
UNIDENTIFIED

VEGA VS3486-3VL

Processor        80386DX/80486SX/80486DX/80486DX2
Processor Speed  25/33/40/50(internal)/50/66(internal)MHz
Chip Set         Symphony
Max. Onboard DRAM32MB
SRAM Cache       64/256/1024KB
BIOS             AMI
Dimensions       330mm x 218mm
I/O Options      32-bit Vesa local bus slots (3)
NPU Options      None

[Image]

                                CONNECTIONS

  Purpose                 Location      Purpose                Location

  External battery           BAT        32-bit Vesa local     S1, S2 & S3
                                        bus slots

  Power LED & keylock       KEYL        Turbo switch             SPD

  Turbo LED                  LED        Speaker                  SPK

  Reset switch               RST

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Batterly select internal                 BT1            Closed

      Battery select external                  BT1             Open

     CMOS memory normal operation            CMOS           pins 3 & 4
                                                              closed

      CMOS memory clear                       CMOS           pins 1 & 2
                                                              closed

      BIOS type select normal (27C512)         EPR           pins 1 & 2
                                                              closed

      BIOS type select flash (28F001BX)        EPR           pins 2 & 3
                                                              closed

     Factory configured - do not alter       JP19            Closed

     Factory configured - do not alter       JP30            Closed

     Factory configured - do not alter       JP31             Open

              DRAM CONFIGURATION

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

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

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

      16MB        (4) 4M x 9         NONE

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

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

              SRAM CONFIGURATION

      Size           Cache           TAG

      64KB        (8) 8K x 8      (1) 8K x 8

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

     1024KB       (8) 128K x 8   (1) 128K x 8

                         SRAM JUMPER CONFIGURATION

     Size         JP10        JP11        JP12        JP15        JP16

     64KB       pins 1 &    pins 1 &    pins 1 &    pins 1 &     pins 1 &
                   2           2           2           2            2

    256KB       pins 2 &    pins 2 &    pins 2 &    pins 1 &     pins 1 &
                   3           3           3           2            2

    1024KB      pins 2 &    pins 2 &    pins 2 &    pins 2 &     pins 2 &
                   3           3           3           3            3

  Note:Pins designated should be in the closed postion.

                          CPU TYPE CONFIGURATION

    Jumper       80386DX        80486SX        80486DX        80486DX2

     JP6           Open          Closed        Closed          Closed

     JP7        pins 1 & 2     pins 2 & 3     pins 2 & 3      pins 2 & 3
                  closed         closed        closed          closed

     JP8        pins 2 & 3     pins 1 & 2     pins 1 & 2      pins 1 & 2
                  closed         closed        closed          closed

     JP9        pins 1 & 2     pins 2 & 3     pins 2 & 3      pins 2 & 3
                  closed         closed        closed          closed

     JP13       pins 1 & 2     pins 2 & 3     pins 2 & 3      pins 2 & 3
                  closed         closed        closed          closed

     JP14       pins 2 & 3     pins 1 & 2     pins 1 & 2      pins 1 & 2
                  closed         closed        closed          closed

     JP17       pins 1 & 2     pins 2 & 3     pins 2 & 3      pins 2 & 3
                   open          closed        closed          closed

     JP20         Closed          Open          Open            Open

     JP21          Open          Closed        Closed          Closed

     JP24         Closed          Open          Open            Open

     JP34       pins 1 & 2     pins 2 & 3     pins 1 & 2      pins 1 & 2
                  closed         closed        closed          closed

     JP35         Closed          Open         Closed          Closed

     JP36         Closed          Open         Closed          Closed

                          CPU SPEED CONFIGURATION

  Speed     JP4     JP5      JP18    JP22A   JP22   JP23   JP32     JP33

  25/50i   Open    Closed   Closed   2 & 3    1 &   2 &    Open     Open
   MHz                                        2      3

  33/66i   Closed   Open    Closed   2 & 3    1 &   2 &    Open     Open
   MHz                                        2      3

  40MHz    Open     Open     Open    2 & 3    1 &   2 &    Closed   Open
                                              2      3

  50MHz    Open    Closed    Open    1 & 2    2 &   1 &    Closed   Closed
                                              3      2

  Note:Pins designated should be in the closed postion.

