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P55-VPX

EPOX COMPUTER CO., LTD.

P55-VPX

Device Type

Mainboard

Processor

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

AM K6/Pentium/Pentium MMX

Processor Speed

100/120/133/150/166/188/200/225/233/266/300/333MHz

Chip Set

VIA

Video Chip Set

None

Maximum Onboard Memory

256MB (EDO & SDRAM supported)

Maximum Video Memory

None

Cache

256/512KB

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, USB connector, ATX power connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

ATX power connector

ATX

IR connector

JP10

Serial port 1

CN2

Power LED & keylock

JP11A

Serial port 2

CN3

Speaker

JP11B

USB connector

CN4

Reset switch

JP11C

Parallel port

CN5

Green PC LED

JP11D

Floppy drive interface

CN6

Turbo LED

JP11E

IDE interface 2

CN7

IDE interface LED

JP11F

IDE interface 1

CN8

Soft off power supply

JP11G

PS/2 mouse interface

JP1

32-bit PCI slots

PC1 – PC4

CPU fan power

JP7

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

 

Keyboard power on disabled

JP2

Pins 1 & 2 closed

 

Keyboard power on enabled

JP2

Pins 2 & 3 closed

SIMM CONFIGURATION

Size

Bank 2

8MB

(2) 1M x 36

16MB

(2) 2M x 36

32MB

(2) 4M x 36

64MB

(2) 8M x 36

128MB

(2) 16M x 36

256MB

(2) 32M 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

DIMM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

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.

DIMM VOLTAGE CONFIGURATION

Voltage

JP5

»

3.3v

Pins 5 & 6, 7 & 8 closed

 

5v

Pins 1 & 2, 3 & 4 closed

CACHE CONFIGURATION

Note: The location of the 256KB/512KB cache is unidentified.

CPU SPEED SELECTION (CX 6X86L)

CPU speed

Clock speed

Multiplier

JP6

150MHz

60MHz

2x

Pins 2 & 15 closed

166MHz

66MHz

2x

Pins 3 & 16 closed

200MHz

75MHz

2x

Pins 4 & 17 closed

CPU SPEED SELECTION (IBM 6X86L)

CPU speed

Clock speed

Multiplier

JP6

150MHz

60MHz

2x

Pins 2 & 15 closed

166MHz

66MHz

2x

Pins 3 & 16 closed

200MHz

75MHz

2x

Pins 4 & 17 closed

CPU SPEED SELECTION (CX 6X86MX)

CPU speed

Clock speed

Multiplier

JP6

166MHz

66MHz

2x

Pins 3 & 16 closed

166MHz

60MHz

2.5x

Pins 5 & 18 closed

200MHz

75MHz

2x

Pins 4 & 17 closed

200MHz

66MHz

2.5x

Pins 6 & 19 closed

233MHz

75MHz

2.5x

Pins 7 & 20 closed

233MHz

66MHz

3x

Pins 8 & 21 closed

266MHz

75MHz

3x

Pins 9 & 22 closed

266MHz

66MHz

3.5x

Pins 10 & 23 closed

CPU SPEED SELECTION (IBM 6X86MX)

CPU speed

Clock speed

Multiplier

JP6

166MHz

66MHz

2x

Pins 3 & 16 closed

166MHz

60MHz

2.5x

Pins 5 & 18 closed

200MHz

75MHz

2x

Pins 4 & 17 closed

200MHz

66MHz

2.5x

Pins 6 & 19 closed

233MHz

75MHz

2.5x

Pins 7 & 20 closed

233MHz

66MHz

3x

Pins 8 & 21 closed

266MHz

75MHz

3x

Pins 9 & 22 closed

266MHz

66MHz

3.5x

Pins 10 & 23 closed

CPU SPEED SELECTION (AM K5)

CPU speed

Clock speed

Multiplier

JP6

100MHz

66MHz

1.5x

Pins 1 & 14 closed

120MHz

60MHz

2x

Pins 2 & 15 closed

133MHz

66MHz

2x

Pins 3 & 16 closed

150MHz

60MHz

2.5x

Pins 5 & 18 closed

166MHz

66MHz

2.5x

Pins 6 & 19 closed

188MHz

75MHz

2.5x

Pins 7 & 20 closed

200MHz

66MHz

3x

Pins 8 & 21 closed

CPU SPEED SELECTION (AM K6)

CPU speed

Clock speed

Multiplier

JP6

166MHz

66MHz

2.5x

Pins 6 & 19 closed

200MHz

66MHz

3x

Pins 8 & 21 closed

225MHz

75MHz

3x

Pins 9 & 22 closed

233MHz

66MHz

3.5x

Pins 10 & 23 closed

266MHz

66MHz

4x

Pins 11 & 24 closed

300MHz

66MHz

4.5x

Pins 12 & 25 closed

333MHz

66MHz

5x

Pins 13 & 26 closed

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

JP6

100MHz

66MHz

1.5x

Pins 1 & 14 closed

120MHz

60MHz

2x

Pins 2 & 15 closed

133MHz

66MHz

2x

Pins 3 & 16 closed

150MHz

60MHz

2.5x

Pins 5 & 18 closed

166MHz

66MHz

2.5x

Pins 6 & 19 closed

188MHz

75MHz

2.5x

Pins 7 & 20 closed

200MHz

66MHz

3x

Pins 8 & 21 closed

CPU SPEED SELECTION (INTEL MMX)

CPU speed

Clock speed

Multiplier

JP6

166MHz

66MHz

2.5x

Pins 6 & 19 closed

200MHz

66MHz

3x

Pins 8 & 21 closed

225MHz

75MHz

3x

Pins 9 & 22 closed

233MHz

66MHz

3.5x

Pins 10 & 23 closed

266MHz

66MHz

4x

Pins 11 & 24 closed

300MHz

66MHz

4.5x

Pins 12 & 25 closed

333MHz

66MHz

5x

Pins 13 & 26 closed

CPU VOLTAGE SELECTION

Voltage

JP8

2.0v

Pins 1 & 6 closed

2.2v

Pins 5 & 10 closed

2.8v

Pins 2 & 7 closed

2.9v

Pins 3 & 8 closed

3.2v

Pins 4 & 9 closed