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Introduction of the BIOS
3-21
User’s Manual
IDE drive interfaces supports IDE prefetching, for faster drive accesses. If you install a
primary and/or secondary add-in IDE interface, set this field to
Disabled
if the interface does
not support prefetching.
Init Display First:
Two options are available: PCI Slot or AGP. The default setting is
AGP.
When you install
more than one display cards, you can choose either a PCI display card (PCI Slot) or an AGP
display card (AGP) to activate the display boot-up screen. If you only installed one display
card, the BIOS will detect which slot (AGP or PCI) you installed it, in then everything will
be take care of by the BIOS.
USB Controller:
Two options are available: Disabled or Enabled. The default setting is
Enabled
. This should
be enabled if your system has a USB installed on the system board and you wish to use it.
Even when so equipped, if you add a higher performance controller, you will need to disable
this feature. If you choose disable this item, the “USB Keyboard Support” item will
disappear in
Chipset Features Setup
menu.
✏
✏
✏
✏
USB Keyboard Support:
Two options are available: BIOS and OS. The default setting
is
OS.
If your operating system supports a USB keyboard, please set it to
OS
. Only in
some situations, such as in a pure DOS environment that does not support a USB
keyboard, should you set it to BIOS.
IDE HDD Block Mode:
This item can be set as Enabled or Disabled.
Most of new hard disk drives (IDE drives) support multi-sector transfers. This feature
speeds up hard disk drive access performance and reduces the time necessary to access data.
When this item is enabled, the BIOS will automatically detect if your hard disk drive
supports this feature or not, and will choose the right settings for you. (
The default is
Enabled
)
Onboard FDD Controller:
Two options are available: Disabled or Enabled. The default setting is
Enabled
. This is set to
Enabled or Disabled the Onboard FDD Controller. If you add a higher performance
controller, you will need to disable this feature.
Onboard Serial Port 1:
This item allows you to determine access onboard serial port 1 controller with which I/O
address. Six options are available: Auto
'
Disabled
'
3F8/IRQ4
'
2F8/IRQ3
'
3E8/IRQ4
'
2E8/IRQ3
'
Back to Auto. The default setting is
3F8/IRQ4
.
Onboard Serial Port 2:
This item allows you to determine access onboard serial port 2 controller with which I/O
address. Six options are available: Auto
'
Disabled
'
3F8/IRQ4
'
2F8/IRQ3
'
3E8/IRQ4
'
2E8/IRQ3
'
Back to Auto. The default setting is
2F8/IRQ3
.
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