### Using Digi's Memory Map Utility for ISA Adapters

Use Digi's Memory Map utility to help identify a block of available memory address space on your system if you are having resource conflicts on the ISA bus of your computer.

The utility is a DOS program, and may be downloaded from Digi's Technical Support web site. For information about downloading the diagnostics package and creating diskettes, see:

Creating a Diagnostics Diskette

#### Procedure

To run DIGIMMAP.EXE, follow this procedure:

1. Boot your system normally, without the Digi adapter installed. This should cause all other adapters in your system to be initialized.
2. Place a bootable DOS formatted diskette in your boot drive. This diskette must have no TSRs or memory managers present, or DIGIMMAP may give erroneous results (hint: rename CONFIG.SYS and AUTOEXEC.BAT, if present, so they are not executed during bootup).
3. Press the CTRL, ALT, and DELETE keys simultaneously to reboot your machine. DO NOT press the RESET button or cycle power to reboot; resetting the machine may turn off any adapters that were activated in Step 1.
4. Now place the diskette containing the diagnostic software in the diskette drive. Access the correct version of the program by choosing the appropriate subdirectory:

   (Xr, Xem, EPC/X adapters) | `A:\RISC\DIGIMMAP`
   (Xe, C/X adapters) | `A:\CISC\DIGIMMAP`

5. After reading the initial screen, press E to execute the utility.
6. The center column shows a list of 32K starting addresses which appear to be available. Write down several of these addresses (some devices can fool the memory mapper by turning their memory off, making the area appear to be available). A good order for trying addresses is:
   1. Addresses beginning with "D" (D0000h & D8000h)
   2. Addresses beginning with "C" (C0000h & C8000h)
   3. Addresses beginning with "E" (E0000h & E8000h)