
ACER, INC.

ACERALTOS 9000 PRO (M9B), M9B

Device Type                 Mainboard
Processor                   Pentium Pro
Processor Speed             200MHz
Chip Set                    Intel 440FX
Video Chip Set              ATI
Maximum Onboard Memory      512MB (EDO supported)
Maximum Video Memory        2MB
Cache                       256KB (located on Pentium Pro CPU)
BIOS                        Acer
Dimensions                  305mm x 244mm
I/O Options                 32-bit PCI slots (5), green PC connector,
                            floppy drive interface, IDE interface, SCSI
                            interface, SCSI-2 interface, parallel port,
                            PS/2 mouse port, serial ports (2), VGA port,
                            CPU slot

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Parallel port               C1       RDM connector              CN6

  VGA port                    C2       RDM connector              CN7

  PS/2 mouse port             C3       Floppy drive               CN8
                                       interface

  Serial port 1               C4       Wide SCSI interface        CN11

  Serial port 2               C5       SCSI-2 interface           CN12

  Chassis fan power           C6       LED board connector        CN13

  Chassis fan power           C7       IDE interface LED          CN14

  Chassis fan power           C8       Power LED & keylock        CN15

  3.3v power                 CN1       Speaker                    CN16

  5v power                   CN2       32-bit PCI slots         PC1 - PC5

  Backplane status LED       CN3       Green PC connector         SW1

  IDE interface              CN5       CPU slot                   SL1

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

      Password enabled                        JP1           Pins 1 & 2
                                                              closed

      Password disabled                       JP1           Pins 2 & 3
                                                              closed

      BIOS type select Acer                   JP2           Pins 1 & 2
                                                              closed

      BIOS type select OEM                    JP2           Pins 2 & 3
                                                              closed

      Termination enabled                     JP3           Pins 1 & 2
                                                              closed

      Termination switchable through          JP3           Pins 2 & 3
      SCSI select utility                                     closed

     SCSI select standard                    JP4           Pins 2 & 3
                                                              closed

      SCSI select wide                        JP4           Pins 1 & 2
                                                              closed

      Front panel reset enabled               JP5           Pins 1 & 2
                                                              closed

      Front panel reset disabled              JP5           Pins 2 & 3
                                                              closed

      Buzzer enabled                          JP6           Pins 1 & 2
                                                              closed

      External speaker enabled                JP6           Pins 2 & 3
                                                              closed

                           SIMM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2        Bank 3

     32MB       (2) 4M x 36       None           None          None

     32MB       (2) 2M x 36   (2) 2M x 36        None          None

     32MB       (2) 1M x 36   (2) 1M x 36    (2) 1M x 36    (2) 1M x 36

     48MB       (2) 2M x 36   (2) 2M x 36    (2) 2M x 36       None

     64MB       (2) 2M x 36   (2) 2M x 36    (2) 2M x 36    (2) 2M x 36

     64MB       (2) 8M x 36       None           None          None

     64MB       (2) 4M x 36   (2) 4M x 36        None          None

     72MB       (2) 8M x 36   (2) 1M x 36        None          None

     80MB       (2) 8M x 36   (2) 2M x 36        None          None

     96MB       (2) 8M x 36   (2) 4M x 36        None          None

                        SIMM CONFIGURATION (CON'T)

     Size          Bank 0         Bank 1         Bank 2         Bank 3

     96MB        (2) 4M x 36   (2) 4M x 36    (2) 4M x 36        None

     128MB       (2) 16M x 36      None           None           None

     128MB       (2) 8M x 36   (2) 8M x 36        None           None

     128MB       (2) 4M x 36   (2) 4M x 36    (2) 4M x 36    (2) 4M x 36

     136MB       (2) 16M x 36  (2) 1M x 36        None           None

     144MB       (2) 16M x 36  (2) 2M x 36        None           None

     160MB       (2) 16M x 36  (2) 4M x 36        None           None

     192MB       (2) 16M x 36  (2) 8M x 36        None           None

     192MB       (2) 8M x 36   (2) 8M x 36    (2) 8M x 36        None

     224MB       (2) 16M x 36  (2) 4M x 36    (2) 4M x 36    (2) 4M x 36

     256MB       (2) 16M x 36  (2) 16M x 36       None           None

     256MB       (2) 8M x 36   (2) 8M x 36    (2) 8M x 36    (2) 8M x 36

     272MB       (2) 16M x 36  (2) 16M x 36   (2) 1M x 36    (2) 1M x 36

     288MB       (2) 16M x 36  (2) 16M x 36   (2) 2M x 36    (2) 2M x 36

     320MB       (2) 16M x 36  (2) 16M x 36   (2) 4M x 36    (2) 4M x 36

     384MB       (2) 16M x 36  (2) 16M x 36   (2) 16M x 36       None

     512MB       (2) 16M x 36  (2) 16M x 36   (2) 16M x 36   (2) 16M x 36

  Note: Board accepts EDO memory.

            VIDEO MEMORY CONFIGURATION

      Size            Bank 0           Bank 1

       1MB        (2) 256K x 16         None

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

[Image]

                                CONNECTIONS

  Purpose                 Location    Purpose                    Location

  CPU fan power              C1       VRM connector               VRM1

  CPU fan power              C2       VRM connector               VRM2

                   CACHE CONFIGURATION

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

                            CPU SPEED SELECTION

    CPU     Clock    Multiplier    CN1/     CN1/     CN1/    CN1/    J16
  speed     speed
                                   pins     pins     Pins    pins

                                  1 & 5     2 & 6    3 &    4 & 8
                                                      7

  200MHz    66MHz       3x        Closed    Closed   Open   Closed    2 &
                                                                      3

  Note: Pins designated should be in the closed position.

                          CPU 1 VOLTAGE SELECTION

    Voltage      CN2/pins 1 &   CN2/pins 2 &  CN2/pins 3 &   CN2/pins 4 &
                      5              6             7              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

                          CPU 2 VOLTAGE SELECTION

    Voltage      CN3/pins 1 &   CN3/pins 2 &  CN3/pins 3 &   CN3/pins 4 &
                      5              6             7              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

