Intel Desktop Board DH67CL Product Guide
20
Legacy I/O
The board’s Legacy I/O Controller provides the following legacy features:
• Low pin count (LPC) interface
• Consumer Infrared (CIR) support
• Serial IRQ interface compatible with serialized IRQ support for Conventional PCI
bus systems
• Intelligent power management, including a programmable wake-up event interface
The BIOS Setup program provides configuration options for the Legacy I/O controller.
BIOS
The BIOS provides the Power-On Self-Test (POST), the BIOS Setup program, and the
PCI Express and SATA auto-configuration utilities. The BIOS is stored in the Serial
Peripheral Interface (SPI) Flash device.
The BIOS can be updated by following the instructions in Chapter 3 starting on
page 61.
SATA Auto Configuration
If you install a SATA device (such as a hard drive) in your computer, the auto-
configuration utility in the BIOS automatically detects and configures the device for
your computer. You do not need to run the BIOS Setup program after installing a
SATA device. You can override the auto-configuration options by specifying manual
configuration in the BIOS Setup program.
The BIOS sets SATA to ACHI mode by default.
PCI*/PCI Express Auto Configuration
If you install a Conventional PCI or PCI Express add-in card in your computer, the PCI
auto-configuration utility in the BIOS automatically detects and configures the
resources (IRQs, DMA channels, and I/O space) for that add-in card. You do not need
to run the BIOS Setup program after you install a Conventional PCI or PCI Express
add-in card.
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