NEC OP-720-69001 User Guide - Page 19

Windows NT Installation 3-5 6 Click the Memory button. The Xircom card requires one 8K and one 4K memory block. With 0xD4000 selected under Network adapter properties the memory segments are: 000D4000-000D5FFF CEM56 BUS 0 TYPE ISA 000D6000-000D6FFF CEM56 BUS 0 TYPE ISA Any device attempting to use the same memory segments will cause the adapter to fail initialization. It is recommended to have 12K of contiguous memory starting with the first 4K block following the video drivers, which typically load in the C0000C7FFF range. This can vary from computer to computer. A memory range identified for the Xircom card is any block in the C0000-E7FFF range. On many computers, use of the range D0000-DFFFF is optimal. Not all blocks of memory are available. 7 Open the Network applet and select the Adapter tab. With the Xircom card highlighted, click Properties. Set the adapter resources to those that have been identified as available through the previous steps. The following resources have been found to work with most systems: I/O PORT 0X280 MEMORY ADDRESS 0XD4000 INTERRUPT 10 OR 11 8 Click the OK button in the adapter configuration window and then click the Close button in the Network window. Windows NT will prompt to restart. Click the 'Yes' button. Troubleshooting Modem Setup Modem difficulties can usually be traced to interrupt, memory address or communications port conflicts. A modification to the Windows NT 4.0 default communication drivers or physical damage to card or cables can also be the source of problems.