
ATEN RESEARCH, INC.

AM-486VIP / 4VIP3

Processor    AM486DX/CX486DX/80486DX/AM486DX2/CX486DX2/80486DX2/

             AM486DX4/80486DX4
Processor    25/33/50(internal)/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set     Unidentified
Max. Onboard 64MB
DRAM
Cache        128/256/512KB
BIOS         AMI/Award/MR
Dimensions   330mm x 218mm
I/O Options  32-bit VESA local bus slots (2), 32-bit PCI slots (4),

             green PC connector (location unidentified)
NPU Options  None

[Image]

                                CONNECTIONS

  Purpose                Location     Purpose                   Location

  Turbo switch              J1        Power LED & keylock          J5

  Turbo LED                 J2        Green PC connector          JP3

  Speaker                   J3        32-bit PCI slots         PC0 - PC3

  Reset switch              J4        32-bit VESA local bus    SL1 & SL2
                                      slots

                        USER CONFIGURABLE SETTINGS

              Function                   Jumper/Switch        Position

     DRAM bank configuration                JP23            pins 1 & 2
      select 1 SIMM per bank                                   closed

      DRAM bank configuration                JP23            pins 2 & 3
      select 2 SIMMs per bank                                  closed

     CMOS memory normal operation            JP2            pins 1 & 2
                                                               closed

      CMOS memory clear                       JP2            pins 2 & 3
                                                               closed

     Flash BIOS select 5VDC                 JP12            pins 1 & 2
                                                               closed

      Flash BIOS select 12VDC                JP12            pins 2 & 3
                                                               closed

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

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

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

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

     3MB        (1) 512K x     (1) 256K x        NONE           NONE
                    36             36

     3MB        (1) 256K x     (1) 256K x     (1) 256K x        NONE
                    36             36             36

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

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

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

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

     5MB       (1) 1M x 36     (1) 256K x        NONE           NONE
                                   36

     5MB        (1) 512K x     (1) 512K x     (1) 256K x        NONE
                    36             36             36

     5MB        (1) 512K x     (1) 256K x     (1) 256K x    (1) 256K x 36
                    36             36             36

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

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

     7MB       (1) 1M x 36     (1) 512K x     (1) 256K x        NONE
                                   36             36

     7MB       (1) 1M x 36     (1) 256K x     (1) 256K x    (1) 256K x 36
                                   36             36

     7MB        (1) 512K x     (1) 512K x     (1) 512K x    (1) 256K x 36
                    36             36             36

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

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

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

     8MB       (1) 1M x 36     (1) 512K x     (1) 256K x    (1) 256K x 36
                                   36             36

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

     9MB       (1) 2M x 36     (1) 256K x        NONE           NONE
                                   36

     9MB       (1) 1M x 36    (1) 1M x 36     (1) 256K x        NONE
                                                  36

     9MB       (1) 1M x 36     (1) 512K x     (1) 512K x    (1) 256K x 36
                                   36             36

     10MB      (1) 2M x 36     (1) 512K x        NONE           NONE
                                   36

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

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

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

     10MB      (1) 1M x 36     (1) 512K x     (1) 512K x    (1) 512K x 36
                                   36             36

     11MB      (1) 2M x 36     (1) 512K x     (1) 256K x        NONE
                                   36             36

     11MB      (1) 2M x 36     (1) 256K x     (1) 256K x    (1) 256K x 36
                                   36             36

     11MB      (1) 1M x 36    (1) 1M x 36     (1) 512K x    (1) 256K x 36
                                                  36

                         DRAM CONFIGURATION CONT

     Size         Bank 0        Bank 1         Bank 2          Bank 3

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

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

     12MB       (1) 2M x 36    (1) 512K x     (1) 256K x    (1) 256K x 36
                                  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

     13MB       (1) 2M x 36   (1) 1M x 36     (1) 256K x        NONE
                                                 36

     13MB       (1) 2M x 36    (1) 512K x     (1) 512K x    (1) 256K x 36
                                  36             36

     13MB       (1) 1M x 36   (1) 1M x 36    (1) 1M x 36    (1) 256K x 36

     14MB       (1) 2M x 36   (1) 1M x 36     (1) 512K x        NONE
                                                 36

     14MB       (1) 2M x 36   (1) 1M x 36     (1) 256K x    (1) 256K x 36
                                                 36

     14MB       (1) 2M x 36    (1) 512K x     (1) 512K x    (1) 512K x 36
                                  36             36

     14MB       (1) 1M x 36   (1) 1M x 36    (1) 1M x 36    (1) 512K x 36

     15MB       (1) 2M x 36   (1) 1M x 36     (1) 512K x    (1) 256K x 36
                                                 36

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

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

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

     16MB       (1) 2M 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

     17MB       (1) 4M x 36    (1) 256K x       NONE            NONE
                                  36

     17MB       (1) 2M x 36   (1) 2M x 36     (1) 256K x        NONE
                                                 36

     17MB       (1) 2M x 36   (1) 1M x 36    (1) 1M x 36    (1) 256K x 36

     18MB       (1) 4M x 36    (1) 512K x       NONE            NONE
                                  36

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

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

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

     18MB       (1) 2M x 36   (1) 1M x 36    (1) 1M x 36    (1) 512K x 36

     19MB       (1) 4M x 36    (1) 512K x     (1) 256K x        NONE
                                  36             36

     19MB       (1) 4M x 36    (1) 256K x     (1) 256K x    (1) 256K x 36
                                  36             36

     19MB       (1) 2M x 36   (1) 2M x 36     (1) 512K x    (1) 256K x 36
                                                 36

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

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

     20MB       (1) 4M x 36    (1) 512K x     (1) 256K x    (1) 256K x 36
                                  36             36

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

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

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

     21MB       (1) 4M x 36   (1) 1M x 36     (1) 256K x        NONE
                                                 36

     21MB       (1) 4M x 36    (1) 512K x     (1) 512K x    (1) 256K x 36
                                  36             36

     21MB       (1) 2M x 36   (1) 2M x 36    (1) 1M x 36    (1) 256K x 36

     22MB       (1) 4M x 36   (1) 1M x 36     (1) 512K x        NONE
                                                 36

     22MB       (1) 4M x 36   (1) 1M x 36     (1) 256K x    (1) 256K x 36
                                                 36

     22MB       (1) 4M x 36    (1) 512K x     (1) 512K x    (1) 512K x 36
                                  36             36

     22MB       (1) 2M x 36   (1) 2M x 36    (1) 1M x 36    (1) 512K x 36

     23MB       (1) 4M x 36   (1) 1M x 36     (1) 512K x    (1) 256K x 36
                                                 36

                         DRAM CONFIGURATION CONT

     Size         Bank 0        Bank 1         Bank 2          Bank 3

     24MB       (1) 4M x 36   (1) 2M x 36       NONE            NONE

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

     24MB       (1) 4M x 36   (1) 1M x 36     (1) 512K x    (1) 512K x 36
                                                 36

     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

     25MB       (1) 4M x 36   (1) 2M x 36     (1) 256K x        NONE
                                                 36

     25MB       (1) 4M x 36   (1) 1M x 36    (1) 1M x 36    (1) 256K x 36

     25MB       (1) 2M x 36   (1) 2M x 36    (1) 2M x 36    (1) 256K x 36

     26MB       (1) 4M x 36   (1) 2M x 36     (1) 512K x        NONE
                                                 36

     26MB       (1) 4M x 36   (1) 2M x 36     (1) 256K x    (1) 256K x 36
                                                 36

     26MB       (1) 4M x 36   (1) 1M x 36    (1) 1M x 36    (1) 512K x 36

     26MB       (1) 2M x 36   (1) 2M x 36    (1) 2M x 36    (1) 512K x 36

     27MB       (1) 4M x 36   (1) 2M x 36     (1) 512K x    (1) 256K x 36
                                                 36

     28MB       (1) 4M x 36   (1) 2M x 36    (1) 1M x 36        NONE

     28MB       (1) 4M x 36   (1) 2M x 36     (1) 512K x    (1) 512K x 36
                                                 36

     28MB       (1) 4M x 36   (1) 1M x 36    (1) 1M x 36     (1) 1M x 36

     28MB       (1) 2M x 36   (1) 2M x 36    (1) 2M x 36     (1) 1M x 36

     29MB       (1) 4M x 36   (1) 2M x 36    (1) 1M x 36    (1) 256K x 36

     30MB       (1) 4M x 36   (1) 2M x 36    (1) 1M x 36    (1) 512K x 36

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

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

     32MB       (1) 4M 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

     33MB       (1) 4M x 36   (1) 4M x 36     (1) 256K x        NONE
                                                 36

     33MB       (1) 4M x 36   (1) 2M x 36    (1) 2M x 36    (1) 256K x 36

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

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

     34MB       (1) 4M x 36   (1) 2M x 36    (1) 2M x 36    (1) 512K x 36

     35MB       (1) 4M x 36   (1) 4M x 36     (1) 512K x    (1) 256K x 36
                                                 36

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

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

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

     37MB       (1) 4M x 36   (1) 4M x 36    (1) 1M x 36    (1) 256K x 36

     38MB       (1) 4M x 36   (1) 4M x 36    (1) 1M x 36    (1) 512K x 36

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

     41MB       (1) 4M x 36   (1) 4M x 36    (1) 2M x 36    (1) 256K x 36

     42MB       (1) 4M x 36   (1) 4M x 36    (1) 2M x 36    (1) 512K x 36

     44MB       (1) 4M x 36   (1) 4M x 36    (1) 2M x 36     (1) 1M x 36

     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

                         DRAM CONFIGURATION CONT

     Size         Bank 0         Bank 1        Bank 2          Bank 3

     49MB       (1) 4M x 36    (1) 4M x 36   (1) 4M x 36   (1) 256K x 36

     50MB       (1) 4M x 36    (1) 4M x 36   (1) 4M x 36   (1) 512K x 36

     52MB       (1) 4M x 36    (1) 4M x 36   (1) 4M x 36    (1) 1M x 36

     56MB       (1) 4M x 36    (1) 4M x 36   (1) 4M x 36    (1) 2M x 36

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

              CACHE CONFIGURATION

      Size          Bank 0           TAG

     128KB        (4) 32K x 8     (1) 8K x 8

     256KB        (4) 64K x 8    (1) 32K x 8

     512KB        (4) 128K x 8   (1) 32K x 8

        CACHE JUMPER CONFIGURATION

        Size                 JP20

        128KB         pins 1 & 2 closed

        256KB         pins 1 & 2 closed

        512KB         pins 2 & 3 closed

                          CPU TYPE CONFIGURATION

      Type           JP11           JPV1          JPV2           JP99

    AM486DX       pins 1 & 2     pins 1 & 2     pins 1 & 2      Closed
                    closed         closed        closed

    CX486DX       pins 2 & 3     pins 1 & 2     pins 1 & 2      Closed
                    closed         closed        closed

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

    AM486DX2      pins 1 & 2     pins 1 & 2     pins 1 & 2      Closed
                    closed         closed        closed

    CX486DX2      pins 2 & 3     pins 2 & 3     pins 2 & 3      Closed
                    closed         closed        closed

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

    AM486DX4      pins 1 & 2     pins 2 & 3     pins 2 & 3       Open
                    closed         closed        closed

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

                          CPU SPEED CONFIGURATION

      Speed              JP7                JP27               JP28

       25             pins 1 & 2         pins 2 & 3           Closed
                       closed              closed

       33             pins 2 & 3         pins 1 & 2            Open
                       closed              closed

       50i            pins 1 & 2         pins 2 & 3           Closed
                       closed              closed

       66i            pins 2 & 3         pins 1 & 2            Open
                       closed              closed

       75i            pins 1 & 2         pins 2 & 3           Closed
                       closed              closed

      100i            pins 2 & 3         pins 1 & 2            Open
                       closed              closed

                           PCI BUS CONFIGURATION

     Trigger         JP38A (PCI 0)     JP38B (PCI 1)      JP38C (PCI 2)

      Level            pins 1 & 2        pins 1 & 2         pins 1 & 2
                        closed             closed             closed

       Edge            pins 2 & 3        pins 2 & 3         pins 2 & 3
                        closed             closed             closed

           IDE CARD SLOT SELECT CONFIGURATION

          Setting                      JP38D

  Select PCI 3 using IRQ14            Closed

     Select ISA or VESA                Open

                                  PCI BUS CONFIGURATION

     Setting       JP10A(IRQ9)  JP10B(IRQ10)   JP10C(IRQ11)   JP10D(IRQ12)   JP10E(IRQ15)

   Compliance      pins 1 & 2    pins 1 & 2     pins 1 & 2     pins 1 & 2     pins 1 & 2

  Non-compliance   pins 2 & 3    pins 2 & 3     pins 2 & 3     pins 2 & 3     pins 2 & 3

  Note:Pins designated should be in the closed position.

