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P55KTX

EPOX COMPUTER CO., LTD.

P55KTX

Device Type

Mainboard

Processor

CX 6X86L/IBM 6X86L/CX 686MX/IBM 6X86MX/AM K5/

AM K6/Pentium/Pentium MMX

Processor Speed

90/100/120/133/150/166/200/233/266/300/333MHz

Chip Set

VIA

Video Chip Set

None

Maximum Onboard Memory

256MB (SDRAM supported)

Maximum Video Memory

None

Cache

512KB

BIOS

Award

Dimensions

305mm x 244mm

I/O Options

32-bit PCI slots (4), floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), IR connector, USB connector, ATX power connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

ATX power connector

ATX

CPU fan power

J6

USB connector

CN1

Power LED & keylock

J12A

Serial port 2

CN2

Speaker

J12B

Parallel port

CN3

Reset switch

J12C

PS/2 mouse port

CN4

Green PC LED

J12D

Serial port 1

CN5

Turbo LED

J12E

Floppy drive interface

CN6

IDE interface LED

J12F

IDE interface 1

CN7

Soft off power supply

J12G

IDE interface 2

CN8

32-bit PCI slots

PC1 Ė PC4

IR connector

J3

   

Note: The location of J3 is unidentified.

USER CONFIGURABLE SETTINGS

Function

Label

Position

 

Keyboard power on disabled

J1

Pins 1 & 2 closed

 

Keyboard power on enabled

J1

Pins 2 & 3 closed

DIMM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

8MB

(1) 1M x 64

None

None

16MB

(1) 1M x 64

(1) 1M x 64

None

16MB

(1) 2M x 64

None

None

24MB

(1) 1M x 64

(1) 1M x 64

(1) 1M x 64

32MB

(1) 2M x 64

(1) 2M x 64

None

32MB

(1) 4M x 64

None

None

48MB

(1) 2M x 64

(1) 2M x 64

(1) 2M x 64

64MB

(1) 4M x 64

(1) 4M x 64

None

64MB

(1) 8M x 64

None

None

96MB

(1) 4M x 64

(1) 4M x 64

(1) 4M x 64

128MB

(1) 8M x 64

(1) 8M x 64

None

128MB

(1) 16M x 64

None

None

164MB

(1) 16M x 64

(1) 1M x 64

None

144MB

(1) 16M x 64

(1) 1M x 64

(1) 1M x 64

144MB

(1) 16M x 64

(1) 2M x 64

None

160MB

(1) 16M x 64

(1) 2M x 64

(1) 2M x 64

DIMM CONFIGURATION (CONíT)

Size

Bank 0

Bank 1

Bank 2

160MB

(1) 16M x 64

(1) 4M x 64

None

192MB

(1) 16M x 64

(1) 4M x 64

(1) 4M x 64

192MB

(1) 16M x 64

(1) 8M x 64

None

192MB

(1) 8M x 64

(1) 8M x 64

(1) 8M x 64

256MB

(1) 16M x 64

(1) 16M x 64

None

Note: Board accepts SDRAM memory.

CACHE CONFIGURATION

Size

Bank 0

512KB

(1) 64K x 64

CPU SPEED SELECTION (CX 6X86L)

CPU speed

Clock speed

Multiplier

J7

J8

J9

J11

150MHz

60MHz

2.5x

1 & 2

1 & 2

2 & 3

1 & 2

166MHz

66MHz

2.5x

1 & 2

1 & 2

2 & 3

Open

200MHz

75MHz

3x

1 & 2

1 & 2

2 & 3

3 & 4

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (IBM 6X86L)

CPU speed

Clock speed

Multiplier

J7

J8

J9

J11

150MHz

60MHz

2.5x

1 & 2

1 & 2

2 & 3

1 & 2

166MHz

66MHz

2.5x

1 & 2

1 & 2

2 & 3

Open

200MHz

75MHz

3x

1 & 2

1 & 2

2 & 3

3 & 4

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86MX)

CPU speed

Clock speed

Multiplier

J7

J8

J9

J11

166MHz

66MHz

2x

1 & 2

1 & 2

2 & 3

Open

166MHz

60MHz

2.5x

1 & 2

2 & 3

2 & 3

1 & 2

200MHz

75MHz

2x

1 & 2

1 & 2

2 & 3

3 & 4

200MHz

66MHz

2.5x

1 & 2

2 & 3

2 & 3

Open

233MHz

75MHz

2.5x

1 & 2

2 & 3

2 & 3

3 & 4

233MHz

66MHz

3x

1 & 2

2 & 3

1 & 2

Open

266MHz

75MHz

3x

1 & 2

2 & 3

1 & 2

3 & 4

266MHz

66MHz

3.5x

1 & 2

1 & 2

1 & 2

Open

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (IBM 6X86MX)

CPU speed

Clock speed

Multiplier

J7

J8

J9

J11

166MHz

66MHz

2x

1 & 2

1 & 2

2 & 3

Open

166MHz

60MHz

2.5x

1 & 2

2 & 3

2 & 3

1 & 2

200MHz

75MHz

2x

1 & 2

1 & 2

2 & 3

3 & 4

200MHz

66MHz

2.5x

1 & 2

2 & 3

2 & 3

Open

233MHz

75MHz

2.5x

1 & 2

2 & 3

2 & 3

3 & 4

233MHz

66MHz

3x

1 & 2

2 & 3

1 & 2

Open

266MHz

75MHz

3x

1 & 2

2 & 3

1 & 2

3 & 4

266MHz

66MHz

3.5x

1 & 2

1 & 2

1 & 2

Open

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5)

CPU speed

Clock speed

Multiplier

J7

J8

J9

J11

90MHz

60MHz

1.5x

1 & 2

1 & 2

1 & 2

1 & 2

100MHz

66MHz

1.5x

1 & 2

1 & 2

1 & 2

Open

120MHz

60MHz

2x

1 & 2

1 & 2

2 & 3

1 & 2

133MHz

66MHz

2x

1 & 2

1 & 2

2 & 3

Open

150MHz

60MHz

2.5x

1 & 2

2 & 3

2 & 3

1 & 2

166MHz

66MHz

2.5x

1 & 2

2 & 3

2 & 3

Open

200MHz

66MHz

3x

1 & 2

2 & 3

1 & 2

Open

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K6)

CPU speed

Clock speed

Multiplier

J7

J8

J9

J11

166MHz

66MHz

2.5x

1 & 2

2 & 3

2 & 3

Open

200MHz

66MHz

3x

1 & 2

2 & 3

1 & 2

Open

233MHz

66MHz

3.5x

1 & 2

1 & 2

1 & 2

Open

266MHz

66MHz

4x

2 & 3

1 & 2

2 & 3

Open

300MHz

66MHz

4.5x

2 & 3

2 & 3

2 & 3

Open

333MHz

66MHz

5x

2 & 3

2 & 3

1 & 2

Open

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

J7

J8

J9

J11

90MHz

60MHz

1.5x

1 & 2

1 & 2

1 & 2

1 & 2

100MHz

66MHz

1.5x

1 & 2

1 & 2

1 & 2

Open

120MHz

60MHz

2x

1 & 2

1 & 2

2 & 3

1 & 2

133MHz

66MHz

2x

1 & 2

1 & 2

2 & 3

Open

150MHz

60MHz

2.5x

1 & 2

2 & 3

2 & 3

1 & 2

166MHz

66MHz

2.5x

1 & 2

2 & 3

2 & 3

Open

200MHz

66MHz

3x

1 & 2

2 & 3

1 & 2

Open

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL MMX)

CPU speed

Clock speed

Multiplier

J7

J8

J9

J11

166MHz

66MHz

2.5x

1 & 2

2 & 3

2 & 3

Open

200MHz

66MHz

3x

1 & 2

2 & 3

1 & 2

Open

233MHz

66MHz

3.5x

1 & 2

1 & 2

1 & 2

Open

266MHz

66MHz

4x

2 & 3

1 & 2

2 & 3

Open

300MHz

66MHz

4.5x

2 & 3

2 & 3

2 & 3

Open

333MHz

66MHz

5x

2 & 3

2 & 3

1 & 2

Open

Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION

Voltage

J10

2.0v

Pins 1 & 2 closed

2.8v

Pins 3 & 4 closed

2.9v

Pins 5 & 6 closed

3.2v

Pins 7 & 8 closed

3.5v

Pins 9 & 10 closed