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ACERALTOS 900 PRO (M11A), M11A

ACER, INC.

ACERALTOS 900 PRO (M11A), M11A

Device Type

Mainboard

Processor

Pentium Pro

Processor Speed

180/200MHz

Chip Set

Unidentified

Maximum Onboard Memory

384MB (EDO supported)

Cache

256/512KB (located on Pentium Pro CPU)

Dimensions

330mm x 218mm

I/O Options

32-bit PCI slots (4), floppy drive interface, IDE interfaces (2), SCSI interface, Wide Ultra SCSI interface, parallel port, PS/2 mouse port, serial ports (2), VRM connector

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 1

CN1

Power LED & keylock

CN16

Serial port 2

CN2

Reset switch/RDM cable connector

CN17

Parallel port

CN3

IDE interface LED

CN18

Floppy drive interface

CN5

CPU fan power

FA1

IDE interface 1

CN6

VRM connector

J7

IDE interface 2

CN7

Wide SCSI interface

J8

RDM connector

CN8

SCSI interface

J12

RDM connector

CN9

PS/2 mouse port

MS1

Speaker

CN15

32-bit PCI slots

PC1 - PC4

USER CONFIGURABLE SETTINGS

Function

Label

Position

Factory configured - do not alter

CN10

Unidentified

Factory configured - do not alter

CN11

Unidentified

Factory configured - do not alter

CN12

Unidentified

Factory configured - do not alter

CNN1

Unidentified

Factory configured - do not alter

FA2

Unidentified

Factory configured - do not alter

FA3

Unidentified

Factory configured - do not alter

FA4

Unidentified

BIOS type select Acer

J4

Pins 1 & 2 closed

 

BIOS type select OEM

J4

Pins 2 & 3 closed

Password enabled

J5

Pins 1 & 2 closed

 

Password disabled

J5

Pins 2 & 3 closed

SCSI type select wide

J6

Closed

 

SCSI type select narrow

J6

Open

Buzzer enabled

J13

Pins 1 & 2 closed

 

External speaker enabled

J13

Pins 2 & 3 closed

Reset switch enabled

JMP1

Pins 1 & 2 closed

 

Reset switch disabled, Green PC enabled

JMP1

Pins 2 & 3 closed

SIMM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

8MB

(2) 1M x 36

None

None

16MB

(2) 1M x 36

(2) 1M x 36

None

16MB

(2) 2M x 36

None

None

24MB

(2) 2M x 36

(2) 1M x 36

None

24MB

(2) 1M x 36

(2) 1M x 36

(2) 1M x 36

32MB

(2) 4M x 36

None

None

32MB

(2) 2M x 36

(2) 2M x 36

None

40MB

(2) 4M x 36

(2) 1M x 36

None

SIMM CONFIGURATION (CON'T)

Size

Bank 0

Bank 1

Bank 2

48MB

(2) 4M x 36

(2) 2M x 36

None

48MB

(2) 4M x 36

(2) 1M x 36

(2) 1M x 36

56MB

(2) 4M x 36

(2) 2M x 36

(2) 1M x 36

64MB

(2) 8M x 36

None

None

64MB

(2) 4M x 36

(2) 4M x 36

None

80MB

(2) 8M x 36

(2) 2M x 36

None

80MB

(2) 8M x 36

(2) 1M x 36

(2) 1M x 36

88MB

(2) 8M x 36

(2) 2M x 36

(2) 1M x 36

96MB

(2) 8M x 36

(2) 4M x 36

None

96MB

(2) 4M x 36

(2) 4M x 36

(2) 4M x 36

96MB

(2) 8M x 36

(2) 2M x 36

(2) 2M x 36

104MB

(2) 8M x 36

(2) 4M x 36

(2) 1M x 36

112MB

(2) 8M x 36

(2) 4M x 36

(2) 2M x 36

128MB

(2) 8M x 36

(2) 4M x 36

(2) 4M x 36

128MB

(2) 16M x 36

None

None

128MB

(2) 8M x 36

(2) 8M x 36

None

136MB

(2) 8M x 36

(2) 8M x 36

(2) 1M x 36

136MB

(2) 16M x 36

(2) 1M x 36

None

144MB

(2) 16M x 36

(2) 2M x 36

None

144MB

(2) 16M x 36

(2) 1M x 36

(2) 1M x 36

152MB

(2) 16M x 36

(2) 2M x 36

(2) 1M x 36

160MB

(2) 16M x 36

(2) 4M x 36

None

160MB

(2) 16M x 36

(2) 2M x 36

(2) 2M x 36

168MB

(2) 16M x 36

(2) 4M x 36

(2) 1M x 36

176MB

(2) 16M x 36

(2) 4M x 36

(2) 2M x 36

192MB

(2) 16M x 36

(2) 8M x 36

None

192MB

(2) 16M x 36

(2) 4M x 36

(2) 4M x 36

200MB

(2) 16M x 36

(2) 8M x 36

(2) 1M x 36

208MB

(2) 16M x 36

(2) 8M x 36

(2) 2M x 36

224MB

(2) 16M x 36

(2) 8M x 36

(2) 4M x 36

256MB

(2) 16M x 36

(2) 16M x 36

None

256MB

(2) 16M x 36

(2) 8M x 36

(2) 8M x 36

264MB

(2) 16M x 36

(2) 16M x 36

(2) 1M x 36

272MB

(2) 16M x 36

(2) 16M x 36

(2) 2M x 36

288MB

(2) 16M x 36

(2) 16M x 36

(2) 4M x 36

320MB

(2) 16M x 36

(2) 16M x 36

(2) 8M x 36

384MB

(2) 16M x 36

(2) 16M x 36

(2) 16M x 36

Note: Board accepts EDO memory.

CACHE CONFIGURATION

Note: 256KB/512KB cache is located on the Pentium Pro CPU.

CPU SPEED SELECTION (PENTIUM 5 COLUMNS)

CPU speed

Clock speed

Multiplier

CN13/

pins

1 & 5

CN13/

pins

2 & 6

CN13/

pins

3 & 7

CN13/

pins

4 & 8

J9

180MHz

60MHz

3x

Closed

Closed

Open

Closed

1 & 2

200MHz

66MHz

3x

Closed

Closed

Open

Closed

2 & 3

Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION

Voltage

CN14/pins 1 & 5

CN14/pins 2 & 6

CN14/pins 3 & 7

CN14/pins 4 & 8

 

2.1v

Open

Open

Open

Closed

 

2.2v

Open

Open

Closed

Open

 

2.3v

Open

Open

Closed

Closed

 

2.4v

Open

Closed

Open

Open

 

2.5v

Open

Closed

Open

Closed

 

2.6v

Open

Closed

Closed

Open

 

2.7v

Open

Closed

Closed

Closed

 

2.8v

Closed

Open

Open

Open

 

2.9v

Closed

Open

Open

Closed

 

3.0v

Closed

Open

Closed

Open

 

3.1v

Closed

Open

Closed

Closed

 

3.2v

Closed

Closed

Open

Open

3.3v

Closed

Closed

Open

Closed

 

3.4v

Closed

Closed

Closed

Open

 

3.5v

Closed

Closed

Closed

Closed

SCSI TERMINATON SELECTION

Setting

J10

 

Termination disabled

Open

 

Termination enabled

Pins 1 & 2 closed

Termination switchable through SCSI select utility

Pins 2 & 3 closed