User Guide

Frequently Asked Questions
B-7
Model OS/Driver Mode Winbench97
Disk Winmark
(Business)
Winbench97
Disk Winmark
(High End)
Quantum
Fireball 1.2G
Windows 95 OSR2 PIO
mode 4
717 2150
Quantum
Fireball 1.2G
Windows 95 OSR2 +
INTEL PIIX4 driver
DMA
mode 2
822 3050
Quantum
ST1.6A
Windows 95 OSR2 PIO
mode 4
853 2630
Quantum
ST1.6A
Windows 95 OSR2 +
INTEL PIIX4 driver
DMA/33 1040 4020
Q: What is PnP (Plug and Play)?
A: In the past, the IRQ/DMA and memory or I/O space of add-on cards are
normally set manually, i.e., by jumper or by proprietary utility. The user has to
check the user's guide for the correct setting. Sometimes, resource conflict
occurs and this leads to unstable system. The PnP specification suggests a
standard register interface for both BIOS and OS (such as Win95). These
registers are used by BIOS and OS to configure system resource and prevent
any conflicts. The IRQ/DMA/Memory will be automatically allocated by PnP
BIOS or OS.
Currently, almost all the PCI cards and most ISA cards are PnP compliant. If
you are still using a Legacy ISA card that cannot support PnP, set the
corresponding resource (IRQ/DMA/memory) to ISA in the BIOS "PCI/PnP
Setup".
Q: What is ACPI (Advanced Configuration & Power Interface) and OnNow?
A: The ACPI is new power management specification of 1997 (PC97). It intends to
save more power by taking full control of power management to operating
system and not through BIOS. Because of this, the chipset or super I/O chip
needs to provide standard register interface to OS (such as Win97) and
provides the ability for OS to shutdown and resume power of different part of
chip. The idea is a bit similar to the PnP register interface.
ACPI defines momentary soft power switch to control the power state transition.
Most likely, it uses the ATX form factor with momentary soft power switch. The
most attractive part of ACPI for desktop user is probably the "OnNow" feature,
an idea from notebook. This feature allows you to immediately resume to your
original work without the long time waiting from bootup, entering Win95 and
running Winword. The AX5T with Intel TX chipset can support ACPI.
Q: What is ATX Soft Power On/Off and Momentary Switch?