TITLE: Resolving I/O and IRQ Conflicts DOCUMENT ID: TID1200452 DOCUMENT REVISION: 1 DATE: 31MAR95 ALERT STATUS: Yellow README FOR: NA NOVELL PRODUCT and VERSION: NETWARE LITE V1.1 PERSONAL NETWARE V1.0 ABSTRACT: NA --------------------------------------------------------------------- DISCLAIMER: THE ORIGIN OF THIS INFORMATION MAY BE INTERNAL OR EXTERNAL TO NOVELL. NOVELL MAKES EVERY EFFORT WITHIN ITS MEAN TO VERIFY THIS INFORMATION. HOWEVER, THE INFORMATION PROVIDED IN THIS DOCUMENT IS FOR YOUR INFORMATION ONLY. NOVELL MAKES NO EXPLICIT OR IMPLIED CLAIMS TO THE VALIDITY OF THIS INFORMATION. --------------------------------------------------------------------- ISSUE: RESOLVING I/O AND IRQ CONFLICTS I/O CONFLICTS The Ethernet, ARCnet, or other network board will need to use a unique I/O address. The following table shows some possible conflicts. Column one shows the range from 200 to 3E0 (hex). Column two shows some possible conflicting devices. Select an I/O address that best fits your configuration; however, be aware that this table is generic. If problems persist, consult the documentation of your specific system. It is also possible to get a listing of your I/O addresses with a computer utility program. ------------------------------------------------------------------- | I/O Address | Potential Conflicting Devices | |--------------|----------------------------------------------------| | 200 | Game controller /Joystick (200-20F) | |--------------|----------------------------------------------------| | 220 | Novell Network Keycard | |--------------|----------------------------------------------------| | 240 | | |--------------|----------------------------------------------------| | 260 | LPT2: (278-27F) | |--------------|----------------------------------------------------| | 280 | LCD display on Wyse 2108 PC | |--------------|----------------------------------------------------| | 2A0 | | |--------------|----------------------------------------------------| | 2C0 | | |--------------|----------------------------------------------------| | 2E0 | COM4:, GPIB-Adapter 0 (2E1) | | | COM2:, Data acquisition (300-31F) | |--------------|----------------------------------------------------| | 300 | | |--------------|----------------------------------------------------| | 320 | XT Hard Disk interface (320-32F) | |--------------|----------------------------------------------------| | 340 | | |--------------|----------------------------------------------------| | 360 | LPT1: (378-37F) | |--------------|----------------------------------------------------| | 380 | SLDC/Sec Bi-Sync interface (380 | |--------------|----------------------------------------------------| | 3A0 | Primary Bi-Sync interface (3A0-3A9) | | | Monochrome display (3B0-3BB) | |--------------|----------------------------------------------------| | 3C0 | EGA display control (3C0-3CF) | | | CGA display control (3D0-3CF) | |--------------|----------------------------------------------------| | 3E0 | COM3: (3E8-3EF) | | | Floppy disk controller (3F0-3F7) | | | COM1: (3F8-3FF) | ------------------------------------------------------------------- IRQ CONFLICTS A unique interrupt line (IRQ) must be assigned to your network board. Each manufacturer's network board is unique in the available interrupts it offers (refer to the network board's manual to determine its interrupt options). The following table may help in selecting an interrupt option that is not currently being used in your system. It is also possible to get a specific reading of your interrupts from a computer utility program. ----------------------------------------- | IRQ | XT | AT (286,386,486)| |---------|------------|------------------| | 0 | | TIMER OUTPUT 0 | |---------|------------|------------------| | 1 | | KEYBOARD | |---------|------------|------------------| | 2 | EGA/VGA | EGA/VGA | |---------|------------|------------------| | 3 | COM2 | COM2 | |---------|------------|------------------| | 4 | COM1 | COM1 | |---------|------------|------------------| | 5 | HARD DISK | LPT2 | |---------|------------|------------------| | 6 | | FLOPPY DISK | |---------|------------|------------------| | 7 | LPT1 | LPT1 | |---------|------------|------------------| | 8 | | REAL TIME CLOCK | |---------|------------|------------------| | 9 | | | |---------|------------|------------------| | 10 | | | |---------|------------|------------------| | 11 | | | |---------|------------|------------------| | 12 | | | |---------|------------|------------------| | 13 | | COPROCESSOR | |---------|------------|------------------| | 14 | | HARD DISK | |---------|------------|------------------| | 15 | | | ----------------------------------------- Note: For best results, you should try using a free interrupt line. If the chart shows that you are using all possible interrupts, it is possible that your Ethernet or other network board may use an interrupt that is already being used. For example: many programs do not address LPT1 on the interrupt level; hence, if you have no free interrupts, it is possible to assign two functions to the same interrupt. --------------------------------------------------------------------- Any trademarks referenced in this document are the property of their respective owners. Consult your product manuals for complete trademark information. ---------------------------------------------------------------------