Service manual

8258I N/B Maintenance

The ICH7 provides extensive I/O support. Functions and capabilities include:

• PCI Express base specification, revision 1.0a support

• PCI local bus specification, revision 2.3 support for 33 MHz PCI operations (supports up to six Req/Gnt pairs)

• ACPI power management logic support

• Enhanced DMA controller, interrupt controller and timer functions

• Integrated serial ATA host controller with independent DMA operation on four ports and AHCI (ICH7R

support

• USB host interface with support for eight USB ports; four UHCI host controllers; one EHCI high-speed USB

2.0 host controller

• System Management Bus (SMbus) specification, version 2.0 with additional support for I

C devices

• Supports audio codec ’97, revision 2.3 specification (a.k.a , AC ’97 component specification, revision 2.3)

which provides a link for audio and telephony codecs (up to 7 channels)

• Supports Intel high definition audio

• Supports Intel Matrix storage technology (ICH7R only)

• Supports Intel Active Management Technology

1.2.4 I/O Controller Hub: Intel ICH7-M

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