RAVEN SERVICE WORKS

DPC-4434

Processor       80486SX/80487SX/80486DX/ODP486SX/80486DX2
Processor Speed 20/25/33/50(internal)/50/66(internal) MHz
Chip Set        Unknown
Max. Onboard    32MB
DRAM
Cache           None
BIOS            Unknown
Dimensions      330mm x 218mm
I/O Options     Floppy drive interface, IDE interface, multi-function
                connector (power LED, turbo SW1itch, keylock, and reset),
                parallel port, PS/2 keyboard connector, PS/2 mouse port,
                serial port,VGA feature connector, VGA port
NPU Options     None

[Image]

                                CONNECTIONS

  Purpose                    Location    Purpose                Location

  Multi-function connector      C1       PS/2 mouse port           MC

  Speaker                       C2       Parallel port             PC

  IDE interface LED             C3       Riser Card                S1

  Floppy drive interface        FDC      Serial port               SC

  IDE interface                 IDE      VGA port                  VC

  PS/2 keyboard port            KC       VGA feature               VGA
                                         connector

                        USER CONFIGURABLE SETTINGS

              Function                  Jumper/Switch         Position

  »   PS/2 mouse port enabled                JP5             pins 1 & 2
      (IRQ12)                                                  closed

      PS/2 mouse port disabled               JP5             pins 2 & 3
                                                               closed

  »   Monitor type select color             SW1/2                On

      Monitor type select                   SW1/2               Off
      monochrome

              DRAM CONFIGURAPTION

      Size          Bank 0          Bank 1

      1MB         (4) 256K x 9       NONE

      2MB         (4) 256K x 9   (4) 256K x 9

      4MB         (4) 1M x 9         NONE

      5MB         (4) 1M x 9     (4) 256K x 9

      8MB         (4) 1M x 9      (4) 1M x 9

      16MB        (4) 4M x 9         NONE

      17MB        (4) 4M x 9     (4) 256K x 9

      20MB        (4) 4M x 9      (4) 1M x 9

      32MB        (4) 4M x 9      (4) 4M x 9

                        ONBOARD VIDEO CONFIGURATION

      VRAM size         Bank 0        Bank 1       SW1/1         SW1/3

  »       512KB          512KB         None          On           On

          1024KB         512KB      (4) 256K x       On           Off
                                        4

         Disabled         N/A          N/A          Off           N/A

                    800 X 600 VIDEO MODE CONFIGURATION

    Refresh Rate             Mode              SW1/6           SW1/7

  »       56Hz            Interlaced            Off             Off

          60Hz            Interlaced            On              Off

          70Hz            Interlaced            Off              On

          72Hz            Interlaced            On               On

                    1024 X 768 VIDEO MODE CONFIGURATION

   Refresh Rate              Mode               SW1/4           SW1/5

  »       56Hz            Interlaced             Off             Off

          60Hz          Non-interlaced            On             Off

          70Hz          Non-interlaced           Off             On

          72Hz          Non-interlaced            On             On

                           RAMDAC CONFIGURATION

              RAMDAC type                    JP1               JP2

    BT478, BT476, KDA0478, KDA0476          Closed          pins 2 & 3
                                                              closed

      SC11483, SC11487 (Hi-Color)           Closed          pins 1 & 2
                                                              closed

                IMS178                       Open           pins 1 & 2
                                                              closed

                             CPU CONFIGURATION

          CPU               JP3          JP4          JP8         JP9

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

   80487SX/ODP486SX      pins 2 & 3   pins 2 & 3   pins 1 & 2    Closed
                          closed       closed       closed

      80486DX/DX2        pins 1 & 2   pins 1 & 2   pins 1 & 2    Closed
                          closed       closed       closed