Configuring and Expanding Your Computer Using the BIOS Setup Utility Setting Description Default System Devices Menu 82 Corporate Evaluator’s Guide PS/2 Pointing Devices Disables the internal pointing devices when an external PS/2 mouse is connected. Auto External Fn Key Sets whether left CTRL+left ALT on an external keyboard is interpreted as the Fn key. Enabled IDE Controller Enables the primary (hard drive) and secondary (module bay device) controllers. Both FDD Controller Enables the floppy drive. Enabled Serial port Sets whether the serial port is active, and whether it is configured automatically or by the user. Enabled Base I/O address Sets the I/O address and interrupt.
3F8h, IRQ4 IrDA port Sets whether the infrared port is active, and whether it is configured automatically or by the user. Disabled Mode Sets the hardware to support FIR (Fast IR) or SIR (Standard IR) infrared communications. (Driver installation required for Windows 95.) FIR Base I/O address Sets the I/O address and interrupt. 2F8h, IRQ3 DMA channel Sets the DMA channel for Fast IR (FIR) mode. DMA0 Parallel Port Sets whether the parallel port is configured by the user or the BIOS or OS (automatically), or not at all. Enabled Mode Sets the port to output only, bi-directional, EPP, or ECP. ECP Base I/O address Sets the I/O address. 378h Interrupt Sets the interrupt.
IRQ7 DMA channel Sets the DMA channel for ECP mode. DMA3