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P5TX-ATX

EFA CORPORATION

P5TX-ATX

Device Type

Mainboard

Processor

CX 6X86/CX 6X86L/CX 686MX/AM K5/AM K6/Pentium/Pentium MMX

Processor Speed

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

Chip Set

Intel

Video Chip Set

None

Maximum Onboard Memory

256MB (EDO & SDRAM supported)

Maximum Video Memory

None

Cache

256/512KB

BIOS

Award

Dimensions

305mm x 220mm

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 connector, ATX power connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

ATX power connector

ATX

Power LED & keylock

J15/pins 2/4/6/8/10

Serial port 2

CN1

Turbo LED

J15/pins 11 & 12

Parallel port

CN2

Green PC connector

J15/pins 13 & 14

PS/2 mouse port

CN3

IDE interface LED

J15/pins 15 & 16

Serial port 1

CN4

Reset switch

J15/pins 17 & 18

IDE interface 2

CN5

Green PC LED

J15/pins 19 & 20

IDE interface 1

CN6

IR connector

J19

Floppy drive interface

CN7

External battery

J20

Soft off power supply

J5

32-bit PCI slots

PC1 PC4

Speaker

J15/pins1/3/5/7

USB connector

USB

Note: The location of J9 & J15 is unidentified.

USER CONFIGURABLE SETTINGS

Function

Label

Position

Factory configured - do not alter

JP3

Unidentified

Factory configured - do not alter

JP8

Unidentified

CMOS memory normal operation

JP9

Pins 1 & 2 closed

 

CMOS memory clear

JP9

Pins 2 & 3 closed

Factory configured - do not alter

JP11

Unidentified

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 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

256KB

(2) 32K x 32

512KB

(2) 64K x 32

CPU SPEED SELECTION (CX 6X86)

CPU speed

Clock speed

Multiplier

JP4

JP5

JP6

JP7

133MHz

55MHz

2x

2 & 3

1 & 2

Closed

Closed

150MHz

60MHz

2x

2 & 3

1 & 2

Closed

Open

166MHz

66MHz

2x

2 & 3

1 & 2

Open

Open

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86L)

CPU speed

Clock speed

Multiplier

JP4

JP5

JP6

JP7

166MHz

66MHz

2x

2 & 3

1 & 2

Open

Open

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86MX)

CPU speed

Clock speed

Multiplier

JP4

JP5

JP6

JP7

166MHz

60MHz

2.5x

2 & 3

2 & 3

Closed

Open

166MHz

66MHz

2x

2 & 3

1 & 2

Open

Open

200MHz

66MHz

2.5x

2 & 3

2 & 3

Open

Open

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5)

CPU speed

Clock speed

Multiplier

JP4

JP5

JP6

JP7

90MHz

60MHz

1.5x

1 & 2

1 & 2

Closed

Open

100MHz

66MHz

1.5x

1 & 2

1 & 2

Open

Open

120MHz

60MHz

1.5x

1 & 2

1 & 2

Closed

Open

133MHz

66MHz

1.5x

1 & 2

1 & 2

Open

Open

150MHz

60MHz

2.5x

2 & 3

2 & 3

Closed

Open

166MHz

66MHz

2.5x

2 & 3

2 & 3

Open

Open

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K6)

CPU speed

Clock speed

Multiplier

JP4

JP5

JP6

JP7

166MHz

66MHz

2.5x

2 & 3

2 & 3

Open

Open

200MHz

66MHz

3x

1 & 2

2 & 3

Open

Open

233MHz

66MHz

3.5x

1 & 2

1 & 2

Open

Open

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

JP4

JP5

JP6

JP7

90MHz

60MHz

1.5x

1 & 2

1 & 2

Closed

Open

100MHz

66MHz

1.5x

1 & 2

1 & 2

Open

Open

120MHz

60MHz

2x

2 & 3

1 & 2

Closed

Open

133MHz

66MHz

2x

2 & 3

1 & 2

Open

Open

150MHz

60MHz

2.5x

2 & 3

2 & 3

Closed

Open

166MHz

66MHz

2.5x

2 & 3

2 & 3

Open

Open

200MHz

66MHz

3x

1 & 2

2 & 3

Open

Open

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL MMX)

CPU speed

Clock speed

Multiplier

JP4

JP5

JP6

JP7

166MHz

66MHz

2.5x

2 & 3

2 & 3

Open

Open

200MHz

66MHz

3x

1 & 2

2 & 3

Open

Open

233MHz

66MHz

3.5x

1 & 2

1 & 2

Open

Open

Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION

Voltage

JP1

JP12

JP13

JP14

JP15

2.0v

*

1 & 2

1 & 2

1 & 2

1 & 2

2.5v

*

2 & 3

1 & 2

2 & 3

1 & 2

2.8v

3 & 5, 4 & 6

1 & 2

1 & 2

1 & 2

2 & 3

2.9v

3 & 5, 4 & 6

2 & 3

1 & 2

1 & 2

2 & 3

3.2v

3 & 5, 4 & 6

1 & 2

1 & 2

2 & 3

2 & 3

3.3v

1 & 3, 2 & 4

2 & 3

1 & 2

2 & 3

2 & 3

3.4v

*

1 & 2

2 & 3

2 & 3

2 & 3

3.52v

1 & 3, 2 & 4

2 & 3

2 & 3

2 & 3

2 & 3

Note: Pins designated should be in the closed position. * = Reserved for future CPUs.