...because we can't all be on the bleeding edge...





P55T2PIO (REV. 2.0), P55T2SPIO (REV. 2.0)

EFA CORPORATION

P55T2PIO (REV. 2.0), P55T2SPIO (REV. 2.0)

Processor

CX M1/AM K5/Pentium

Processor Speed

75/90/100/110/120/133/150/166/200MHz

Chip Set

Intel

Video Chip Set

None

Maximum Onboard Memory

512MB

Maximum Video Memory

None

Cache

256/512KB

BIOS

Award

Dimensions

280mm 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), USB connectors (2), IR connector, audio bus slot

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse interface

J2

Parallel port

J18

External battery

J3

Serial port 1

J20

IR connector

J7

Serial port 2

J21

IDE interface LED

J8

Floppy drive interface

J22

Green PC connector

J10

USB connector

J23

Reset switch

J11

USB connector

J24

Speaker

J13

IDE interface 1

J25

Turbo LED

J15

IDE interface 2

J26

Turbo switch

J16

32-bit PCI slots

PC1 - PC4

Power LED & keylock

J17

Audio bus slot

SL1

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Monitor type select color

JP12

Open

 

Monitor type select monochrome

JP12

Closed

»

CMOS memory normal operation

JP13

Open

 

CMOS memory clear

JP13

Closed

 

DRAM refresh rate select 66MHz

JP14

Open

 

DRAM refresh rate select 60MHz

JP14

Closed

 

Flash BIOS normal operation

JP17

Pins 2 & 3 closed

 

Flash BIOS recovery mode

JP17

Pins 1 & 2 closed

 

Sound interface enabled

JP18

Pins 1 & 2 closed

 

Sound interface disabled

JP18

Pins 2 & 3 closed

»

Flash BIOS voltage select 5v

JP19

Pins 2 & 3 closed

 

Flash BIOS voltage select 12v

JP19

Pins 1 & 2 closed

»

BIOS type select 1MB EEPROM

JP21

Pins 1 & 2 closed

 

BIOS type select 2MB EEPROM

JP21

Pins 2 & 3 closed

»

PS/2 mouse IRQ12 enabled

JP24

Closed

 

PS/2 mouse IRQ12 disabled

JP24

Open

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

DRAM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

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

256MB

(2) 32M x 36

None

264MB

(2) 32M x 36

(2) 1M x 36

272MB

(2) 32M x 36

(2) 2M x 36

288MB

(2) 32M x 36

(2) 4M x 36

320MB

(2) 32M x 36

(2) 8M x 36

384MB

(2) 32M x 36

(2) 16M x 36

512MB

(2) 32M x 36

(2) 32M x 36

Note: Board also accepts x 32 SIMMs.

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

256KB

(2) 32K x 32

None

(1) 16K/32K x 8

512KB

(2) 32K x 32

(2) 32K x 32

(1) 16K/32K x 8

Note: The location of banks 0 & 1 are unidentified.

CACHE TAG CONFIGURATION

Type

JP1

Aster 16K x 8

Pins 1 & 2 closed

Winbond 16K x 8

Open

32K x 8

Pins 2 & 3 closed

CACHE TYPE CONFIGURATION

Type

JP7

Write through

Closed

Write back

Open

CPU SPEED SELECTION (CYRIX)

CPU speed

Clock speed

Multiplier

JP5

JP6

JP11

JP15

JP16

100MHz

50MHz

2x

Closed

Closed

Open

1 & 2

2 & 3

110MHz

55MHz

2x

Open

Open

Open

1 & 2

2 & 3

120MHz

60MHz

2x

Open

Closed

Closed

1 & 2

2 & 3

133MHz

66MHz

2x

Closed

Open

Closed

1 & 2

2 & 3

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AMD/INTEL)

CPU speed

Clock speed

Multiplier

JP5

JP6

JP11

JP15

JP16

75MHz

50MHz

1.5x

Closed

Closed

Open

2 & 3

2 & 3

90MHz

60MHz

1.5x

Open

Closed

Closed

2 & 3

2 & 3

100MHz

66MHz

1.5x

Closed

Open

Closed

2 & 3

2 & 3

120MHz

60MHz

2x

Open

Closed

Closed

1 & 2

2 & 3

133MHz

66MHz

2x

Closed

Open

Closed

1 & 2

2 & 3

150MHz

60MHz

2.5x

Open

Closed

Closed

1 & 2

1 & 2

166MHz

66MHz

2.5x

Closed

Open

Closed

1 & 2

1 & 2

200MHz

66MHz

3x

Closed

Open

Closed

2 & 3

1 & 2

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION

Type

JP8

JP10

P54C (3.4v)

Pins 2 & 3 closed

Pins 1 & 3, 2 & 4 closed

P55C (2.5v)

Pins 1 & 2 closed

Pins 3 & 5, 4 & 6 closed

P55C (2.8v)

Pins 4 & 5 closed

Pins 3 & 5, 4 & 6 closed

CPU VOLTAGE SELECTION

Voltage

JP3

3.3v (STD)

Pins 1 & 2 closed

3.4v (VR)

Pins 2 & 3 closed

3.5v (VRE)

Pins 4 & 5 closed

MULTI I/O SELECTION

Setting

JP4

JP9

Enabled

Pins 2 & 3 closed

Pins 1 & 2 closed

Disabled

Pins 1 & 2 closed

Pins 2 & 3 closed