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Chapter 30. Maintaining and Optimizing S... > Understanding and Resolving Hardware...

Understanding and Resolving Hardware Conflicts

Windows, together with its Plug and Play technology, has grown far better at detecting and preventing hardware conflicts over the past few years. Still, system conflicts do arise, especially when you're using ISA cards and other legacy hardware. You don't need to throw these items away, however, when they are still perfectly serviceable. For example, I'm still happily using a bunch of ISA network cards I bought probably 10 years ago, and they're effectively operating on my Ethernet backbone.

More often than not, configuration and installation problems are due only to incorrect settings on network, I/O, sound, and other cards. The result is cards that conflict with one another for the same IRQ (interrupt request line), base I/O port address, DMA, or base memory address. Usually, these settings are made by changing jumpers or DIP switches on the board. Legacy items that typically required settings were network cards, bus mouse cards, sound cards, tape backup controllers, SCSI cards, and fax/modem cards.


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