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P55CMA, P55CMS (REV. 2.0)

SUPER MICRO

P55CMA, P55CMS (REV. 2.0)

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

AMI

Dimensions

330mm x 218mm

I/O Options

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

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

VRM connector

J1

External battery

JP30

Chassis fan power

J18

Turbo LED

JP32

Power LED & keylock

J32

IR connector

JP68

IDE interface LED

J34

Serial port 2

JS1

Reset switch

J35

Serial port 1

JS2

Speaker

J39

Parallel port

JS3

IDE interface 1

J70

Floppy drive interface

JS4

IDE interface 2

J71

32-bit PCI slots

PC1 - PC4

Legacy connector

J85

Cache slot

SL1

PS/2 mouse port

J96

   

Note: J18 may not be present on all boards.

USER CONFIGURABLE SETTINGS

Function

Label

Position

Factory configured - do not alter

J28

Closed

Factory configured - do not alter

J37

Pins 1 & 2 closed

Factory configured - do not alter

J41

Unidentified

CMOS memory normal operation

J42

Pins 1 & 2 closed

 

CMOS memory clear

J42

Pins 2 & 3 closed

Factory configured - do not alter

J43

Open

ISA CLCK = PCI CLCK/4

J67

Pins 2 & 3 closed

 

ISA CLCK = PCI CLCK/3

J67

Pins 1 & 2 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

8MB

(2) 1M x 32

None

16MB

(2) 2M x 32

None

16MB

(2) 1M x 32

(2) 1M x 32

24MB

(2) 1M x 32

(2) 2M x 32

32MB

(2) 4M x 32

None

32MB

(2) 2M x 32

(2) 2M x 32

40MB

(2) 1M x 32

(2) 4M x 32

48MB

(2) 2M x 32

(2) 4M x 32

64MB

(2) 8M x 32

None

64MB

(2) 4M x 32

(2) 4M x 32

72MB

(2) 1M x 32

(2) 8M x 32

80MB

(2) 2M x 32

(2) 8M x 32

96MB

(2) 4M x 32

(2) 8M x 32

128MB

(2) 8M x 32

(2) 8M x 32

Note: Board accepts EDO memory.

CACHE CONFIGURATION

Size

SL1

256KB

256KB module installed

512KB

512KB module installed

CPU SPEED SELECTION

Speed

J27

J29

J31

J40

75MHz

Open

Closed

Closed

Open

90MHz

Open

Closed

Open

Open

100MHz

Open

Open

Closed

Open

120MHz

Closed

Closed

Open

Open

133MHz

Closed

Open

Closed

Open

150MHz

Closed

Open

Closed

Closed

166MHz

Closed

Open

Closed

Closed

CPU VOLTAGE SELECTION

Voltage

JP11

3.3v

Pins 2 & 3 closed

3.4v

Open

3.5v

Pins 1 & 2 closed