Integrated Peripherals; Onchip Ide Device - TYAN Tomcat i7221 S5150 User Manual

Tomcat i7221 S5150 Chapter 3: BIOS Setup

3.6 Integrated Peripherals

Options related to onboard peripheral features could be altered through the following:

3.6.1 OnChip IDE Device

IDE HDD Block Mode
The IDE HDD Block Mode feature speeds up hard disk access by transferring data from
multiple sectors at once instead of using the old single sector transfer mode. When you enable
it, the BIOS will automatically detect if your hard disk 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.
If you disable IDE HDD Block Mode, only 512 bytes of data can transferred per interrupt. This
degrades performance quite a bit. For optimal performance, enable this option.
Enabled / Disabled
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