Integrated Peripherals - Acer 370LXA User Manual

3.6.4 IRQ-xx assigned to
If your ISA card is not PnP compatible and requires a special IRQ to support its function, set the selected IRQ-x assigned to
:"Legacy ISA". This setting informs the PnP BIOS to reserve the selected IRQ for the installed legacy ISA card.
3.6.5 DMA-x assigned to
If your ISA card is not PnP compatible and requires a special DMA channel to support its function, set the selected DMA
channel to "Legacy ISA". This setting informs the PnP BIOS to reserve the selected DMA channel for the installed legacy ISA
card.
3.6.6 PCI IDE IRQ Map To
Some old PCI IDE add-on cards are not fully PnP compatible. These cards require you to specify the slot in use to allow the
BIOS to properly configure the PnP resources.
3.6.7 Primary/Secondary IDE INT#
These two items, in conjunction with item "PCI IDE IRQ Map To", specify the IRQ routing of the primary or secondary channel of
the PCI IDE add-on card.
3.6.8 Used MEM base addr
This item, in conjunction with the Used MEM Length, lets you set a memory space for non-PnP compatible ISA card.
3.6.9 Assign IRQ For USB
Default is Enabled. You can disable this item when you do not attach any USB devices on board and need extra IRQ for
other device. The yellow exclamation mark will be shown in System/Device Manager under Windows 95/98 if you disable
this item. This is a normal status.

3.7 Integrated Peripherals

You can control Input and Output functions from this screen.
3.7.1 IDE HDD Block Mode
This feature enhances disk performance by allowing multi-sector data transfers and eliminates the interrupt handling time for
each sector.
3.7.2 IDE Primary & Secondary Master/Slave PIO
These four PIO fields let you set a PIO mode (0-4) for each of four IDE devices. When under "Auto" mode, the system
automatically set the best mode for each device
3.7.3 IDE Primary & Secondary Master/Slave UDMA
When set to "Auto" mode, the system will detect if the hard drive supports Ultra DMA mode.
3.7.4 On-Chip primary/Secondary PCI IDE
Select "Enabled" to activate each on-board IDE channel separately, Select "Disabled", if you install an add-on IDE Control card
Figure 3-7 Integrated Peripherals
ROM PCI / ISA BIOS (XXXXXXXX)
INTEGRATED PERIPHERALS
AWARD SOFTWARE, INC.