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2 storage configuration – Asus M4A87TD EVO User Manual

Page 55

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Chapter 2: BIOS setup

2-9

Block (Multi-Sector Transfer) M [Auto]

[Auto]

When set to [Auto], the data transfer from and to the device occurs in

multiple sectors at a time if the device supports multi-sector transfer feature.

[Disabled]

When set to [Disabled], the data transfer from and to the device occurs one

sector at a time.

PIO Mode [Auto]

[Auto]

Allows automatic selection of the PIO (Programmed input/output) modes,

which correspond to different data transfer rates.

[0] [1] [2] [3] [4] Sets the PIO mode to Mode 0, 1, 2, 3, or 4.

DMA Mode [Auto]

DMA (Direct Memory Access) allows your computer to transfer data to and from the hardware

devices installed with much less CPU overhead.
The DMA mode consists of SDMA (single-word DMA), MDMA (multi-word DMA), and UDMA

(Ultra DMA). Setting to [Auto] allows automatic selection of the DMA mode.

SMART Monitoring [Auto]

[Auto]

Allows automatic selection of the S.M.A.R.T (Smart Monitoring, Analysis,

and Reporting Technology).

[Enabled]

Enables the S.M.A.R.T feature.

[Disabled]

Disables the S.M.A.R.T feature.

32Bit Data Transfer [Enabled]

[Enabled]

Sets the controller to combine two 16-bit reads from the hard disk into

a single 32-bit double word transfer to the processor. This makes more

efficient use of the PCI bus as fewer transactions are needed for the

transfer of a particular amount of data.

[Disabled]

Disables this function.

2.4.2

Storage Configuration

The Storage Configuration menu allows you to configure your storage devices. Select an item

then press to display the submenu.

OnChip SATA Channel [Enabled]

[Enabled]

Enables the onboard channel SATA port.

[Disabled]

Disables the onboard channel SATA port.

The following two items appear only when you set the OnChip SATA Channel item to

[Enabled].