TWINHEAD INTERNATIONAL CORPORATION

CT-6280

Card Type              Memory card
Chip Set               Unidentified
Maximum Onboard Memory 640KB
Data Bus               8-bit ISA

[Image]

                        USER CONFIGURABLE SETTINGS

                 Function                    Label         Position

  »   Factory configured - do not alter      SW1/7       Unidentified

      Parity check enabled                   SW1/8            On

      Parity check disabled                  SW1/8            Off

                            DRAM CONFIGURATION

      Size            Bank 1              Bank 2             Bank 3

      0KB              None                None               None

      64KB             64KB                None               None

     128KB             64KB                64KB               None

     192KB             64KB                64KB               64KB

     256KB             256KB               None               None

     320KB             256KB               64KB               None

     384KB             256KB               64KB               64KB

     448KB             256KB              256KB               None

     512KB             256KB              256KB               None

     576KB             256KB              256KB               64KB

     640KB             256KB              256KB               256KB

  Note: It is recommended that 4164 or 4125 RAM chips of 150ns or faster
  be used.

          DRAM JUMPER CONFIGURATION

  Size     SW1/3    SW1/4    SW1/5    SW1/6

   0KB      Off      Off      Off      Off

  64KB      On       Off      Off      Off

  128KB     Off      On       Off      Off

  192KB     On       On       Off      Off

  256KB     Off      Off      On       Off

  320KB     On       Off      On       Off

  384KB     Off      On       On       Off

  448KB     On       On       On       Off

  512KB     Off      Off      Off      On

  576KB     On       Off      Off      On

  640KB     Off      On       Off      On

             STARTING ADDRESS SELECTION

     Address            SW1/1             SW1/2

   00000h (0KB)          Off               Off

  10000h (64KB)          On                Off

  20000h (128KB)         Off               On

  40000h (256KB)         On                On