Abit CX6, User Manual

Page: 56 / 114

3-22 Chapter3
CX6
(0-4) for each of the four IDE devices that the onboard IDE interface supports. Modes 0
through 4 provide successively increased performance. In Auto mode (default setting), the
system automatically determines the best mode for each device.
Master/Slave Drive Ultra DMA:
Two options are available: Auto and Disabled. The default setting is Auto . Ultra DMA is a
DMA data transfer protocol that utilizes ATA commands and the ATA bus to allow DMA
commands to transfer data at a maximum burst rate of 33 MB/sec.
Ultra DMA/33 or Ultra DMA/66 implementation is possible only if your IDE hard drive
supports it and the operating environment includes a DMA driver (Windows
®
95 OSR2 or a
third-party IDE bus master driver).
➤
Auto: If your hard drive and your system software both support Ultra DMA/33, select
Auto to enable BIOS support. For Ultra DMA/66 devices, please refer the
requirements mentioned in page 2-18. (Default setting)
➤
Disabled: If you encounter a problem in using Ultra DMA devices, you can try to disable
this item.
Onboard IDE-2 Controller:
Description is same as the Onboard IDE-1 Controller.
USB Controller:
Two options are available: Enabled and Disabled. The default setting is Enabled. This
motherboard provide two Universal Serial Bus (USB) ports, can supports USB devices. If
you don't want to use USB devices, set it to
Disabled , then the item USB Keyboard Support
will also be disabled.
✏ ✏ ✏ ✏
USB Keyboard Support:
Two options are available: BIOS and OS. The default setting is OS. If your system
contains a USB keyboard, set it to Enabled .
Init Display First:
Two options are available: PCI Slot and Onboard. The default setting is PCI Slot. When you
install additional PCI display cards, you can choose either a PCI display card or an onboard
VGA chip to activate the display boot-up screen.