Avalue Technology EMX-GM45E, Руководство пользователя

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User
’s Manual
EMX-GM45E User
‟s Manual
51
The chipset contains a PCI IDE interface with support for one IDE channel and two SATA
channels. Select Enabled to activate the primary IDE interface. Select Disabled to
deactivate this interface.
Item Options Description
IDE HDD Block Mode
Enabled
Disabled
Speeds up HDD access by transferring data
from multiple sectors at once instead of using
the old single sector transfer mode if the HDD
supports block transfers and configure the
proper block transfer settings for it. Up to 64KB
of data can be transferred per interrupt with IDE
HDD Block Mode enabled. (Virtually all HDDs
now support block transfers.)
IDE DMA transfer access
Enabled
Disabled
It allows you to enable or disable DMA (Direct
Memory Access) support for all IDE devices. If
you disable this BIOS feature, the BIOS will
disable DMA transfers for all IDE drives. They
will revert to PIO mode transfers. If you enable
this BIOS feature, the BIOS will enable DMA
transfers for all IDE drives. The proper DMA
mode will be detected at boot-up. If the drive
does not support DMA transfers, then it will use
PIO mode instead.
On-Chip Primary/Secondary
PCI IDE
Enabled
Disabled
The integrated peripheral controller contains an
IDE interface with support for two IDE channels.
It allows you to activate each channel
separately.
IDE Primary Master PIO
IDE Primary Slave PIO
IDE Secondary Master PIO
IDE Secondary Slave PIO
Auto
Mode 0
Mode 1
Mode 2
Mode 3
Mode 4
The 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 interface
supports. Modes 0 through 4 provide
successively increased performance. In Auto
mode, the system automatically determines the
best mode for each device.
IDE Primary Master UDMA
IDE Primary Slave UDMA
IDE Secondary Master UDMA
IDE Secondary Slave UDMA
Auto
Disabled
Ultra DMA 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 the hard drive and the system
software both support Ultra DMA, select Auto to
enable BIOS support.
3.5.4.1.1 LEGACY Mode Support
Computing, legacy mode is a state in which a computer system, component, or software
application behaves in a way different from its standard operation in order to support older
software, data, or expected behavior. It differs from backward compatibility in that an item in
this state will often sacrifice newer features or performance, or be unable to access data or
run programs it normally could, in order to provide continued access to older data or
functionality. Sometimes it can allow newer technologies that replaced the old to emulate
them when running older operating systems