Dell
PowerEdge M710HD Technical Guide
26
Table 8.
M710HD PCIe Assignments
Port Number
M710HD
IOH
Port 0
ESI
Port 1-2
H200
Port 3
NDC connection
Port 4
Port 5-6
Not Used
Port 7-8
FAB B
Port 9-10
FAB C
ICH9
x4 Port 1-4
Unused
x1 Port 5
Unused
x1 Port 6
Unused
8.5
Intel I/O Controller Hub 9
The Intel I/O Controller Hub 9 (ICH9) is a highly integrated I/O controller supporting the following
functions:
Six x1 PCIe Gen1 ports with the capability of combining ports 1-4 as a x4 link
PCI Bus 32-bit Interface Rev 2.3 running at 33MT/s
Serial ATA (SATA) ports with transfer rates up to 300MB/s (M710HD does not support SATA)
Six UHCI and two EHCI (high-speed 2.0) USB host controllers with up to 12 USB ports (M710HD
uses three of these ports for internal and external use)
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 Trusted Platform Module (TPM)
and
SPI-VU
Serial Peripheral Interface (SPI) support for up to two devices
8.6
PCIe Gen2
PCIe is a serial point
‐
to
‐
point interconnect for I/O devices. PCIe Gen2 doubles the signaling bit rate
of each lane from 2.5 Gb/s to 5 Gb/s. Each of the PCIe Gen2 ports is backwards
‐
compatible with
Gen1 transfer rates.
8.7
Direct Media Interface
The Direct Media Interface (DMI) connects the Boxboro
‐
EX Legacy IOH with the Intel I/O Controller
Hub (ICH). The DMI is equivalent to a x4 PCIe Gen1 link with a transfer rate of 1 GB/s in each
direction.
8.8
PCIe Mezzanine Connectors
The M710HD supports two x8 PCIe Gen2 mezzanine connectors.
