Intel ESM-2850 2047285001R User Manual

Page 55

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User’s Manual

ESM-2850 User’s Manual

55

Item

Options

Description

IDE HDD Block Mode

Enabled

Disabled

Block mode is also called block transfer,
multiple commands, or multiple sector
read/write. If the IDE hard drive supports block
mode (most new drives do), select Enabled for
automatic detection of the optimal number of
block read/writes per sector the drive can
support.

IDE DMA transfer access

Enabled

Disabled

This item could allows you to enabled/disabled
the IDE UDMA transfer function and only use
PIO mode.

On-Chip Primary /

Secondary PCI IDE

Enabled

Disabled

The chipset contains a PCI IDE interface with
support for two IDE channels. Select Enabled to
activate the primary/Secondary IDE interface.
Select Disabled to deactivate this interface.

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.

SATA Mode

IDE

AHCI

Setup the onboard SATA Mode.

OnChip Serial ATA

Disabled

Auto

Combined Mode
Enhanced Mode

SATA Only

The chipset contains a SATA IDE interface with
support for two IDE channels. Select Enabled to
activate the primary IDE interface (Channel0).
Select Disabled to deactivate this interface.

PATA IDE Mode

Secondary

To select PATA IDE mode.

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