Desktop Board Features
17
Enhanced IDE Interface
The ICH7 IDE interface handles the exchange of information between the processor and peripheral
devices like hard disks, CD-ROM drives, and Iomega Zip* drives inside the computer. The
interface supports:
Up to two IDE devices (such as hard drives)
ATAPI-style devices (such as CD-ROM drives)
Older PIO Mode devices
Ultra DMA-33 and ATA-66/100 protocols
Serial ATA
The desktop board supports eight Serial ATA channels, connecting one device per channel in either
a RAID or a non-RAID configuration.
Expandability
The desktop board supports the following:
One PCI Express x16 card as an electrical x16 card or two PCI Express x16 cards as electrical
x8 cards
One PCI Express x16 card as an electrical x4 card
Two PCI bus add-in cards
Related Links
For information about installing a PCI Express x16 card, see page 35 in Chapter 2.
BIOS
The BIOS provides the Power-On Self-Test (POST), the BIOS Setup program, the PCI and IDE
auto-configuration utilities, and the video BIOS.
See Chapter 3 on page 57 for more information about the BIOS.

Serial ATA and IDE Auto Configuration

If you connect a Serial ATA or IDE device (such as a hard drive) to your desktop board, 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 Serial ATA or IDE device. You
can override the auto-configuration options by specifying manual configuration in the BIOS Setup
program.
When booting from a Serial ATA device, the device connected to Serial ATA connector 0 is the
first boot device and the device connected to Serial ATA connector 3 is the last boot device by
default.