DFI G7B330-BR - Manual (Page 70)

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BIOS Setup
IDE HDD Block Mode
Enabled The IDE HDD uses the block mode. The system BIOS
will check the hard disk drive for the maximum block
size the system can transfer. The block size will depend
on the type of hard disk drive.
Disabled The IDE HDD uses the standard mode.
IDE DMA Transfer Access
This field is used to enable or disable the DMA transfer function of
an IDE hard drive.
IDE Primary Master UDMA
This field allows you to set the Ultra DMA in use. When Auto is
selected, the BIOS will select the best available option after checking
your hard drive or CD-ROM.
Auto The BIOS will automatically detect the settings for
you.
Disabled The BIOS will not detect these categories.
IDE Secondary Master UDMA
This field allows you to set the Ultra DMA in use. When Auto is
selected, the BIOS will select the best available option after checking
your hard drive or CD-ROM.
Auto The BIOS will automatically detect the settings for
you.
Disabled The BIOS will not detect these categories.