GIGA-BYTE TECHNOLOGY CO., LTD.

GA-586AM

Processor           CXM1/Pentium
Processor Speed     75/90/100/120/133/150MHz
Chip Set            UMC
Max. Onboard DRAM   128MB
Cache               256/512/1024KB
BIOS                Award
Dimensions          280mm x 220mm
I/O Options         32-bit PCI slots (4), floppy drive interface, green PC
                    connector, IDE interfaces (2), parallel port, serial
                    ports (2)
NPU Options         None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Serial port 1              CN3       External battery           J10

  Serial port 2              CN5       Chassis fan power          J14

  Floppy drive interface     CN6       Green PC connector         JP19

  Parallel port              CN7       Speaker                    JP20

  IDE interface 2            CN8       Reset switch               JP21

  IDE interface 1            CN9       Turbo switch               JP22

  Power LED & keylock        CN12      32-bit PCI slots         PC1 - PC4

  IDE interface LED           J8       Cache slot                 SL1

  Green PC/turbo LED          J9

  Note: The location of pin 1 on CN6 - CN9 is unidentified.

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper           Position

  »   CMOS memory normal operation            J10           pins 2 & 3
                                                              closed

      CMOS memory clear                       J10              Open

      Battery type select external            J10             Closed

                DRAM CONFIGURATION

      Size            Bank 0           Bank 1

       2MB        (2) 256K x 36         NONE

       4MB        (2) 512K x 36         NONE

       4MB        (2) 256K x 36    (2) 256K x 36

       6MB        (2) 256K x 36    (2) 512K x 36

       6MB        (2) 512K x 36    (2) 256K x 36

       8MB         (2) 1M x 36          NONE

       8MB        (2) 512K x 36    (2) 512K x 36

      10MB        (2) 256K x 36     (2) 1M x 36

      10MB         (2) 1M x 36     (2) 256K x 36

      12MB        (2) 512K x 36     (2) 1M x 36

      12MB         (2) 1M x 36     (2) 512K x 36

      16MB         (2) 2M x 36          NONE

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

      18MB        (2) 256K x 36     (2) 2M x 36

      18MB         (2) 2M x 36     (2) 256K x 36

      20MB        (2) 512K x 36     (2) 2M x 36

      20MB         (2) 2M x 36     (2) 512K x 36

      24MB         (2) 1M x 36      (2) 2M x 36

      24MB         (2) 2M x 36      (2) 1M x 36

      32MB         (2) 4M x 36          NONE

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

      34MB        (2) 256K x 36     (2) 4M x 36

      34MB         (2) 4M x 36     (2) 256K x 36

            DRAM CONFIGURATION (CON’T)

      Size            Bank 0           Bank 1

      36MB        (2) 512K x 36     (2) 4M x 36

      36MB         (2) 4M x 36     (2) 512K x 36

      40MB         (2) 1M x 36      (2) 4M x 36

      40MB         (2) 4M x 36      (2) 1M x 36

      48MB         (2) 2M x 36      (2) 4M x 36

      48MB         (2) 4M x 36      (2) 2M x 36

      64MB         (2) 8M x 36          NONE

      64MB         (2) 4M x 36      (2) 4M x 36

      66MB        (2) 256K x 36     (2) 8M x 36

      66MB         (2) 8M x 36     (2) 256K x 36

      68MB        (2) 512K x 36     (2) 8M x 36

      68MB         (2) 8M x 36     (2) 512K x 36

      72MB         (2) 1M x 36      (2) 8M x 36

      72MB         (2) 8M x 36      (2) 1M x 36

      80MB         (2) 2M x 36      (2) 8M x 36

      80MB         (2) 8M x 36      (2) 2M x 36

      96MB         (2) 4M x 36      (2) 8M x 36

      96MB         (2) 8M x 36      (2) 4M x 36

      128MB        (2) 8M x 36      (2) 8M x 36

                            CACHE CONFIGURATION

      Size             Bank 0            TAG                 SL1

    256KB (A)       (8) 32K x 8      (1) 8K or (1)      Not installed
                                       32K x 8

    256KB (B)           NONE         (1) 8K or (1)        Installed
                                       32K x 8

    512KB (A)       (8) 64K x 8       (1) 16K or        Not installed
                                     (1) 32K x 8

    512KB (B)           NONE          (1) 16K or          Installed
                                     (1) 32K x 8

       1MB          (8) 128K x 8     (1) 32K x 8        Not installed

               CACHE JUMPER CONFIGURATION

            Size                       JP15

         256KB (A)                     Open

         256KB (B)                     Open

         512KB (A)               pins 3 & 4 closed

         512KB (B)               pins 3 & 4 closed

            1MB              pins 1 & 2, 3 & 4 closed

  CPU TYPE CONFIGURATION

    Type          JP12

    CXM1         Closed

   Pentium        Open

                          CPU SPEED CONFIGURATION

         Speed                     JP5                     JP11

         75MHz              pins 1 & 2 closed              Open

         90MHz              pins 3 & 4 closed              Open

         100MHz             pins 1 & 2, 5 & 6              Open
                                 closed

         120MHz             pins 3 & 4 closed        pins 1 & 2 closed

         133MHz             pins 1 & 2, 5 & 6        pins 1 & 2, 3 & 4
                                 closed                   closed

         150MHz             pins 3 & 4 closed        pins 1 & 2 closed