User Manual

Dell
PowerEdge R710 Technical Guide 36
Intel I/O Controller Hub 9 (ICH9)
ICH9 is a highly-integrated I/O controller, supporting the following functions:
• Six x1 PCI Express Gen1 ports, with the capability of combining ports 1-4 as a x4 link
• PCI Bus 32-bit Interface Rev 2.3 running at 33 MT/s
• Serial ATA (SATA) ports with transfer rates up to 300 MB/s (R710 supports two SATA ports for optical
devices or tape backup)
• Six UHCI and two EHCI (high-speed 2.0) USB host controllers, with up to 12 USB ports (R710 uses five of
these ports for internal and external use)
• Four external USB ports and one internal USB port
• Power management interface (ACPI 3.0b compliant)
• Platform Environmental Control Interface (PECI)
• I/O interrupt controller
• SMBus 2.0 controller
• Low Pin Count (LPC) interface to Super I/O, Trusted Platform Module (TPM), and SPI-VU
• Serial Peripheral Interface (SPI) support for up to two devices (R710 BIOS is connected to the ICH9 using
SPI)