IRQ Resources
When resources are controlled manually, assign each system interrupt as one
of the following types, depending on the type of device using the interrupt :
Legacy ISA
Devices compliant with the original PC/AT bus specification,
requiring a specific interrupt (such as IRQ4 for serial port 1).
PCI/ISA PnP
Device compliant with the Plug and Play standard, whether
designed for PCI or ISA bus architecture.
D MA R esour ces
W hen resources are controlled manually, assign each system DMA channel as
one of the following types, depending on the type of device using the DMA :
Legacy ISA
Devices compliant with the original PC/AT bus specification,
requiring a specific DMA channel.
PCI/ISA PnP
Devices compliant with the Plug and Play standard, whether
designed for PCI or ISA bus architecture.
PCI/VGA Palette Snoop
Normally this option is always Disabled! Nonstandard VGA display adapters
such as overlay cards or MPEG video cards may not show colors properly.
Setting Enabled should correct this problem. If this field set Enabled, any I/O
access on the ISA bus to the VGA card's palette registers will be reflected on
the PCI bus. This will allow overlay cards to adapt to the changing palette
colors.
Assign IRQ For VGA
Many high-end graphics accelerator cards now require an IRQ to function
properly. Disabling this feature with such cards will cause improper operation
and/or poor performance. Thus, it's best to make sure you enable this feature
if you are having problems with your graphics accelerator card. However,
some low-end cards don't need an IRQ to run normally. Check your graphics
card's documentation (manual). If it states that the card does not require an
IRQ, then you can disable this feature to release an IRQ for other uses. When
in doubt, it's best to leave it enabled unless you really need the IRQ.
Assign IRQ For USB
Windows 95 will automatically give an IRQ to the USB port even if there is no
USB peripheral connected. Disabling this will free the IRQ.
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3312400 User's Manual
