HwMuseum | Index

EFA CORPORATION

P5TX-AT

Processor

CX M1/AM K5/AM K6/Pentium

Processor Speed

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

Chip Set

Intel

Video Chip Set

None

Maximum Onboard Memory

256MB (EDO supported)

Maximum Video Memory

None

Cache

256/512KB

BIOS

Award

Dimensions

250mm x 220mm

I/O Options

32-bit PCI slots (4), 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 2

CN1

Speaker

J18/pins 1, 3, 5, 7

Serial port 1

CN2

Power LED & keylock

J18/pins 2, 4, 6, 8, 10

Parallel port

CN3

Turbo LED

J18/pins 11 & 12

Floppy drive interface

CN4

Green PC connector

J18/pins 13 & 14

IDE interface 2

CN5

IDE interface LED

J18/pins 15 & 16

IDE interface 1

CN6

Reset switch

J18/pins 17 & 18

USB connector

J2

Green PC LED

J18/pins 19 & 20

PS/2 mouse port

J3

32-bit PCI slots

PC1 – PC4

IR connector

J9

Cache slot

SL1

External battery

J10

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

CMOS memory normal operation

JP15

Pins 1 & 2 closed

 

CMOS memory clear

JP15

Pins 2 & 3 closed

DRAM 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

DRAM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

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. Board also accepts x 32 SIMMs. Memory installed in Banks 1 & 2 is interchangeable.

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) 8M x 64

(1) 8M x 64

CACHE CONFIGURATION

Size

Bank 0

SL1

256KB

(2) 32K x 32

Not installed

512KB

(2) 32K x 32

256KB module installed

CACHE JUMPER CONFIGURATION

Size

JP14

256KB

Pins 1 & 2 closed

512KB

Pins 2 & 3 closed

CPU SPEED SELECTION (CX M1)

CPU speed

Clock speed

Multiplier

JP2

JP3

JP4

JP9

JP10

120MHz

50MHz

2x

1 & 2

2 & 3

1 & 2

2 & 3

1 & 2

133MHz

60MHz

2x

2 & 3

2 & 3

1 & 2

2 & 3

1 & 2

150MHz

66MHz

2x

1 & 2

2 & 3

2 & 3

2 & 3

1 & 2

166MHz

60MHz

2x

2 & 3

2 & 3

2 & 3

2 & 3

1 & 2

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5)

CPU speed

Clock speed

Multiplier

JP2

JP3

JP4

JP9

JP10

75MHz

50MHz

1.5x

1 & 2

2 & 3

1 & 2

1 & 2

1 & 2

90MHz

60MHz

1.5x

1 & 2

2 & 3

2 & 3

1 & 2

1 & 2

100MHz

66MHz

1.5x

2 & 3

2 & 3

2 & 3

1 & 2

1 & 2

120MHz

60MHz

1.5x

1 & 2

2 & 3

2 & 3

1 & 2

1 & 2

133MHz

66MHz

1.5x

2 & 3

2 & 3

2 & 3

1 & 2

1 & 2

150MHz

60MHz

1.75x

1 & 2

2 & 3

2 & 3

2 & 3

2 & 3

166MHz

66MHz

1.75x

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

200MHz

66MHz

2x

2 & 3

2 & 3

2 & 3

1 & 2

2 & 3

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

JP2

JP3

JP4

JP9

JP10

75MHz

50MHz

1.5x

1 & 2

2 & 3

1 & 2

1 & 2

1 & 2

90MHz

60MHz

1.5x

1 & 2

2 & 3

2 & 3

1 & 2

1 & 2

100MHz

66MHz

1.5x

2 & 3

2 & 3

2 & 3

1 & 2

1 & 2

120MHz

60MHz

2x

1 & 2

2 & 3

2 & 3

2 & 3

1 & 2

133MHz

66MHz

2x

2 & 3

2 & 3

2 & 3

2 & 3

1 & 2

150MHz

60MHz

2.5x

1 & 2

2 & 3

2 & 3

2 & 3

2 & 3

166MHz

66MHz

2.5x

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

200MHz

66MHz

3x

2 & 3

2 & 3

2 & 3

1 & 2

2 & 3

Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION

Voltage

JP6

JP7

2.5v

Pins 1 & 2 closed

Pins 1 & 3, 2 & 4 closed

2.8v

Pins 3 & 4 closed

Pins 1 & 3, 2 & 4 closed

3.3v

Pins 2 & 4 closed

Pins 3 & 5, 4 & 6 closed

3.52v

Pins 5 & 6 closed

Pins 3 & 5, 4 & 6 closed