
EVEREX SYSTEMS, INC.

RAM 3000 AT EV-135 (VER.2.0)

Card Type              Memory card
Chip Set               Unidentified
Maximum Onboard Memory 3MB RAM (Type unidentified)
I/O Options            None
Data Bus               16-bit ISA

[Image]

                            DRAM CONFIGURATION

      Size          Bank 0        Bank 1         Bank 2         Bank 3

     256KB        (8) 256K x       None           None           None
                      1

     512KB        (8) 256K x     (8) 256K x       None           None
                      1              1

     768KB        (8) 256K x     (8) 256K x    (8) 256K x        None
                      1              1             1

     1024KB       (8) 256K x     (8) 256K x    (8) 256K x    (8) 256K x 1
                      1              1             1

     1280KB       (8) 256K x     (8) 256K x    (8) 256K x    (8) 256K x 1
                      1              1             1

     1536KB       (8) 256K x     (8) 256K x    (8) 256K x    (8) 256K x 1
                      1              1             1

     1792KB       (8) 256K x     (8) 256K x    (8) 256K x    (8) 256K x 1
                      1              1             1

     2048KB       (8) 256K x     (8) 256K x    (8) 256K x    (8) 256K x 1
                      1              1             1

     2304KB       (8) 256K x     (8) 256K x    (8) 256K x    (8) 256K x 1
                      1              1             1

     2560KB       (8) 256K x     (8) 256K x    (8) 256K x    (8) 256K x 1
                      1              1             1

     2816KB       (8) 256K x     (8) 256K x    (8) 256K x    (8) 256K x 1
                      1              1             1

     3072KB       (8) 256K x     (8) 256K x    (8) 256K x    (8) 256K x 1
                      1              1             1

                            DRAM CONFIGURATION

      Size          Bank 4        Bank 5         Bank 6         Bank 7

     256KB           None          None           None           None

     512KB           None          None           None           None

     768KB           None          None           None           None

     1024KB          None          None           None           None

     1280KB       (8) 256K x       None           None           None
                      1

     1536KB       (8) 256K x     (8) 256K x       None           None
                      1              1

     1792KB       (8) 256K x     (8) 256K x    (8) 256K x        None
                      1              1             1

     2048KB       (8) 256K x     (8) 256K x    (8) 256K x    (8) 256K x 1
                      1              1             1

     2304KB       (8) 256K x     (8) 256K x    (8) 256K x    (8) 256K x 1
                      1              1             1

     2560KB       (8) 256K x     (8) 256K x    (8) 256K x    (8) 256K x 1
                      1              1             1

     2816KB       (8) 256K x     (8) 256K x    (8) 256K x    (8) 256K x 1
                      1              1             1

     3072KB       (8) 256K x     (8) 256K x    (8) 256K x    (8) 256K x 1
                      1              1             1

                            DRAM CONFIGURATION

      Size          Bank 8        Bank 9        Bank 10        Bank 11

     256KB           None          None           None           None

     512KB           None          None           None           None

     768KB           None          None           None           None

     1024KB          None          None           None           None

     1280KB          None          None           None           None

     1536KB          None          None           None           None

     1792KB          None          None           None           None

     2048KB          None          None           None           None

     2304KB       (8) 256K x       None           None           None
                      1

     2560KB       (8) 256K x     (8) 256K x       None           None
                      1              1

     2816KB       (8) 256K x     (8) 256K x    (8) 256K x        None
                      1              1             1

     3072KB       (8) 256K x     (8) 256K x    (8) 256K x    (8) 256K x 1
                      1              1             1

                         DRAM SWITCH CONFIGURATION

  Size     SW1/1   SW1/2   SW1/3   SW1/4   SW1/5    SW1/6   SW1/7   SW1/8

   0KB      On      On      On      Off     On       On      On      On

  128KB    Off      On      On      Off     On       On      On      On

  256KB     On      Off     On      Off     On       On      On      On

  384KB    Off      Off     On      Off     On       On      On      On

  512KB     On      On      Off     Off     On       On      On      On

  640KB    Off      On      Off     Off     On       On      On      On

  768KB     On      Off     Off     Off     On       On      On      On

  896KB    Off      Off     Off     Off     On       On      On      On

  1024KB    On      On      On      On      Off      On      On      On

  1152KB   Off      On      On      On      Off      On      On      On

  1280KB    On      Off     On      On      Off      On      On      On

  1408KB   Off      Off     On      On      Off      On      On      On

  1536KB    On      On      Off     On      Off      On      On      On

  1664KB   Off      On      Off     On      Off      On      On      On

  1792KB    On      Off     Off     On      Off      On      On      On

  1920KB   Off      Off     Off     On      Off      On      On      On

  2048KB    On      On      On      Off     Off      On      On      On

  2176KB   Off      On      On      Off     Off      On      On      On

  2304KB    On      Off     On      Off     Off      On      On      On

  2432KB   Off      Off     On      Off     Off      On      On      On

  2560KB    On      On      Off     Off     Off      On      On      On

  2688KB   Off      On      Off     Off     Off      On      On      On

  2816KB    On      Off     Off     Off     Off      On      On      On

  2944KB   Off      Off     Off     Off     Off      On      On      On

  3072KB    On      On      On      On      On      Off      On      On

                     BASE MEMORY JUMPER CONFIGURATION

          Size                     JP2                      JP3

          None              Pins 3 & 4, 5 & 6        Pins 3 & 4 closed
                                 closed

     256KB - 512KB          Pins 3 & 4, 7 & 8        Pins 3 & 4 closed
                                 closed

     256KB - 640KB          Pins 1 & 2, 5 & 6        Pins 1 & 2 closed
                                 closed

     512KB - 640KB          Pins 1 & 2, 5 & 6        Pins 1 & 2 closed
                                 closed

                     BASE MEMORY SWITCH CONFIGURATION

      Size          Chips          SW2/6         SW2/7          SW2/8

      None           N/A            Off           Off            Off

     256KB -         64KB           Off            On             On
     512KB

     256KB -        256KB           N/A           N/A            N/A
     512KB

     256KB -         64KB           On             On             On
     640KB

     256KB -        256KB           On             On            Off
     640KB

     512KB -         64KB           On            Off             On
     640KB

     512KB -        256KB           On            Off            Off
     640KB

                     EXTENDED MEMORY ADDRESS SETTINGS

  Address    Chips      SW2/1      SW2/2     SW2/3      SW2/4     SW2/5

   128KB       64        Off        On         On        On         On

   256KB       64         On        Off        On        On         On

   384KB       64        Off        Off        On        On         On

   512KB       64         On        On        Off        On         On

   512KB      256         On        On        Off        On         On

   640KB       64        Off        On        Off        On         On

   768KB       64         On        Off       Off        On         On

    1MB       256         On        On         On        Off        On

   1.5MB      256         On        On        Off        Off        On

    2MB       256         On        On         On        On        Off

   2.5MB      256         On        On        Off        On        Off

    3MB       256         On        On         On        Off       Off

             MISCELLANEOUS TECHNICAL NOTES

            Note: The purpose of W16 is unidentified.

