PCI/Plug-n-Play (PnP) Setup 4-27
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PCI/Plug-n-Play (PnP) Setup
This section describes configuring the PCI bus system. PCI (Peripheral Component
Interconnect) is a system which allows I/O devices to operate at speeds nearing the CPU’s speed
when they communicate with their own special components.
All of the options described in this section are important and technically complex. It is strongly
recommended that only experienced users make changes to the default settings.
Plug-n-Play Aware O/S
Set this option to “Yes” if the operating system installed in the computer is Plug-n-Play aware.
BIOS only detects and enables PnP ISA adapter cards that are required for system boot. The
Windows 95 operating system detects and enables all other PnP-aware adapter cards. Windows
95 is PnP-aware. Set this option to “No” if the operating system (such as DOS, OS/2, Windows
3.x) does not use PnP.
You must set this option correctly or PnP-aware adapter cards
installed in your computer will not be configured properl
y.
Clear NVRAM
This option is used to clear NVRAM and to check or update ESCD (Extended System
Configuration Data) data after a System Power On. Set this option to “No”; it will not clear
NVRAM. The operation of update ESCD is effective in a different ESCD data comparision. If
you select the “Yes” setting, the BIOS will update ESCD each time the system powers on.
PCI Latency Timer (PCI Clocks)
This option is used to control the PCI latency timer period (follow the PCI clocks). Based on
PCI specification 2.1 or later and the PCI bus frequency in the system, users can select different
timers to meet their PCI bus environment.
Primary Graphics Adapter
This option allows you to specify a primary VGA display from two options: Onboard VGA or a
PCI VGA card.
