CN1

Reset switch

J6 pins 1 & 2

Serial port 2

CN2

Green PC connector

J6 pins 6 & 7

Parallel port

CN3

Turbo LED

J6 pins 8 & 9

Floppy drive interface

CN4

Speaker

J6 pins 11 - 14

IDE interface 2

CN5

Power LED & keylock

J6 pins 16 - 20

IDE interface 1

CN6

IR connector

JP2

USB connectors

CN7

Chassis fan power

JP9

PS/2 mouse port

J4

32-bit PCI slots

PC1 - PC3

IDE interface LED

J5

Cache slot

SL1

USER CONFIGURABLE SETTINGS

Function

Label

Position

Ľ

Factory configured - do not alter

DS8

Off

Ľ

Factory configured - do not alter

J1

Unidentified

Ľ

CMOS memory normal operation

JP3

Pins 1 & 2 closed

 

CMOS memory clear

JP3

Pins 2 & 3 closed

 

Flash BIOS voltage select 12v

JP8

Pins 2 & 3 closed

 

Flash BIOS voltage select 5v

JP8

Pins 1 & 2 closed

Note: JP8 may not be present on all boards.

DIMM/DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

8MB

(2) 1M x 36

None

None

None

8MB

None

None

(1) 1M x 64

None

16MB

(2) 2M x 36

None

None

None

16MB

None

None

(1) 2M x 64

None

16MB

(2) 1M x 36

(2) 1M x 36

None

None

16MB

(2) 1M x 36

None

None

(1) 1M x 64

16MB

None

None

(1) 1M x 64

(1) 1M x 64

32MB

(2) 4M x 36

None

None

None

32MB

None

None

(1) 4M x 64

None

32MB

(2) 2M x 36

(2) 2M x 36

None

None

32MB

None

None

(1) 2M x 64

(1) 2M x 64

40MB

(2) 4M x 36

(2) 1M x 36

None

None

40MB

None

(2) 4M x 36

(1) 1M x 64

None

48MB

(2) 4M x 36

(2) 2M x 36

None

None

64MB

(2) 8M x 36

None

None

None

64MB

None

None

(1) 8M x 64

None

64MB

(2) 4M x 36

(2) 4M x 36

None

None

64MB

(2) 4M x 36

None

None

(1) 4M x 64

DIMM/DRAM CONFIGURATION (CONíT)

Size

Bank 0

Bank 1

Bank 2

Bank 3

64MB

None

(2) 4M x 36

(1) 4M x 64

None

64MB

None

None

(1) 4M x 64

(1) 4M x 64

72MB

(2) 8M x 36

(2) 1M x 36

None

None

72MB

None

(2) 8M x 36

(1) 1M x 64

None

80MB

(2) 8M x 36

(2) 2M x 36

None

None

96MB

(2) 4M x 36

(2) 8M x 36

None

None

128MB

(2) 8M x 36

(2) 8M x 36

None

None

128MB

None

None

(1) 8M x 64

(1) 8M x 64

Note: Board accepts EDO memory. Banks 0 & 1 are interchangeable. Banks 2 & 3 are interchangeable.

DIMM VOLTAGE CONFIGURATION

Voltage

JP11

Ľ

3v

Pins 2 & 3 closed

 

5v

Pins 1 & 2 closed

CACHE CONFIGURATION

Size

Bank 0

SL1

256KB (A)

(2) 32K x 32

Not installed

256KB (B)

None

256KB module installed

512KB (A)

(2) 32K x 32

256KB module installed

512KB (B)

(2) 64K x 32

Not installed

512KB (C)

None

512KB module installed

CACHE JUMPER CONFIGURATION

Size

JP1

None

Open

256KB (A)

Open

256KB (B)

Open

512KB (A)

Closed

512KB (B)

Open

512KB (C)

Closed

CPU SPEED SELECTION (CYRIX PLL52C61-01 OR PLL52C61-21 CLOCK)

CPU speed

Clock speed

Multiplier

DS/1

DS/2

DS/3 N

DS/3 T

DS/4N

120MHz

50MHz

2x

Off

On

On

N/A

On

133MHz

55MHz

2x

Off

On

On

N/A

Off

150MHz

60MHz

2x

Off

On

On

Off

On

166MHz

66MHz

2x

Off

On

Off

Off

On

200MHz

75MHz

2x

Off

On

On

N/A

Off

Note: N = normal mode. T = turbo mode.

CPU SPEED SELECTION (CYRIX PLL52C61-01 OR PLL52C61-21 CLOCK, CONíT)

CPU speed

Clock speed

Multiplier

DS/4 T

DS/5

DS/6

DS/7 N

DS/7 T

120MHz

50MHz

2x

N/A

Off

Off

On

N/A

133MHz

55MHz

2x

N/A

On

Off

On

N/A

150MHz

60MHz

2x

Off

On

Off

Off

On

166MHz

66MHz

2x

Off

On

Off

On

Off

200MHz

75MHz

2x

N/A

On

Off

Off

N/A

Note: N = normal mode. T = turbo mode.

CPU SPEED SELECTION (CYRIX PLL52C59-14T OR ICS9159-14 CLOCK)

CPU speed

Clock speed

Multiplier

DS/1

DS/2

DS/3

DS/4

120MHz

50MHz

2x

Off

On

On

On

133MHz

55MHz

2x

Off

On

Off

Off

150MHz

60MHz

2x

Off

On

Off

On

166MHz

66MHz

2x

Off

On

On

Off

200MHz

75MHz

2x

Off

On

Off

Off

CPU SPEED SELECTION (CYRIX PLL52C59-14T OR ICS9159-14 CLOCK, CONíT)

CPU speed

Clock speed

Multiplier

DS/5

DS/6

DS/7 N

DS/7 T

120MHz

50MHz

2x

Off

Off

Off

On

133MHz

55MHz

2x

On

Off

Off

N/A

150MHz

60MHz

2x

On

Off

Off

On

166MHz

66MHz

2x

On

Off

Off

On

200MHz

75MHz

2x

On

Off

On

N/A

Note: N = normal mode. T = turbo mode.

CPU SPEED SELECTION (AMD PLL52C61-01 OR PLL52C61-21 CLOCK)

CPU speed

Clock speed

Multiplier

DS/1

DS/2

DS/3 N

DS/3 T

DS/4N

75MHz

50MHz

1.5x

Off

Off

On

N/A

On

90MHz

60MHz

1.5x

Off

Off

On

Off

On

100MHz

66MHz

1.5x

Off

Off

Off

Off

On

90MHz

60MHz

1.5x

Off

Off

On

Off

On

100MHz

66MHz

1.5x

Off

Off

Off

Off

On

120MHz

60MHz

2x

Off

On

On

Off

On

133MHz

66MHz

2x

Off

On

Off

Off

On

Note: N = normal mode. T = turbo mode.

CPU SPEED SELECTION (AMD PLL52C61-01 OR PLL52C61-21 CLOCK, CONíT)

CPU speed

Clock speed

Multiplier

DS/4 T

DS/5

DS/6

DS/7 N

DS/7 T

75MHz

50MHz

1.5x

N/A

Off

Off

On

N/A

90MHz

60MHz

1.5x

Off

On

Off

Off

On

100MHz

66MHz

1.5x

Off

On

Off

On

Off

90MHz

60MHz

1.5x

Off

On

Off

Off

On

100MHz

66MHz

1.5x

Off

On

Off

On

Off

120MHz

60MHz

2x

Off

On

Off

Off

On

133MHz

66MHz

2x

Off

On

Off

On

Off

Note: N = normal mode. T = turbo mode.

CPU SPEED SELECTION (AMD PLL52C59-14T OR ICS9159-14 CLOCK)

CPU speed

Clock speed

Multiplier

DS/1

DS/2

DS/3

DS/4

75MHz

50MHz

1.5x

Off

Off

On

On

90MHz

60MHz

1.5x

Off

Off

Off

On

100MHz

66MHz

1.5x

Off

Off

On

Off

90MHz

60MHz

1.5x

Off

Off

Off

On

100MHz

66MHz

1.5x

Off

Off

On

Off

120MHz

60MHz

2x

Off

On

Off

On

133MHz

66MHz

2x

Off

On

On

Off

CPU SPEED SELECTION (AMD PLL52C59-14T OR ICS9159-14 CLOCK, CONíT)

CPU speed

Clock speed

Multiplier

DS/5

DS/6

DS/7 N

DS/7 T

75MHz

50MHz

1.5x

Off

Off

Off

N/A

90MHz

60MHz

1.5x

On

Off

Off

On

100MHz

66MHz

1.5x

On

Off

Off

On

90MHz

60MHz

1.5x

On

Off

Off

On

100MHz

66MHz

1.5x

On

Off

Off

On

120MHz

60MHz

2x

On

Off

Off

On

133MHz

66MHz

2x

On

Off

Off

On

Note: N = normal mode. T = turbo mode.

CPU SPEED SELECTION (INTEL PLL52C61-01 OR PLL52C61-21 CLOCK)

CPU speed

Clock speed

Multiplier

DS/1

DS/2

DS/3 N

DS/3 T

DS/4N

75MHz

50MHz

1.5x

Off

Off

On

N/A

On

90MHz

60MHz

1.5x

Off

Off

On

Off

On

100MHz

66MHz

1.5x

Off

Off

Off

Off

On

120MHz

60MHz

2x

Off

On

On

Off

On

133MHz

66MHz

2x

Off

On

Off

Off

On

150MHz

60MHz

2.5x

On

On

On

Off

On

166MHz

66MHz

2.5x

On

On

Off

Off

On

200MHz

66MHz

3x

On

Off

Off

Off

On

Note: N = normal mode. T = turbo mode.

CPU SPEED SELECTION (INTEL PLL52C61-01 OR PLL52C61-21 CLOCK, CONíT)

CPU speed

Clock speed

Multiplier

DS/4 T

DS/5

DS/6

DS/7 N

DS/7 T

75MHz

50MHz

1.5x

N/A

Off

Off

On

N/A

90MHz

60MHz

1.5x

Off

On

Off

Off

On

100MHz

66MHz

1.5x

Off

On

Off

On

Off

120MHz

60MHz

2x

Off

On

Off

Off

On

133MHz

66MHz

2x

Off

On

Off

On

Off

150MHz

60MHz

2.5x

Off

On

Off

Off

On

166MHz

66MHz

2.5x

Off

On

Off

On

Off

200MHz

66MHz

3x

Off

On

Off

On

Off

Note: N = normal mode. T = turbo mode.

CPU SPEED SELECTION (INTEL PLL52C59-14T OR ICS9159-14 CLOCK)

CPU speed

Clock speed

Multiplier

DS/1

DS/2

DS/3

DS/4

75MHz

50MHz

1.5x

Off

Off

On

On

90MHz

60MHz

1.5x

Off

Off

Off

On

100MHz

66MHz

1.5x

Off

Off

On

Off

120MHz

60MHz

2x

Off

On

Off

On

133MHz

66MHz

2x

Off

On

On

Off

150MHz

60MHz

2.5x

On

On

Off

On

166MHz

66MHz

2.5x

On

On

On

Off

200MHz

66MHz

3x

On

Off

On

Off

CPU SPEED SELECTION (INTEL PLL52C59-14T OR ICS9159-14 CLOCK, CONíT)

CPU speed

Clock speed

Multiplier

DS/5

DS/6

DS/7 N

DS/7 T

75MHz

50MHz

1.5x

Off

Off

Off

On

90MHz

60MHz

1.5x

On

Off

Off

On

100MHz

66MHz

1.5x

On

Off

Off

On

120MHz

60MHz

2x

On

Off

Off

On

133MHz

66MHz

2x

On

Off

Off

On

150MHz

60MHz

2.5x

On

Off

Off

On

166MHz

66MHz

2.5x

On

Off

Off

On

200MHz

66MHz

3x

On

Off

Off

On

Note: N = normal mode. T = turbo mode.

CPU VOLTAGE SELECTION (CYRIX)

Voltage

V core

VC/1

VC/2

VC/3

VC/4

VC/5

VC/6

VC/7

VC/8

 

2.7v

3.3v

Off

Off

Off

Off

On

Off

Off

On

 

2.8v

3.3v

Off

Off

Off

On

Off

Off

Off

On

 

2.93v

3.3v

Off

Off

On

Off

Off

Off

Off

On

Ľ

3.38v

3.3v

Off

On

Off

Off

Off

Off

Off

On

 

3.52v

3.3v

On

Off

Off

Off

Off

Off

Off

On

CPU VOLTAGE SELECTION (AMD)

Voltage

V core

VC/1

VC/2

VC/3

VC/4

VC/5

VC/6

VC/7

VC/8

 

2.7v

3.38v

Off

Off

Off

Off

On

Off

Off

On

 

2.8v

3.38v

Off

Off

Off

On

Off

Off

Off

On

 

2.93v

3.38v

Off

Off

On

Off

Off

Off

Off

On

Ľ

3.38v

3.3v

Off

On

Off

Off

Off

Off

Off

On

 

3.52v

3.3v

On

Off

Off

Off

Off

Off

Off

On

CPU VOLTAGE SELECTION (INTEL)

Voltage

V core

VC/1

VC/2

VC/3

VC/4

VC/5

VC/6

VC/7

VC/8

 

2.7v

3.3v

Off

Off

Off

Off

On

Off

On

Off

 

2.8v

3.3v

Off

Off

Off

On

Off

Off

On

Off

 

2.93v

3.3v

Off

Off

On

Off

Off

Off

On

Off

Ľ

3.38v

3.3v

Off

On

Off

Off

Off

Off

On

Off

 

3.52v

3.3v

On

Off

Off

Off

Off

Off

On

Off