MSI 865GM3 Series User Manual page 55

MS-6763 M-ATX Mainboard
IDE DMA Transfer Access
This setting is used to enable or disable the DMA transfer function of
IDE hard drives under certain operating systems that do not support IDE
drivers, ex: DOS. Setting options: Enabled, Disabled.
On-Chip Primary/Secondary PCI IDE
The integrated peripheral controller contains an IDE interface with sup-
port for two IDE channels. Choose Enabled to activate each channel
separately.
IDE Primary/Secondary Master/Slave PIO
The four IDE PIO (Programmed Input/Output) fields let you set a PIO
mode (0-4) for each of the four IDE devices that the onboard IDE inter-
face supports. Modes 0 through 4 provide successively increased
performance. In Auto mode, the system automatically determines the best
mode for each device. The settings are: Auto, Mode 0, Mode 1, Mode 2,
Mode 3, Mode 4.
IDE Primary/Secondary Master/Slave UDMA
Ultra DMA/33 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). If your hard
drive and your system software both support Ultra DMA/33, Ultra DMA/
66 and Ultra DMA/100, select Auto to enable BIOS support. The settings
are: Auto, Disabled.
**On-Chip Serial ATA Setting**
On-Chip Serial ATA
This setting controls the Serial ATA controller on the south bridge.
Options: Disabled, Auto, Legacy Mode, Native Mode. When set to
Disabled, the SATA controller will be disabled. When set to Auto, the
SATA controller will be automatically controlled by the BIOS. When set
to Legacy Mode, the PATA & SATA controllers are combined to sup-
port a maximum of 2 IDE drives in each channel. When set to Native
Mode, both SATA and PATA controllers are enabled to support a maxi-
mum of 6 IDE drives (The support of 6 IDE drives depends on the oper-
ating system installed. Currently only Windows 2000 & Windows XP
support this function.)
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