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P55-ET Motherboard Settings and Configuration






UNIDENTIFIED

P55-ET

Processor

Pentium

Processor Speed

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

Chip Set

Intel

Video Chip Set

None

Maximum Onboard Memory

128MB (EDO supported)

Maximum Video Memory

None

Cache

256/512KB

BIOS

Award

Dimensions

330mm x 218mm

I/O Options

32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, PS/2 mouse interface, serial ports (2), cache slot, VRM connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 2

CN1

Turbo switch

J4

Serial port 1

CN2

Turbo LED

J5

Parallel port

CN3

Green PC LED

J6

Floppy drive interface

CN4

Chassis fan power

J7

IDE interface 2

CN5

PS/2 mouse interface

J10

IDE interface 1

CN6

IDE interface LED

JP5

PS/2 mouse port

CN7

Green PC connector

JP14

Power LED & keylock

J1

32-bit PCI slots

PC1 - PC4

Speaker

J2

Cache slot

SL1

Reset switch

J3

VRM connector

VRM

USER CONFIGURABLE SETTINGS

Function

Label

Position

SMC chip enabled

J24

Open

 

SMC chip disabled

J24

Closed

Flash BIOS voltage select 5v

JP6

Pins 1 & 2 closed

 

Flash BIOS voltage select 12v

JP6

Pins 2 & 3 closed

 

Jumper information unavailable

JP12

Unidentified

Clock rate set as AT CLOCK

JP15

Pins 1 & 2 closed

 

Clock rate set as 12MHz

JP15

Pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

8MB

(2) 1M x 36

None

16MB

(2) 1M x 36

(2) 1M x 36

16MB

(2) 2M x 36

None

24MB

(2) 1M x 36

(2) 2M x 36

24MB

(2) 2M x 36

(2) 1M x 36

32MB

(2) 2M x 36

(2) 2M x 36

32MB

(2) 4M x 36

None

40MB

(2) 1M x 36

(2) 4M x 36

40MB

(2) 4M x 36

(2) 1M x 36

48MB

(2) 2M x 36

(2) 4M x 36

48MB

(2) 4M x 36

(2) 2M x 36

64MB

(2) 4M x 36

(2) 4M x 36

64MB

(2) 8M x 36

None

72MB

(2) 1M x 36

(2) 8M x 36

72MB

(2) 8M x 36

(2) 1M x 36

80MB

(2) 2M x 36

(2) 8M x 36

80MB

(2) 8M x 36

(2) 2M x 36

96MB

(2) 4M x 36

(2) 8M x 36

96MB

(2) 8M x 36

(2) 4M x 36

128MB

(2) 8M x 36

(2) 8M x 36

Note: Board accepts EDO memory. Board also accepts x 32 SIMMs.

CACHE CONFIGURATION

Size

Bank 0

TAG

SL1

256KB (A)

(2) 32K x 32

None

256KB module installed

256KB (B)

(2) 32K x 32

(1) 8K/16K x 8

Not installed

512KB (A)

(2) 64K x 32

(1) 16K/32K x 8

Not installed

512KB (B)

(2) 32K x 32

(1) 16K/32K x 8

256KB module installed

Note: If 256KB (A) configuration is used, see jumper setting for TP1 below.

CACHE JUMPER CONFIGURATION

Size

JP10

JP11

256KB (B)

Pins 1 & 2 closed

Pins 1 & 2 closed

512KB (A)

Pins 1 & 2 closed

Pins 1 & 2 closed

512KB (B)

Pins 2 & 3 closed

Pins 2 & 3 closed

CACHE JUMPER CONFIGURATION

Size

TP1

Bank 0 enabled

Open

Bank 0 disabled

Pins 1 & 2, 3 & 4 closed

CPU SPEED SELECTION

CPU speed

Clock speed

Multiplier

J25

JP7

JP9

JPS1

JPS2

75MHz

50MHz

1.5x

1 & 2

2 & 3

2 & 3

Open

Open

90MHz

60MHz

1.5x

2 & 3

2 & 3

2 & 3

Closed

Open

100MHz

66MHz

1.5x

2 & 3

2 & 3

2 & 3

Closed

Closed

120MHz

60MHz

2x

2 & 3

1 & 2

2 & 3

Closed

Open

133MHz

66MHz

2x

2 & 3

1 & 2

2 & 3

Closed

Closed

150MHz

60MHz

2.5x

2 & 3

1 & 2

1 & 2

Closed

Open

166MHz

66MHz

2.5x

2 & 3

1 & 2

1 & 2

Closed

Closed

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION

Type

JP1

P54C/P54CS

Pins 1 & 2 closed

P55C/P55CT

Pins 2 & 3 closed

CACHE JUMPER CONFIGURATION (ESCM CACHE MODULE)

Size

JP1

256KB

Pins 1 & 2, 5 & 6 closed

512KB

Pins 2 & 3, 4 & 5 closed








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