
DIAMOND MULTIMEDIA SYSTEMS, INC.

FASTBUS VLB

Processor       80386DX/80486SX/80487SX/80486DX/80486DX2
Processor Speed 25/33/40/50 (internal)/50/66(internal) MHz
Chip Set        C & T
Max. onboard    128MB
DRAM
Cache           64/256KB
BIOS            C & T
Dimensions      330mm x 218mm
I/O Options     32-bit VESA local bus slots (2), floppy drive interface,
                IDE interface, parallel port, serial ports (2)
NPU Options     4167

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  External battery           BAT1      Reset switch               CN7

  Parallel port              CN1       Speaker                    CN8

  Serial port (COM1)         CN2       Turbo switch               CN9

  Serial port (COM2)         CN3       IDE interface LED          CN10

  IDE interface              CN4       Power LED & keylock        CN11

  Floppy drive               CN5       32-bit VESA local bus       S1
  interface                            slot

  Turbo LED                  CN6       32-bit VESA local bus       S2
                                       slot

                        USER CONFIGURABLE SETTINGS

              Function                  Jumper/Switch         Position

     Onboard I/O controller                 J23               Closed
      enabled

      Onboard I/O controller                 J23                Open
      disabled

     CMOS memory normal operation           JCOM            pins 2 & 3
                                                               closed

      CMOS memory clear                      JCOM            pins 1 & 2
                                                               closed

     Factory configured - do not           SW1/7               Off
      alter

     Factory configured - do not           SW1/8               Off
      alter

                            DRAM CONFIGURATION

     Size          Bank 0         Bank 1        Bank 2         Bank 3

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

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

     32MB       (1) 8M x 36        NONE          NONE           NONE

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

     64MB       (1) 8M x 36    (1) 8M x 36       NONE           NONE

     128MB      (1) 8M x 36    (1) 8M x 36    (1) 8M x 36    (1) 8M x 36

                        CACHE CONFIGURATION

      Size              S3             JTAG1            JTAG2

      64KB         64KB module       Installed      Not installed

      128KB        256KB module    Not installed      Installed

           VESA CPU TYPE (ID0 &AMP; ID1) CONFIGURATION

       CPU Type         SW1/switch 1 (ID0)      SW1/2 (ID1)

        80386                  On                   Off

        80486                  Off                   On

       VESA WAIT STATE (ID2) CONFIGURATION

   Wait states      CPU speed        SW1/3(ID2)

  0 wait states       <=33MHz           Off

  1 wait state        >33MHz             On

  VESA BUS SPEED (ID3) CONFIGURATION

     CPU speed         SW1/4 (ID3)

      <=33MHz              Off

       >33MHz               On

                VESA ID4 CONFIGURATION

          Setting                 SW1/5 (ID4)

  Reserved for future use              On

                          CPU TYPE CONFIGURATION

    TYPE        JCALA      JNMI      JFERR     JIGN      JCLK     JCLK2

   AMD386       pins 1     Open      pins 2    pins 2   pins 2   pins 2 &
                 & 2                  & 3       & 3      & 3        3

   80486SX      pins 2     Open      pins 2    pins 2   pins 1   pins 1 &
                 & 3                  & 3       & 3      & 2        2

   80487SX      pins 2    Closed     pins 1    pins 1   pins 1   pins 1 &
                 & 3                  & 2       & 2      & 2        2

   80486DX      pins 2    Closed     pins 2    pins 1   pins 1   pins 1 &
                 & 3                  & 3       & 2      & 2        2

  80486DX2      pins 2    Closed     pins 2    pins 1   pins 1   pins 1 &
                 & 3                  & 3       & 2      & 2        2

  Note:AMD386 is a CPU module available from the manufacturer

      CPU SPEED CONFIGURATION

    TYPE       Speed      SW2/6

   AMD386      40MHz        On

  80486SX      25MHz        On

  80486SX      33MHz       Off

  80487SX      25MHz        On

  80487SX      33MHz       Off

  80486DX      25MHz        On

  80486DX      33MHz       Off

  80486DX      50MHz       Off

  80486DX2    50i MHz       On

  80486DX2    66i MHz      Off

