Memory Error Led; Intel 5500 Chipset Ioh; Ioh24D Pci Express; Figure 18. Mirroring Memory Configuration - Intel S5500WB12V Specification

Functional Architecture
3.4.10

Memory Error LED

Each DIMM is allocated an LED that, when lit, indicates a memory DIMM failure. It is the
function of the BIOS to identify bad DIMMs during the boot process. The BIOS sends a
message to the BMC to indicate which DIMM LED needs turn on.
3.5 Intel 5500 Chipset IOH
®
®
The Intel 5500 Chipset component is an I/O Hub (IOH). The Intel
connection point between various I/O components and Intel processors using the Intel
interface.
®
The Intel 5500 Chipset IOH is capable of interfacing with up to 24 PCI Express* lanes, which
can be configured in various combinations of x4, x8, x16 and limited x2 and x1 devices.
®
The Intel 5500 Chipset IOH is responsible for providing a path to the legacy bridge. In addition,
®
the Intel 5500 Chipset supports a x4 DMI (Direct Media Interface) link interface for the legacy
bridge and interfaces with other devices through SMBus, Controller Link, and RMII (Reduced
Media Independent Interface) manageability interfaces. The Intel
following features and technologies:
®

Intel QuickPath Interconnect (Intel

PCI Express* Gen2
®

Intel Virtualization Technology (Intel

Manageability Engine (ME) subsystem
3.5.1

IOH24D PCI Express*

PCI Express* Gen1 and Gen2 are dual-simplex, point-to point serial differential low-voltage
interconnects. The signaling bit rate is 2.5 Gb/s one direction per lane for Gen1 and 5.0 Gb/s
one direction per lane for Gen2. Each port consists of a transmitter and receiver pair. A link
between the ports of two devices is a collection of lanes (x1, x2, x4, x8, x16, and so forth). All
lanes within a port must transmit data using the same frequency. The following table lists the
usage of the IOH24D PCI Express* bus segments.
26

Figure 18. Mirroring Memory Configuration

®
QPI)
®
Intel order number E53971-008
Intel® Server Board S5500WB TPS
®
5500 Chipset provides a
®
5500 Chipset supports the
VT) for Directed I/O 2 (Intel
®
QPI
®
VT-D2)
Revision 1.9