
ACER, INC.

ACERALTOS 9100 (M9N), M9N

Device Type                Mainboard
Processor                  Pentium II
Processor Speed            266/300MHz
Chip Set                   Intel 440FX
Video Chip Set             Unidentified
Maximum Onboard Memory     128MB (EDO supported)
Maximum Video Memory       2MB
Cache                      256/512KB (located on Pentium II CPU)
BIOS                       Acer
Dimensions                 305mm x 244mm
I/O Options                32-bit PCI slots (5), Ethernet 10BaseT
                           connector, floppy drive interface, IDE
                           interface, SCSI interface, Wide Ultra SCSI
                           interface, PS/2 mouse port, serial ports (2),
                           VGA port, USB connectors (2), ATX power
                           connector, CPU slot

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                 Location

  ATX power connector       ATX        Ethernet 10BaseT          CN16
                                       connector

  Chassis fan power         C1         Floppy drive              CN17
                                       interface

  Chassis fan power         C2         SCSI interface            CN18

  Chassis fan power         C3         USB connector 1           CN19

  Serial port 1             CN1        USB connector 2          CN19A

  Serial port 2             CN3        External SCSI             CN22
                                       interface

  Software shutdown         CN4        IDE interface LED         CN23
  for 420 power

  PS/2 mouse port           CN7        SMM connector             CN25

  Soft off power            CN8        External SCSI             CN26
  supply                               interface

  Power LED & keylock       CN9        RDM connector             CN27

  Redundant power          CN10        RDM connector             CN28
  supply connector

  Redundant power          CN12        Chassis intrusion         CNN3
  supply shutdown                      connector

  LED connector            CN13        32-bit PCI slots       PC1 - PC5

  Parallel port            CN14        CPU slot                  SL2

  VGA port                 CN14A       3.3v power                 U3

  IDE interface            CN15        3.3v power                 U8

                         USER CONFIGURABLE SETTINGS

               Function                    Label            Position

    Factory configured - do not            CN11          Unidentified
     alter

    Software shutdown for CN4              JP1        Pins 1 & 2 closed
     enabled

     Software shutdown for CN4              JP1        Pins 2 & 3 closed
     disabled

    BIOS type select Acer                  JP2        Pins 1 & 2 closed

     BIOS type select OEM                   JP2        Pins 2 & 3 closed

    Password disabled                      JP3        Pins 2 & 3 closed

     Password enabled                       JP3        Pins 1 & 2 closed

    On board video enabled                 JP5        Pins 1 & 2 closed

     On board video disabled                JP5        Pins 2 & 3 closed

    Factory configured - do not            SL1           Unidentified
     alter

            VIDEO MEMORY CONFIGURATION

      Size            Bank 0           Bank 1

       1MB        (2) 256K x 16         None

       2MB        (2) 256K x 16    (2) 256K x 16

                         SCSI TERMINATON SELECTION

                 Setting                                JP4

          Termination disabled                         Open

           Termination enabled                   Pins 1 & 2 closed

     Termination switchable through             Pins 2 & 3 closed
           SCSI select utility

[Image]

                                            CONNECTIONS

  Purpose                             Location     Purpose                             Location

  Chassis fan power                     CN2        Chassis fan power                      JP3

  Chassis fan power                     CN3        Chassis fan power                      JP4

                         DIMM CONFIGURATION

     Size        Bank 0        Bank 1        Bank 2       Bank 3

     8MB       (1) 1M x 64      None          None         None

     16MB      (1) 2M x 64      None          None         None

     16MB      (1) 1M x 64  (1) 1M x 64       None         None

     24MB      (1) 2M x 64  (1) 1M x 64       None         None

     24MB      (1) 1M x 64  (1) 1M x 64   (1) 1M x 64      None

     32MB      (1) 4M x 64      None          None         None

     32MB      (1) 2M x 64  (1) 2M x 64       None         None

     32MB      (1) 1M x 64  (1) 1M x 64   (1) 1M x 64   (1) 1M x 64

     40MB      (1) 4M x 64  (1) 1M x 64       None         None

     48MB      (1) 4M x 64  (1) 2M x 64       None         None

     48MB      (1) 2M x 64  (1) 2M x 64   (1) 2M x 64      None

     64MB      (1) 2M x 64  (1) 2M x 64   (1) 2M x 64   (1) 2M x 64

     64MB      (1) 8M x 64      None          None         None

     64MB      (1) 4M x 64  (1) 4M x 64       None         None

     72MB      (1) 8M x 64  (1) 1M x 64       None         None

     80MB      (1) 8M x 64  (1) 2M x 64       None         None

     96MB      (1) 8M x 64  (1) 4M x 64       None         None

     96MB      (1) 4M x 64  (1) 4M x 64   (1) 4M x 64      None

                        DIMM CONFIGURATION (CON'T)

      Size          Bank 0        Bank 1         Bank 2         Bank 3

     128MB         (1) 16M x       None           None           None
                      64

     128MB        (1) 8M x 64   (1) 8M x 64       None           None

     128MB        (1) 4M x 64   (1) 4M x 64    (1) 4M x 64   (1) 4M x 64

     136MB         (1) 16M x    (1) 1M x 64       None           None
                      64

     144MB         (1) 16M x    (1) 2M x 64       None           None
                      64

     176MB         (1) 16M x    (1) 2M x 64    (1) 2M x 64   (1) 2M x 64
                      64

     192MB         (1) 16M x    (1) 8M x 64       None           None
                      64

     192MB        (1) 8M x 64   (1) 8M x 64    (1) 8M x 64       None

     256MB         (1) 16M x     (1) 16M x        None           None
                      64            64

     256MB        (1) 8M x 64   (1) 8M x 64    (1) 8M x 64   (1) 8M x 64

     272MB         (1) 16M x     (1) 16M x     (1) 1M x 64   (1) 1M x 64
                      64            64

     288MB         (1) 16M x     (1) 16M x     (1) 2M x 64   (1) 2M x 64
                      64            64

     320MB         (1) 16M x     (1) 16M x     (1) 4M x 64   (1) 4M x 64
                      64            64

     384MB         (1) 16M x     (1) 16M x      (1) 16M x        None
                      64            64             64

     512MB         (1) 16M x     (1) 16M x      (1) 16M x    (1) 16M x 64
                      64            64             64

  Note: Board accepts EDO memory.

                     CACHE CONFIGURATION

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

                              CPU SPEED SELECTION

   CPU     Clock   Multiplier   JP1/pins   JP1/pins   JP1/pins   JP1/pins   JP5
  speed    speed                 1 & 2      3 & 4      5 & 6      7 & 8

  266MHz   66MHz       4x        Closed     Closed     Closed     Open      1 &
                                                                            2

  300MHz   66MHz      4.5x       Closed      Open      Closed     Open      1 &
                                                                            2

  Note: Pins designated should be in the closed position.

