
GIGA-BYTE TECHNOLOGY CO., LTD.

GA-586MS

Processor         CX M1/AM K5/Pentium
Processor Speed   75/90/100/120/125/133/150/166/180/200MHz
Chip Set          SIS
Video Chip Set    Unidentified
Maximum Onboard   512MB (EDO supported)
Memory
Maximum Video     Unidentified
Memory
Cache             256/512KB
BIOS              Award
Dimensions        305mm x 244mm
I/O Options       32-bit PCI slots (3), floppy drive interface, green PC
                  connector, IDE interfaces (2), parallel port, PS/2 mouse
                  port, serial ports (2), VGA port, IR connector, ATX
                  power connector
NPU Options       None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  ATX power connector        ATX       Reset switch               J14

  VGA port                   CN1       Speaker                    J17

  Parallel port              CN2       Chassis fan power          JP2

  PS/2 mouse port            CN3       Turbo switch               J20

  Serial port 1              CN4       Turbo LED                  J21

  Serial port 2              CN5       Keylock                    J26

  IDE interface 1            CN6       Green PC LED               JP6

  IDE interface 2            CN7       Soft off power supply      JP11

  Floppy drive interface     CN8       IDE interface LED          JP14

  IR connector               J11       Green PC connector         JP37

  Power LED                  J12       32-bit PCI slots         PC1  PC3

  Note: The location of J26 is unidentified.

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

  ?   Factory configured - do not          JP19          Unidentified
      alter

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

      8MB         (2) 1M x 36        None

      16MB        (2) 2M x 36        None

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

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

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

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

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

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

     128MB        (2) 16M x 36       None

     136MB        (2) 16M x 36   (2) 1M x 36

     144MB        (2) 16M x 36   (2) 2M x 36

     160MB        (2) 16M x 36   (2) 4M x 36

     192MB        (2) 16M x 36   (2) 8M x 36

     256MB        (2) 16M x 36   (2) 16M x 36

     256MB        (2) 32M x 36       None

     264MB        (2) 32M x 36   (2) 1M x 36

     272MB        (2) 32M x 36   (2) 2M x 36

          DRAM CONFIGURATION (CONT)

      Size          Bank 0          Bank 1

     288MB        (2) 32M x 36   (2) 4M x 36

     320MB        (2) 32M x 36   (2) 8M x 36

     384MB        (2) 32M x 36   (2) 16M x 36

     512MB        (2) 32M x 36   (2) 32M x 36

  Note: Board accepts EDO memory.

              CACHE CONFIGURATION

         Size                   Bank 0

         256KB               (2) 32K x 32

         512KB               (2) 64K x 32

  Note: The size of the TAG is unidentified.

                     VIDEO MEMORY CONFIGURATION

  Note: The size and location of the video memory is unidentified.

                        CPU SPEED SELECTION (CYRIX)

   CPU speed     Clock speed       Multiplier         JP1         JP5

    120MHz          50MHz              2x           4 & 7, 5     3 & 4
                                                    & 8, 6 &
                                                       9

    133MHz          55MHz              2x           4 & 7, 5     3 & 4
                                                    & 8, 6 &
                                                       9

    150MHz          60MHz              2x           4 & 7, 5     3 & 4
                                                    & 8, 6 &
                                                       9

  Note: Pins designated should be in the closed position.

                    CPU SPEED SELECTION (CYRIX, CONT)

  CPU speed       Clock      Multiplier      JP7        JP8        JP35
                  speed

    120MHz        50MHz          2x         1 & 2      1 & 2      1 & 2

    133MHz        55MHz          2x         2 & 3      2 & 3      1 & 2

    150MHz        60MHz          2x         2 & 3      1 & 2      1 & 2

  Note: Pins designated should be in the closed position.

                         CPU SPEED SELECTION (AMD)

   CPU speed     Clock speed      Multiplier         JP1          JP5

     75MHz          50MHz            1.5x          4 & 7, 5       Open
                                                   & 8, 6 &
                                                      9

     90MHz          60MHz            1.5x          4 & 7, 5       Open
                                                   & 8, 6 &
                                                      9

    100MHz          66MHz            1.5x          4 & 7, 5       Open
                                                   & 8, 6 &
                                                      9

  Note: Pins designated should be in the closed position.

                     CPU SPEED SELECTION (AMD, CONT)

  CPU speed       Clock      Multiplier      JP7        JP8        JP35
                  speed

    75MHz         50MHz         1.5x        1 & 2      1 & 2      1 & 2

    90MHz         60MHz         1.5x        2 & 3      1 & 2      1 & 2

    100MHz        66MHz         1.5x        1 & 2      2 & 3      1 & 2

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (INTEL)

   CPU speed     Clock speed       Multiplier         JP1         JP5

     75MHz          50MHz             1.5x          4 & 7, 5      Open
                                                    & 8, 6 &
                                                       9

     90MHz          60MHz             1.5x          4 & 7, 5      Open
                                                    & 8, 6 &
                                                       9

     100MHz         66MHz             1.5x          4 & 7, 5      Open
                                                    & 8, 6 &
                                                       9

     120MHz         60MHz              2x           4 & 7, 5     3 & 4
                                                    & 8, 6 &
                                                       9

     125MHz         50MHz             2.5x          4 & 7, 5   1 & 2, 3 &
                                                    & 8, 6 &       4
                                                       9

     133MHz         66MHz              2x           4 & 7, 5     3 & 4
                                                    & 8, 6 &
                                                       9

     150MHz         60MHz             2.5x          4 & 7, 5   1 & 2, 3 &
                                                    & 8, 6 &       4
                                                       9

  150MHz (P55C)     60MHz             2.5x          1 & 4, 2   1 & 2, 3 &
                                                    & 5, 3 &       4
                                                       6

     166MHz         66MHz             2.5x          4 & 7, 5   1 & 2, 3 &
                                                    & 8, 6 &       4
                                                       9

  166MHz (P55C)     66MHz             2.5x          1 & 4, 2   1 & 2, 3 &
                                                    & 5, 3 &       4
                                                       6

     180MHz         60MHz              3x           4 & 7, 5     1 & 2
                                                    & 8, 6 &
                                                       9

     200MHz         66MHz              3x           4 & 7, 5     1 & 2
                                                    & 8, 6 &
                                                       9

  200MHz (P55C)     66MHz              3x           1 & 4, 2     1 & 2
                                                    & 5, 3 &
                                                       6

  Note: Pins designated should be in the closed position.

                    CPU SPEED SELECTION (INTEL, CONT)

  CPU speed       Clock       Multiplier       JP7       JP8       JP35
                  speed

    75MHz         50MHz          1.5x         1 & 2     1 & 2     1 & 2

    90MHz         60MHz          1.5x         2 & 3     1 & 2     1 & 2

    100MHz        66MHz          1.5x         1 & 2     2 & 3     1 & 2

    120MHz        60MHz           2x          2 & 3     1 & 2     1 & 2

    125MHz        50MHz          2.5x         1 & 2     1 & 2     1 & 2

    133MHz        66MHz           2x          1 & 2     2 & 3     1 & 2

    150MHz        60MHz          2.5x         2 & 3     1 & 2     1 & 2

    150MHz        60MHz          2.5x         2 & 3     1 & 2     1 & 2
    (P55C)

    166MHz        66MHz          2.5x         1 & 2     2 & 3     1 & 2

    166MHz        66MHz          2.5x         1 & 2     2 & 3     1 & 2
    (P55C)

    180MHz        60MHz           3x          2 & 3     1 & 2     1 & 2

    200MHz        66MHz           3x          1 & 2     2 & 3     1 & 2

    200MHz        66MHz           3x          1 & 2     2 & 3     1 & 2
    (P55C)

  Note: Pins designated should be in the closed position.

