
ACER, INC.

ACERPOWER425SE/433E/466DE (J3 PROJECT)

Processor     80486SX/80487SX/ODP486SX/80486DX/80486DX2/Pentium
              Overdrive/Pentium (depends on CPU card installed)
Processor     25/33/40/50(internal)/50/66(internal)/66MHz
Speed
Chip Set      Unidentified
Max. Onboard  256MB
DRAM
Cache         64/128/256/1024KB (depends on CPU card installed)
BIOS          Unidentified
Dimensions    330mm x 218mm
I/O Options   External CPU card, 32-bit VESA local bus slots (2), PS/2
              mouse port
NPU Options   None

[Image]

                                CONNECTIONS

  Purpose                     Location     Purpose              Location

  PS/2 mouse port                CN1       Chassis fan power      JJ1

  SCSI interface LED             J5        Chassis fan power      JJ2

  Speaker                        J6        32-bit VESA local   SL1 & SL2
                                           bus slots

  Optional mouse/keyboard        J7        External CPU slot      SL3

                        USER CONFIGURABLE SETTINGS

                Function
                                             Jumper
                                                             Position

  
      Factory configured - do not
      alter
                                              JP5
                                                               N/A

  
      Password disabled
                                              JP6
                                                            pins 2 & 3
                                                              closed


      Password enabled
                                              JP6
                                                            pins 1 & 2
                                                              closed

  
      CMOS memory normal operation
                                              JP7
                                                               Open


      CMOS memory clear
                                              JP7
                                                              Closed

  
      IRQ select IRQ11
                                              JP8
                                                            pins 2 & 3
                                                              closed


      IRQ select IRQ10
                                              JP8
                                                            pins 1 & 2
                                                              closed

  
      Onboard buzzer enabled
                                              JP9
                                                            pins 1 & 2
                                                              closed


      External speaker enabled
                                              JP9
                                                            pins 2 & 3
                                                              closed

                     DRAM CONFIGURATION (SYSTEM BOARD)

      Size          Bank 0        Bank 1         Bank 2         Bank 3

      4MB         (1) 1M x 36      NONE           NONE           NONE

      8MB         (1) 1M x 36   (1) 1M x 36       NONE           NONE

      12MB        (1) 1M x 36   (1) 1M x 36    (1) 1M x 36       NONE

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

      16MB        (1) 4M x 36      NONE           NONE           NONE

      20MB        (1) 1M x 36   (1) 4M x 36       NONE           NONE

      24MB        (1) 1M x 36   (1) 1M x 36    (1) 4M x 36       NONE

      24MB        (1) 1M x 36   (1) 4M x 36    (1) 1M x 36       NONE

      28MB        (1) 1M x 36   (1) 1M x 36    (1) 4M x 36   (1) 1M x 36

      28MB        (1) 1M x 36   (1) 4M x 36    (1) 1M x 36   (1) 1M x 36

      32MB        (1) 4M x 36   (1) 4M x 36       NONE           NONE

      36MB        (1) 1M x 36   (1) 4M x 36    (1) 4M x 36       NONE

      36MB        (1) 4M x 36   (1) 4M x 36    (1) 1M x 36       NONE

      40MB        (1) 1M x 36   (1) 1M x 36    (1) 4M x 36   (1) 4M x 36

      40MB        (1) 1M x 36   (1) 4M x 36    (1) 4M x 36   (1) 1M x 36

      40MB        (1) 4M x 36   (1) 4M x 36    (1) 1M x 36   (1) 1M x 36

      48MB        (1) 4M x 36   (1) 4M x 36    (1) 4M x 36       NONE

      52MB        (1) 1M x 36   (1) 4M x 36    (1) 4M x 36   (1) 4M x 36

      52MB        (1) 4M x 36   (1) 4M x 36    (1) 4M x 36   (1) 1M x 36

      64MB        (1) 4M x 36   (1) 4M x 36    (1) 4M x 36   (1) 4M x 36

      64MB         (1) 16M x       NONE           NONE           NONE
                      36

      72MB        (1) 1M x 36   (1) 1M x 36     (1) 16M x        NONE
                                                   36

      80MB        (1) 4M x 36    (1) 16M x        NONE           NONE
                                    36

      84MB        (1) 1M x 36   (1) 4M x 36     (1) 16M x        NONE
                                                   36

      84MB        (1) 4M x 36    (1) 16M x     (1) 1M x 36       NONE
                                    36

      88MB        (1) 1M x 36   (1) 1M x 36    (1) 4M x 36   (1) 16M x 36

      88MB        (1) 4M x 36    (1) 16M x     (1) 1M x 36   (1) 1M x 36
                                    36

      96MB        (1) 4M x 36   (1) 4M x 36     (1) 16M x        NONE
                                                   36

      96MB        (1) 4M x 36    (1) 16M x     (1) 4M x 36       NONE
                                    36

     100MB        (1) 1M x 36   (1) 4M x 36    (1) 4M x 36   (1) 16M x 36

     100MB        (1) 4M x 36    (1) 16M x     (1) 4M x 36   (1) 1M x 36
                                    36

                  DRAM CONFIGURATION (SYSTEM BOARD CON'T)

      Size
                    Bank 0
                                  Bank 1
                                                 Bank 2
                                                                Bank 3

     112MB
                  (1) 4M x 36
                                (1) 4M x 36
                                               (1) 4M x 36
                                                             (1) 16M x 36

     112MB
                  (1) 4M x 36
                                 (1) 16M x
                                    36
                                               (1) 4M x 36
                                                             (1) 4M x 36

     128MB
                   (1) 16M x
                      36
                                 (1) 16M x
                                    36
                                                  NONE
                                                                 NONE

     132MB
                   (1) 16M x
                      36
                                 (1) 16M x
                                    36
                                               (1) 1M x 36
                                                                 NONE

     136MB
                  (1) 1M x 36
                                (1) 1M x 36
                                                (1) 16M x
                                                   36
                                                             (1) 16M x 36

     136MB
                   (1) 16M x
                      36
                                 (1) 16M x
                                    36
                                               (1) 1M x 36
                                                             (1) 1M x 36

     144MB
                  (1) 4M x 36
                                 (1) 16M x
                                    36
                                                (1) 16M x
                                                   36
                                                                 NONE

     144MB
                   (1) 16M x
                      36
                                 (1) 16M x
                                    36
                                               (1) 4M x 36
                                                                 NONE

     148MB
                  (1) 1M x 36
                                (1) 4M x 36
                                                (1) 16M x
                                                   36
                                                             (1) 16M x 36

     148MB
                   (1) 16M x
                      36
                                 (1) 16M x
                                    36
                                               (1) 4M x 36
                                                             (1) 1M x 36

     160MB
                  (1) 4M x 36
                                (1) 4M x 36
                                                (1) 16M x
                                                   36
                                                             (1) 16M x 36

     160MB
                  (1) 4M x 36
                                 (1) 16M x
                                    36
                                               (1) 4M x 36
                                                             (1) 16M x 36

     160MB
                   (1) 16M x
                      36
                                 (1) 16M x
                                    36
                                               (1) 4M x 36
                                                             (1) 4M x 36

     192MB
                   (1) 16M x
                      36
                                 (1) 16M x
                                    36
                                                (1) 16M x
                                                   36
                                                                 NONE

     208MB
                  (1) 4M x 36
                                 (1) 16M x
                                    36
                                                (1) 16M x
                                                   36
                                                             (1) 16M x 36

     208MB
                   (1) 16M x
                      36
                                 (1) 16M x
                                    36
                                               (1) 4M x 36
                                                             (1) 16M x 36

     256MB
                   (1) 16M x
                      36
                                 (1) 16M x
                                    36
                                                (1) 16M x
                                                   36
                                                             (1) 16M x 36

      VESA WAIT STATE CONFIGURATION

     Wait states             JP3

    0 wait states     pins 1 & 2 closed

    1 wait state      pins 2 & 3 closed

         BUS SPEED CONFIGURATION

      CPU speed
                             JP4

      <= 33MHz
                      pins 1 & 2 closed

       > 33MHz
                      pins 2 & 3 closed

                      EXTERNAL BATTERY CONFIGURATION

      Type           JP10           JP11          JP12           JP13

     Dallas        pins 2 & 3    pins 2 & 3     pins 2 & 3    pins 2 & 3
                    closed         closed        closed         closed

   Benchmarq       pins 1 & 2    pins 1 & 2     pins 1 & 2    pins 1 & 2
                    closed         closed        closed         closed

              AIC-7770 CONFIGURATION

     Setting
                       JP1
                                        JP2

    Installed
                       Open
                                        Open

  Not installed
                      Closed
                                       Closed

[Image]

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     LADS for VLB select 33MHz               JP3           pins 1 & 2
                                                              closed

      LADS for VLB select 50MHz               JP3           pins 2 & 3
                                                              closed

     Factory configured - do not             JP5              N/A
      alter

     Factory configured - do not             JP6              N/A
      alter

     Factory configured - do not             JP7              N/A
      alter

     Local bus disabled                      JP10          pins 1 & 2
                                                              closed

      Local bus enabled                       JP10          pins 2 & 3
                                                              closed

                            CACHE CONFIGURATION

     Size
                   Bank 0
                                  Bank 1
                                                  TAG
                                                             TAG (DIRTY)

     64KB
                 (4) 8K x 8
                                (4) 8K x 8
                                              (1) 8K x 8
                                                             (1) 16K x 1

     128KB
                 (4) 32K x 8
                                   NONE
                                              (1) 8K x 8
                                                             (1) 16K x 1

     256KB
                 (4) 32K x 8
                                (4) 32K x 8
                                              (1) 32K x 8
                                                             (1) 16K x 1

      1MB
                 (4) 128K x
                     8
                                (4) 128K x
                                    8
                                               (1) 128K x
                                                   8
                                                             (1) 64K x 1

  Note: The orientation of the cache banks and TAG banks are
  unidentified.

                        CACHE JUMPER CONFIGURATION

  Size     JP11     JP12      JP13     JP14     JP18      JP19     JP20

  64KB     Open     Open      Open     Open     Open      Open     Open

  128KB   Closed    Open      Open     Open     Open     Closed    Open

  256KB   Closed    Closed    Open     Open     Open     Closed   Closed

  1MB     Closed    Closed   Closed   Closed    Closed   Closed   Closed

                   CACHE BANK CONFIGURATION

        Type
                             JP15
                                                 JP16

     Single bank
                       pins 1 & 2 closed
                                           pins 1 & 2 closed

     Double bank
                       pins 2 & 3 closed
                                           pins 2 & 3 closed

                          CPU SPEED CONFIGURATION

     Type           JP1           JP2            JP8             JP9

    25MHz          Open           Open        pins 1 & 2      pins 1 & 2
                                                closed         closed

    33MHz          Open          Closed       pins 1 & 2      pins 2 & 3
                                                closed         closed

    40MHz         Closed         Closed       pins 2 & 3      pins 1 & 2
                                                closed         closed

    50iMHz         Open           Open        pins 1 & 2      pins 1 & 2
                                                closed         closed

    50MHz         Closed         Closed       pins 2 & 3      pins 2 & 3
                                                closed         closed

    66iMHz         Open          Closed       pins 1 & 2      pins 2 & 3
                                                closed         closed

          CPU TYPE CONFIGURATION

        Type
                              JP4

       80486SX
                       pins 1 & 2 closed

      ODP486SX
                       pins 2 & 3 closed

       80487SX
                       pins 2 & 3 closed

       80486DX
                              Open

      80486DX2
                              Open

  Pentium Overdrive
                       pins 2 & 3 closed

                BUS SPEED CONFIGURATION

         CPU speed                     JP17

          <= 33MHz           pins 1 & 2, 3 & 4 closed

          > 33MHz                pins 2 & 3 closed

[Image]

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper           Position

     Local bus disabled                      JP4           pins 2 & 3
                                                              closed

      Local bus enabled                       JP4           pins 1 & 2
                                                              closed

                            CACHE CONFIGURATION

     Size
                  Bank 0
                                 Bank 1
                                                TAG
                                                            TAG (DIRTY)

    256KB
                (4) 32K x 8
                               (4) 32K x 8
                                              (1) 32K x
                                                 8
                                                            (1) 16K x 1

     1MB
                 (4) 128K x
                     8
                               (4) 128K x
                                   8
                                              (1) 32K x
                                                 8
                                                            (1) 64K x 1

            Note: The orientation of the cache banks and TAG banks are
            unidentified. The location of the TAG is unidentified.

           CACHE JUMPER CONFIGURATION

   Size      JP11     JP12      JP14      JP15

  256KB      Open     Open      Open      Open

   1MB      Closed   Closed    Closed    Closed

                        CPU FREQUENCY CONFIGURATION

      Speed
                         JP1
                                           JP2
                                                               JP3

      33MHz
                      pins 1 & 2
                       closed
                                        pins 1 & 2
                                          closed
                                                        pins 2 & 3 closed

      40MHz
                      pins 2 & 3
                       closed
                                        pins 2 & 3
                                          closed
                                                        pins 1 & 2 closed

      50MHz
                      pins 1 & 2
                       closed
                                        pins 2 & 3
                                          closed
                                                        pins 1 & 2 closed

      66MHz
                      pins 2 & 3
                       closed
                                        pins 1 & 2
                                          closed
                                                        pins 1 & 2 closed

      80MHz
                      pins 1 & 2
                       closed
                                        pins 1 & 2
                                          closed
                                                        pins 1 & 2 closed

