Integrated Peripherals - TYAN Trinity 100AT S1590 User Manual

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Table Of Contents

Table of Contents

Chapter 4

BIOS Configuration

IDE Prefetch Mode

The onboard IDE drive interface supports IDE 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.

OnChip IDE First Channel

OnChip IDE Second Channel

IDE Prefetch Mode

IDE HDD Block Mode

IDE Primary Master PIO

IDE Primary Slave PIO

IDE Secondary Master PIO

IDE Secondary Slave PIO

IDE Primary Master UDMA

IDE Primary Slave UDMA

IDE Secondary Master UDMA

IDE Secondary Slave UDMA

Init Display First

Onboard FDD Controller

Onboard Serial Port 1

Onboard Serial Port 2

UART2 Mode

IDE HDD Block Mode

Select Enabled only if your hard drives support block mode. Most new drives

support block mode. If Enabled, block mode yields automatic detection of the

optimal number of block read/writes per sector that the drive can support.

IDE Primary/Secondary Master/Slave PIO

The four IDE PIO (Programmed Input/Output) fields let you set a PIO mode (0-

4) for each of up to four IDE devices that the internal PCI 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/Secondary Master/Slave UDMA

UDMA (Ultra DMA) is a DMA data transfer protocol that utilizes ATA

commands and the ATA bus to allow DMA commands to transfer data at a

maximum burst rate of 33 MB/s. When you select Auto in the four IDE UDMA

ROM PCI/ISA BIOS (2A5LET59)