1-4 Technical Information
Plug and Play Support
The system comes with Plug and Play BIOS technology. Plug and Play eliminates
complicated setup procedures for installing Plug and Play expansion boards.
To add a Plug and Play expansion board, simply power off the system, install the board, and
power on the system. There are no jumpers to set and no system resource conflicts to
resolve. Plug and Play automatically configures the board for the system. The system also
supports non-Plug and Play boards.
Plug and Play is controlled by the Plug and Play BIOS and the system’s operating system.
The Plug and Play BIOS is stored in the Intel 28F002 Flash EPROM on the system board.
The Plug and Play BIOS adds several steps to the POST process. During POST, the Plug
and Play evaluates the configuration of installed boards and assigns available system
resources to the devices. On completion of Plug and Play POST, the operating system
checks to see if there are any additional resources required, then assigns available resources
to the devices.
CMOS Memory/Real-Time Clock Battery
The 82371EB PCI ISA IDE Xcelerator (PIIX4E) on the system board stores system
information in non-volatile CMOS memory. The chip also contains the system’s real-time
clock. Both are maintained by a 3-volt coin cell lithium battery on the system board. The
battery is replaceable.
DMA/IRQ Settings
The system automatically configures interrupts requests (IRQ), direct memory access
(DMA) channels, and other parameters when adding PCI boards with minimal user
intervention.
Table 1-3 and Table 1-4 list system IRQ and DMA default settings.
