The following table describes the parameters found in this menu.

Parameter

Description

Options

IDE

The four IDE PIO fields let you set a PIO mode (0-4)

 

Primary/Second

for each of the four IDE devices that the onboard IDE

 

ary

interface supports. Modes 0 through 4 provide

 

Master/Slave

increased performance. In Auto mode, the system

 

PIO

automatically determines the best mode for each

 

 

device.

 

 

 

 

On-Chip IDE

The Chipset contains a PCI IDE interface with support

[Enabled],

First/Second

for two IDE channels. Select Enabled to activate the

[Disabled]

Channel

first and/or second IDE interface. Select Disabled to

 

 

deactivate an interface, if you install a primary and/or

 

 

secondary add-in IDE interface.

 

 

 

 

IDE

UDMA (Ultra DMA) is a DMA data transfer protocol

 

Primary/Second

that utilized ATA transfer protocol that utilizes ATA

 

ary

commands and the ATA bus to allow DMA commands

 

Master/Slave

to transfer data ata maximum burst rate of 33 MB/s.

 

UDMA

When you select Auto in the four IDE UDMA fields (for

 

 

each of up to four IDE devices that the internal PCI IDE

 

 

interface supports), the system automatically

 

 

determines the optimal data transfer rate for each IDE

 

 

device.

 

 

 

 

IDE DMA

This category allows you to enable or disable DMA

[Enabled],

Transfer Access

transfer access of IDE device (or IDE HDD)

[Disabled]

 

 

 

SATA 1/2

Enable/Disable Serial-ATA 1 or Serial-ATA-2. SATA 1

 

 

control port 1 and 3, SATA 2 control port 2 and 4.

 

 

 

 

IDE Prefetch

The onboard IDE drive interfaces supports IDE

 

Mode

prefetching, for faster drive accesses. If you install a

 

 

primary and/or secondary add-in IDE interface, set this

 

 

field to Disabled if the interface does not support

 

 

prefetching.

 

 

 

 

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Acer M1640, M5640 manual Pio, Udma, Ide Dma

M1640, M5640 specifications

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