
ELITEGROUP COMPUTER SYSTEMS, INC.

UP8810/8810A VIO (VER. 1.1)

Processor  CX486M6/SL80486SX/80486SX/SL80486SX2/CX486DX/AM486DX/
           SL80486DX/80486DX/CX486DX2/AM486DX2/U5S/U5DS/SL80486DX2/
           80486DX2/80486DX4/Pentium Overdrive
Processor  25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set   UMC
Max.       128MB
Onboard
DRAM
Cache      128/256/512KB
BIOS       Phoenix
Dimensions 330mm x 218mm
I/O        Floppy drive interface, IDE interfaces (2), green PC connector,
Options    parallel port, PS/2 mouse port, serial ports (2), VGA feature
           connector, VGA port, riser slot
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                 Location    Purpose                   Location

  PS/2 mouse port            J3       IDE interface                J14
                                      (secondary)

  Serial port 2              J4       IDE interface LED            J15

  Serial port 1              J5       Power LED & keylock          J16

  Parallel port              J6       Speaker                      J17

  VGA port                   J7       Reset switch                 J18

  VGA feature connector     J10       Turbo switch                 J19

  Green PC connector        J11       Turbo LED                    J20

  Floppy drive              J12       Riser Card                   SL1
  interface

  IDE interface             J13
  (primary)

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper           Position

     On board I/O enabled                    JP2           pins 1 & 2
                                                              closed

      On board I/O disabled                   JP2           pins 2 & 3
                                                              closed

     ECP mode disabled                      JP17              Open

      ECP mode enabled                       JP17             Closed

     IDE interface enabled                  JP25              Open

      IDE interface disabled                 JP25             Closed

     Secondary INT source select from       JP26           pins 2 & 3
      chip                                                    closed

      Secondary INT source select from       JP26           pins 1 & 2
      drive                                                   closed

     Primary INT source select from         JP27           pins 2 & 3
      chip                                                    closed

      Primary INT source select from         JP27           pins 1 & 2
      drive                                                   closed

     VGA GD543X chip enabled                JP50           pins 1 & 2
                                                              closed

      VGA GD543X chip disabled               JP50           pins 2 & 3
                                                              closed

  Note: The location of JP17 is unidentified.

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     2MB        (1) 256K x     (1) 256K x        NONE           NONE
                    36             36

     2MB        (1) 512K x        NONE           NONE           NONE
                    36

     4MB        (1) 256K x     (1) 256K x     (1) 256K x    (1) 256K x 36
                    36             36             36

     4MB        (1) 256K x     (1) 256K x     (1) 512K x        NONE
                    36             36             36

     4MB        (1) 512K x        NONE        (1) 512K x        NONE
                    36                            36

     4MB        (1) 512K x     (1) 512K x        NONE           NONE
                    36             36

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

     6MB        (1) 256K x     (1) 256K x     (1) 512K x    (1) 512K x 36
                    36             36             36

     6MB        (1) 256K x     (1) 256K x    (1) 1M x 36        NONE
                    36             36

     6MB        (1) 512K x     (1) 512K x     (1) 512K x        NONE
                    36             36             36

     6MB        (1) 512K x     (1) 512K x     (1) 256K x    (1) 256K x 36
                    36             36             36

     8MB        (1) 512K x     (1) 512K x     (1) 512K x    (1) 512K x 36
                    36             36             36

     8MB        (1) 512K x     (1) 512K x    (1) 1M x 36        NONE
                    36             36

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

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

     8MB       (1) 2M x 36        NONE           NONE           NONE

                        DRAM CONFIGURATION (CONT)

     Size         Bank 0         Bank 1         Bank 2         Bank 3

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

     10MB       (1) 256K x     (1) 256K x    (1) 2M x 36        NONE
                    36             36

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

     10MB      (1) 1M x 36    (1) 1M x 36     (1) 512K x        NONE
                                                  36

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

     12MB       (1) 512K x     (1) 512K x    (1) 2M x 36        NONE
                    36             36

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

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

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

     16MB      (1) 1M x 36    (1) 1M x 36    (1) 2M x 36        NONE

     16MB      (1) 2M x 36        NONE       (1) 2M x 36        NONE

     16MB      (1) 2M x 36    (1) 2M x 36        NONE           NONE

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

     18MB       (1) 256K x     (1) 256K x    (1) 2M x 36     (1) 2M x 36
                    36             36

     18MB       (1) 256K x     (1) 256K x    (1) 4M x 36        NONE
                    36             36

     18MB      (1) 2M x 36    (1) 2M x 36     (1) 256K x    (1) 256K x 36
                                                  36

     18MB      (1) 2M x 36    (1) 2M x 36     (1) 512K x        NONE
                                                  36

     20MB       (1) 512K x     (1) 512K x    (1) 2M x 36     (1) 2M x 36
                    36             36

     20MB       (1) 512K x     (1) 512K x    (1) 4M x 36        NONE
                    36             36

     20MB      (1) 2M x 36    (1) 2M x 36     (1) 512K x    (1) 512K x 36
                                                  36

     20MB      (1) 2M x 36    (1) 2M x 36    (1) 1M x 36        NONE

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

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

     24MB      (1) 2M x 36    (1) 2M x 36    (1) 2M x 36        NONE

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

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

     32MB      (1) 2M x 36    (1) 2M x 36    (1) 4M x 36        NONE

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

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

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

     34MB       (1) 256K x     (1) 256K x    (1) 4M x 36     (1) 4M x 36
                    36             36

     34MB       (1) 256K x     (1) 256K x    (1) 8M x 36        NONE
                    36             36

     34MB      (1) 4M x 36    (1) 4M x 36     (1) 256K x    (1) 256K x 36
                                                  36

     34MB      (1) 4M x 36    (1) 4M x 36     (1) 512K x        NONE
                                                  36

     36MB       (1) 512K x     (1) 512K x    (1) 4M x 36     (1) 4M x 36
                    36             36

     36MB       (1) 512K x     (1) 512K x    (1) 8M x 36        NONE
                    36             36

     36MB      (1) 4M x 36    (1) 4M x 36     (1) 512K x    (1) 512K x 36
                                                  36

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

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

     40MB      (1) 4M x 36    (1) 4M x 36    (1) 2M x 36        NONE

     48MB      (1) 2M x 36    (1) 2M x 36    (1) 4M x 36     (1) 4M x 36

     48MB      (1) 2M x 36    (1) 2M x 36    (1) 8M x 36        NONE

                        DRAM CONFIGURATION (CONT)

     Size          Bank 0        Bank 1         Bank 2         Bank 3

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

     48MB       (1) 4M x 36    (1) 4M x 36    (1) 2M x 36    (1) 2M x 36

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

     64MB       (1) 4M x 36    (1) 4M x 36    (1) 8M x 36       NONE

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

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

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

     66MB        (1) 256K x     (1) 256K x    (1) 8M x 36    (1) 8M x 36
                     36            36

     66MB        (1) 512K x       NONE        (1) 8M x 36    (1) 8M x 36
                     36

     66MB       (1) 8M x 36    (1) 8M x 36     (1) 256K x   (1) 256K x 36
                                                  36

     66MB       (1) 8M x 36    (1) 8M x 36     (1) 512K x       NONE
                                                  36

     68MB       (1) 8M x 36    (1) 8M x 36     (1) 512K x   (1) 512K x 36
                                                  36

     68MB       (1) 8M x 36    (1) 8M x 36    (1) 1M x 36       NONE

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

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

     72MB       (1) 8M x 36    (1) 8M x 36    (1) 2M x 36       NONE

     80MB       (1) 2M x 36    (1) 2M x 36    (1) 8M x 36    (1) 8M x 36

     80MB       (1) 8M x 36    (1) 8M x 36    (1) 2M x 36    (1) 2M x 36

     80MB       (1) 8M x 36    (1) 8M x 36    (1) 4M x 36       NONE

     96MB       (1) 4M x 36    (1) 4M x 36    (1) 8M x 36    (1) 8M x 36

     96MB       (1) 8M x 36    (1) 8M x 36    (1) 4M x 36    (1) 4M x 36

     96MB       (1) 8M x 36    (1) 8M x 36    (1) 8M x 36       NONE

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

                      CACHE CONFIGURATION

      Size          Bank 0          Bank 1           TAG

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

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

     512KB        (4) 64K x 8     (4) 64K x 8    (1) 32K x 8

     512KB       (4) 128K x 8        NONE        (1) 32K x 8

                     CACHE JUMPER CONFIGURATION

   Size     JP41      JP42     JP43      JP46      JP47      JP48

  128KB     Open     2 & 3     1 & 2     Open      Open      Open

  256KB     Open     1 & 2     2 & 3     Closed    Open      Open

  512KB     Open     1 & 2     2 & 3     Closed   Closed     Open

  512KB     1 & 2    2 & 3     2 & 3     Closed   Closed     Open

  Note: Pins designated should be in the closed position.

                          CPU TYPE CONFIGURATION

       Type            JP19           JP22          JP23          JP31

     CX486M6        pins 1 & 2     pins 2 & 3     pins 2 & 3      Open
                      closed         closed        closed

    SL80486SX       pins 1 & 2     pins 2 & 3       Open          Open
                      closed         closed

     80486SX           Open        pins 1 & 2       Open          Open
                                     closed

    SL80486SX2      pins 1 & 2     pins 2 & 3       Open          Open
                      closed         closed

     CX486DX        pins 1 & 2     pins 2 & 3     pins 2 & 3      Open
                      closed         closed        closed

     AM486DX           Open        pins 1 & 2       Open          Open
                                     closed

    SL80486DX       pins 1 & 2     pins 2 & 3       Open          Open
                      closed         closed

     80486DX           Open        pins 1 & 2       Open          Open
                                     closed

     CX486DX2       pins 1 & 2     pins 2 & 3     pins 2 & 3      Open
                      closed         closed        closed

     AM486DX2          Open        pins 1 & 2       Open          Open
                                     closed

       U5S          pins 2 & 3     pins 1 & 2       Open          Open
                      closed         closed

       U5DS         pins 2 & 3     pins 1 & 2       Open          Open
                      closed         closed

    SL80486DX2      pins 1 & 2     pins 2 & 3       Open          Open
                      closed         closed

     80486DX2          Open        pins 1 & 2       Open          Open
                                     closed

  80486DX2 (WB)     pins 1 & 2     pins 2 & 3       Open          Open
                      closed         closed

     80486DX4       pins 1 & 2     pins 2 & 3       Open          Open
                      closed         closed

       P24T         pins 1 & 2     pins 2 & 3     pins 1 & 2      Open
                      closed         closed        closed

                      CPU TYPE CONFIGURATION (CONT)

      Type            JP33          JP34          JP36           JP37

     CX486M6       1 & 2, 3 &       2 & 3         2 & 3         1 & 2
                       4

    SL80486SX      2 & 3, 4 &       1 & 2         2 & 3          Open
                       5

     80486SX          Open          Open          2 & 3          Open

   SL80486SX2      2 & 3, 4 &       1 & 2         2 & 3          Open
                       5

     CX486DX       1 & 2, 3 &       2 & 3       1 & 2, 3 &      2 & 3
                       4                            4

     AM486DX          Open          Open        1 & 2, 3 &       Open
                                                    4

    SL80486DX      2 & 3, 4 &       1 & 2       1 & 2, 3 &       Open
                       5                            4

     80486DX          Open          Open        1 & 2, 3 &       Open
                                                    4

    CX486DX2       1 & 2, 3 &       2 & 3       1 & 2, 3 &      2 & 3
                       4                            4

    AM486DX2          Open          Open        1 & 2, 3 &       Open
                                                    4

       U5S            Open          Open          2 & 3         3 & 4

      U5DS            Open          Open        1 & 2, 3 &      3 & 4
                                                    4

   SL80486DX2      2 & 3, 4 &       1 & 2       1 & 2, 3 &       Open
                       5                            4

    80486DX2          Open          Open        1 & 2, 3 &       Open
                                                    4

  80486DX2 (WB)    2 & 3, 4 &     1 & 2, 3 &    1 & 2, 3 &       Open
                       5              4             4

    80486DX4       2 & 3, 4 &       1 & 2       1 & 2, 3 &       Open
                       5                            4

      P24T         2 & 3, 4 &       1 & 2       1 & 2, 3 &      2 & 3
                       5                            4

  Note: Pins designated should be in the closed position.

                      CPU TYPE CONFIGURATION (CONT)

      Type            JP38       JP39       JP40       JP44       JP45

     CX486M6          Open       Open       2 & 3      2 & 3      1 & 2

    SL80486SX         Open       Open       Open       1 & 2      1 & 2

     80486SX          Open       Open       Open       1 & 2      1 & 2

   SL80486SX2         Open       Open       Open       1 & 2      1 & 2

     CX486DX          Open       1 & 2      2 & 3      2 & 3      1 & 2

     AM486DX          Open       1 & 2      Open       1 & 2      1 & 2

    SL80486DX         Open       1 & 2      Open       1 & 2      1 & 2

     80486DX          Open       1 & 2      Open       1 & 2      1 & 2

    CX486DX2          Open       1 & 2      2 & 3      2 & 3      1 & 2

    AM486DX2          Open       1 & 2      Open       1 & 2      1 & 2

       U5S            Open      1 & 2, 3    Open       1 & 2      2 & 3
                                  & 4

      U5DS            Open      1 & 2, 3    Open       1 & 2      2 & 3
                                  & 4

   SL80486DX2         Open       1 & 2      Open       1 & 2      1 & 2

    80486DX2          Open       1 & 2      Open       1 & 2      1 & 2

  80486DX2 (WB)      Closed      1 & 2      Open       1 & 2      1 & 2

    80486DX4          Open       1 & 2      Open       1 & 2      1 & 2

      P24T            Open       2 & 3      Open       1 & 2      1 & 2

  Note: Pins designated should be in the closed position.

              CPU TYPE CONFIGURATION (PENTIUM OVERDRIVE ONLY)

           Type                      JP28                   JP29

   Pentium Overdrive not             Open                   Open
         installed

     Pentium Overdrive              Closed                 Closed
         installed

                       CPU SPEED CONFIGURATION

               Speed                              JP6

               25MHz                       pins 1 & 2 closed

               33MHz                pins 1 & 2, 3 & 4, 5 & 6 closed

               40MHz                    pins 1 & 2, 3 & 4 closed

              50iMHz                       pins 1 & 2 closed

               50MHz                       pins 5 & 6 closed

              66iMHz                pins 1 & 2, 3 & 4, 5 & 6 closed

              75iMHz                       pins 1 & 2 closed

              100iMHz               pins 1 & 2, 3 & 4, 5 & 6 closed

  CPU SPEED CONFIGURATION (80486DX4 ONLY)

        Speed                  JP35

          2x                  Closed

          3x                   Open

                  CPU VOLTAGE CONFIGURATION

       Voltage               JP24                 JP32

        3.3v           pins 2 & 3 closed   pins 3 & 4 closed

        3.45v          pins 1 & 2 closed   pins 3 & 4 closed

         5v                  Open          pins 1 & 2 closed

                      DRQ CONFIGURATION

      DRQ/DACK               JP8                  JP18

     DRQ1/DACK1        pins 1 & 2 closed   pins 2 & 3 closed

     DRQ3/DACK3        pins 2 & 3 closed   pins 1 & 2 closed

        BIOS VOLTAGE CONFIGURATION

       Voltage               JP11

        EPROM                Open

         5v           pins 1 & 2 closed

         12v          pins 2 & 3 closed

              VIDEO MEMORY CONFIGURATION

  Note: The size of the VRAM chips is unidentified.

