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TXP4 (REV. 1.01)

ASUS COMPUTER INTERNATIONAL

TXP4 (REV. 1.01)

Processor

CX 6X86/CX 6X86/CX 686MX/IBM 6X86/IBM 6X86MX/AM K5/ AM K6/Pentium

Processor Speed

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

Chip Set

Intel

Video Chip Set

None

Maximum Onboard Memory

256MB

Maximum Video Memory

None

Cache

512KB

BIOS

Unidentified

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 connectors (2), USB connector, ATX power connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

ATX power connector

ATX

CPU fan power

C5

Power LED & keylock

C1/pins 1 - 5

Power fan

C6

Speaker

C1/pins 7 - 10

Serial port 2

CN1

Message LED

C1/pins 12 & 13

Serial port 1

CN2

Green PC connector

C1/pins 14 & 15

Parallel port

CN3

Soft off power supply

C1/pins 16 & 17

Floppy drive interface

CN4

Reset switch

C1/pins 19 & 20

IDE interface 1

CN5

IDE interface LED

C2

IDE interface 2

CN6

Chassis fan power

C3

USB, PS/2 mouse, IR connector

CN7

IR connector

C4

32-bit PCI slots

PC1 PC4

USER CONFIGURABLE SETTINGS

Function

Label

Position

Flash BIOS boot block write protect disabled

BBL

Pins 1 & 2 closed

 

Flash BIOS boot block write protect enabled

BBL

Pins 2 & 3 closed

Factory configured do not alter

BF2

Unidentified

CMOS memory normal operation

RTC

Pins 1 & 2 closed

 

CMOS memory clear

RTC

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

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 0

Bank 1

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

CACHE CONFIGURATION

Size

Bank 0

512KB

(2) 64K x 32

CPU SPEED SELECTION (CX 6X86)

CPU speed

Clock speed

Multiplier

BF0

BF1

FS0

FS1

FS2

166MHz

66MHz

2x

2 & 3

1 & 2

2 & 3

1 & 2

2 & 3

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (IBM 6X86)

CPU speed

Clock speed

Multiplier

BF0

BF1

FS0

FS1

FS2

166MHz

66MHz

2x

2 & 3

1 & 2

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

BF0

BF1

FS0

FS1

FS2

166MHz

60MHz

2.5x

2 & 3

2 & 3

1 & 2

2 & 3

2 & 3

200MHz

66MHz

2.5x

2 & 3

2 & 3

2 & 3

1 & 2

2 & 3

233MHz

66MHz

3x

1 & 2

2 & 3

2 & 3

1 & 2

2 & 3

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (IBM 6X86MX)

CPU speed

Clock speed

Multiplier

BF0

BF1

FS0

FS1

FS2

166MHz

60MHz

2.5x

2 & 3

2 & 3

1 & 2

2 & 3

2 & 3

200MHz

66MHz

2.5x

2 & 3

2 & 3

2 & 3

1 & 2

2 & 3

233MHz

66MHz

3x

1 & 2

2 & 3

2 & 3

1 & 2

2 & 3

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5)

CPU speed

Clock speed

Multiplier

BF0

BF1

FS0

FS1

FS2

75MHz

50MHz

1.5x

1 & 2

1 & 2

2 & 3

2 & 3

2 & 3

90MHz

60MHz

1.5x

1 & 2

1 & 2

1 & 2

2 & 3

2 & 3

100MHz

66MHz

1.5x

1 & 2

1 & 2

2 & 3

1 & 2

2 & 3

120MHz

60MHz

1.5x

1 & 2

1 & 2

1 & 2

2 & 3

2 & 3

133MHz

66MHz

1.5x

1 & 2

1 & 2

2 & 3

1 & 2

2 & 3

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K6)

CPU speed

Clock speed

Multiplier

BF0

BF1

FS0

FS1

FS2

166MHz

66MHz

2.5x

2 & 3

2 & 3

2 & 3

1 & 2

2 & 3

200MHz

66MHz

3x

1 & 2

2 & 3

2 & 3

1 & 2

2 & 3

233MHz

66MHz

3.5x

1 & 2

1 & 2

2 & 3

1 & 2

2 & 3

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

BF0

BF1

FS0

FS1

FS2

75MHz

50MHz

1.5x

1 & 2

1 & 2

2 & 3

2 & 3

2 & 3

90MHz

60MHz

1.5x

1 & 2

1 & 2

1 & 2

2 & 3

2 & 3

100MHz

66MHz

1.5x

1 & 2

1 & 2

2 & 3

1 & 2

2 & 3

120MHz

60MHz

2x

2 & 3

1 & 2

1 & 2

2 & 3

2 & 3

133MHz

66MHz

2x

2 & 3

1 & 2

2 & 3

1 & 2

2 & 3

150MHz

60MHz

2.5x

2 & 3

2 & 3

1 & 2

2 & 3

2 & 3

166MHz

66MHz

2.5x

2 & 3

2 & 3

2 & 3

1 & 2

2 & 3

200MHz

66MHz

3x

1 & 2

2 & 3

2 & 3

1 & 2

2 & 3

233MHz

66MHz

3.5x

1 & 2

1 & 2

2 & 3

1 & 2

2 & 3

Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION (SINGLE)

Voltage

VID0

VID1

VID2

3.4v

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

3.5v

Pins 1 & 2 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

CPU VOLTAGE SELECTION (DUAL)

Voltage

VID0

VID1

VID2

2.0v

Open

Pins 2 & 3 closed

Open

2.8v

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

2.9v

Pins 1 & 2 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

3.2v

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 1 & 2 closed