TANDON CORPORATION

2MB MEMORY OPTION BOARD

Card Type          Memory card
Chipset/Controller N/A
I/O Options        N/A
Maximum DRAM       2MB

[Image]

                            DRAM SIZE SELECTION

      Size          Bank 0        Bank 1         Bank 2         Bank 3

     512KB        (18) 256K x      NONE           NONE           NONE
                      1

     1024KB       (18) 256K x   (18) 256K x       NONE           NONE
                      1              1

     1536KB       (18) 256K x   (18) 256K x    (18) 256K x       NONE
                      1              1             1

     2048KB       (18) 256K x   (18) 256K x    (18) 256K x    (18) 256K x
                      1              1             1              1

                          DRAM ADDRESS SELECTION

   System RAM        Address       SW1/1   SW1/2    SW1/3   SW1/4   SW1/5

   512-640KB      100000-2FFFFFh    Off     Off     Off      On      Off

     1024KB       180000-37FFFFh    Off     Off     Off      On      On

  2560-2688KB     300000-4FFFFFh    Off     Off      On      On      Off

     3072KB       380000-57FFFFh    Off     Off      On      On      On

  4608-4736KB     500000-6FFFFFh    Off     On      Off      On      Off

     5120KB       580000-77FFFFh    Off     On      Off      On      On

  6656-6784KB     700000-8FFFFFh    Off     On       On      On      Off

     7168KB       780000-97FFFFh    Off     On       On      On      On

  8704-8832KB     900000-AFFFFFh    On      Off     Off      On      Off

     9216KB       980000-B7FFFFh    On      Off     Off      On      On

  10752-10880KB   B00000-CFFFFFh    On      Off      On      On      Off

    11264KB       B80000-D7FFFFh    On      On       On      On      On

  12800-12928KB   D00000-EFFFFFh    On      On      Off      On      Off

    13312KB       D80000-F7FFFFh    On      On      Off      On      On

  14848-14976KB   F00000-FDFFFFh    On      On       On      On      Off

    15360KB       F80000-FDFFFFh    On      On       On      On      On