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P55-BT

EPOX COMPUTER CO., LTD.

P55-BT

Processor

CX 6X86/CX 6X86L/IBM 6X86/IBM 6X86L//CX 6X86MX/AM K5/ AM K6/Pentium

Processor Speed

90/100/120/133/150/166/180/200/225/233/266MHz

Chip Set

Intel

Video Chip Set

None

Maximum Onboard Memory

256MB (EDO supported)

Maximum Video Memory

None

Cache

512KB

BIOS

Award

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 connector, VRM connector, USB connector, ATX power connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

ATX power connector

ATX

Soft off power supply

JP9

USB connector

CN1

PS/2 mouse interface

JP13

Parallel port

CN2

Power LED & keylock

JP14/pins 1 – 5

Serial port 2

CN3

Speaker

JP14/pins 7 - 10

Serial port 1

CN4

Reset switch

JP14/pins 12 & 13

IDE interface 2

CN5

Green PC connector

JP14/pins 15 & 16

IDE interface 1

CN6

Green PC LED

JP14/pins 18 & 19

Floppy drive interface

CN7

Turbo LED

JP14/pins 20 & 21

IR connector

J4

IDE interface LED

JP14/pins 23 & 24

Chassis fan power

JP1

32-bit PCI slots

PC1 – PC4

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Keyboard power on enabled

JP2

Pins 1 & 2 closed

 

Keyboard power on disabled

JP2

Pins 2 & 3 closed

»

CMOS memory normal operation

JP8

Pins 1 & 2 closed

 

CMOS memory clear

JP8

Pins 2 & 3 closed

DIMM/SIMM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

8MB

None

None

(2) 1M x 36

8MB

None

(1) 1M x 64

None

16MB

None

None

(2) 2M x 36

16MB

None

(1) 2M x 64

None

16MB

(1) 1M x 64

None

(2) 1M x 36

16MB

(1) 1M x 64

(1) 1M x 64

None

32MB

None

None

(2) 4M x 36

32MB

None

(1) 4M x 64

None

32MB

(1) 2M x 64

None

(2) 2M x 36

32MB

(1) 2M x 64

(1) 2M x 64

None

40MB

(1) 1M x 64

None

(2) 4M x 36

48MB

(1) 4M x 64

None

(2) 2M x 36

48MB

(1) 2M x 64

None

(2) 4M x 36

64MB

None

None

(2) 8M x 36

64MB

(1) 8M x 64

None

None

64MB

(1) 4M x 64

None

(2) 4M x 36

64MB

(1) 4M x 64

(1) 4M x 64

None

72MB

(1) 1M x 64

None

(2) 8M x 36

80MB

(1) 8M x 64

None

(2) 2M x 36

80MB

(1) 2M x 64

None

(2) 8M x 36

96MB

(1) 8M x 64

None

(2) 4M x 36

96MB

(1) 4M x 64

None

(2) 8M x 36

DIMM/SIMM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

Bank 2

128MB

(1) 8M x 64

None

(2) 8M x 36

128MB

(1) 8M x 64

(1) 8M x 64

None

128MB

None

None

(2) 16M x 36

144MB

(1) 1M x 64

(1) 1M x 64

(2) 16M x 36

160MB

(1) 2M x 64

(1) 2M x 64

(2) 16M x 36

192MB

(1) 4M x 64

(1) 4M x 64

(2) 16M x 36

256MB

(1) 8M x 64

(1) 8M x 64

(2) 16M x 36

Note: Board accepts EDO memory.

DIMM VOLTAGE CONFIGURATION

Voltage

JP7

»

3.3v

Pins 1 & 2, 3 & 4 closed

 

5v

Pins 5 & 6, 7 & 8 closed

CACHE CONFIGURATION

Size

Bank 0

TAG

512KB

(2) 64K x 32

Unidentified

Note: The location of the TAG is unidentified.

CPU SPEED SELECTION (CX 6X86)

CPU speed

Clock speed

Multiplier

JP4

133MHz

66MHz

2x

Pins 23 & 24 closed

150MHz

60MHz

2x

Pins 5 & 6 closed

166MHz

66MHz

2x

Pins 7 & 8 closed

200MHz

66MHz

2x

Pins 25 & 26 closed

CPU SPEED SELECTION (CX 6X86L)

CPU speed

Clock speed

Multiplier

JP4

133MHz

66MHz

2x

Pins 23 & 24 closed

150MHz

60MHz

2x

Pins 5 & 6 closed

166MHz

66MHz

2x

Pins 7 & 8 closed

200MHz

66MHz

2x

Pins 25 & 26 closed

CPU SPEED SELECTION (IBM 6X86)

CPU speed

Clock speed

Multiplier

JP4

133MHz

66MHz

2x

Pins 23 & 24 closed

150MHz

60MHz

2x

Pins 5 & 6 closed

166MHz

66MHz

2x

Pins 7 & 8 closed

200MHz

66MHz

2x

Pins 25 & 26 closed

CPU SPEED SELECTION (IBM 6X86L)

CPU speed

Clock speed

Multiplier

JP4

133MHz

66MHz

2x

Pins 23 & 24 closed

150MHz

60MHz

2x

Pins 5 & 6 closed

166MHz

66MHz

2x

Pins 7 & 8 closed

200MHz

66MHz

2x

Pins 25 & 26 closed

CPU SPEED SELECTION (CX 6X86MX)

CPU speed

Clock speed

Multiplier

JP4

166MHz

66MHz

2.5x

Pins 9 & 10 closed

200MHz

66MHz

3x

Pins 11 & 12 closed

233MHz

66MHz

4x

Pins 15 & 16 closed

266MHz

66MHz

4.5x

Pins 19 & 20 closed

CPU SPEED SELECTION (IBM 6X86MX)

CPU speed

Clock speed

Multiplier

JP4

166MHz

66MHz

2.5x

Pins 9 & 10 closed

200MHz

66MHz

3x

Pins 11 & 12 closed

233MHz

66MHz

4x

Pins 15 & 16 closed

266MHz

66MHz

4.5x

Pins 19 & 20 closed

CPU SPEED SELECTION (AM K5/K6)

CPU speed

Clock speed

Multiplier

JP4

90MHz

60MHz

1.5x

Pins 1 & 2 closed

100MHz

66MHz

1.5x

Pins 3 & 4 closed

120MHz

60MHz

2x

Pins 5 & 6 closed

133MHz

66MHz

2x

Pins 7 & 8 closed

150MHz

60MHz

2.5x

Pins 9 & 10 closed

166MHz

66MHz

2.5x

Pins 11 & 12 closed

180MHz

60MHz

3x

Pins 13 & 14 closed

200MHz

66MHz

3x

Pins 15 & 16 closed

225MHz

75MHz

3.5x

Pins 17 & 18 closed

233MHz

66MHz

4x

Pins 19 & 20 closed

266MHz

66MHz

4.5x

Pins 21 & 22 closed

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

JP4

90MHz

60MHz

1.5x

Pins 1 & 2 closed

100MHz

66MHz

1.5x

Pins 3 & 4 closed

120MHz

60MHz

2x

Pins 5 & 6 closed

133MHz

66MHz

2x

Pins 7 & 8 closed

150MHz

60MHz

2.5x

Pins 9 & 10 closed

166MHz

66MHz

2.5x

Pins 11 & 12 closed

180MHz

60MHz

3x

Pins 13 & 14 closed

200MHz

66MHz

3x

Pins 15 & 16 closed

225MHz

75MHz

3.5x

Pins 17 & 18 closed

233MHz

66MHz

4x

Pins 19 & 20 closed

266MHz

66MHz

4.5x

Pins 21 & 22 closed

CPU VOLTAGE SELECTION

Voltage

J18

»

2.8v

Pins 1 & 5 closed

 

2.9v

Pins 2 & 6 closed

 

3.2v

Pins 3 & 7 closed

 

3.5v

Pins 4 & 8 closed

FLASH BIOS SELECTION

Setting

J9

J10

»

5v

Pins 2 & 3 closed

Pins 2 & 3 closed

 

12v

Pins 1 & 2 closed

Pins 1 & 2 closed