Chapter 1: Introduction
1-9
Introduction
1-2
Chipset Overview
B u i l t u p o n t h e f u n c t i o n a l i t y a n d t h e c a p a b i l i t y o f t h e I n t e l E 7 5 2 0
(Lindenhurst) chipset, the X6DHR-TG motherboard provides the perfor-
mance and feature set required for dual processor-based servers, with
configuration options optimized for communications, presentation, storage,
computation or database applications. The Intel E7520 (Lindenhurst) chipset
consists of the following components: the E7520 (Lindenhurst) Memory
Controller Hub (MCH), the ICH5R Controller Hub (ICH), the Intel PCI-X Hub
(PXH).
The E7520 MCH supports single or dual Xeon EM64T (Nocona) processors
with Front Side Bus speeds of 800 MHz. Its memory controller provides
direct connection to two channels of registered DDR266, DDR333 with a
marched system bus address and data bandwidths of up to 6.4GB/s. The
E7520 also supports the new PCI Express high speed serial I/O interface
for superior I/O bandwidth. The MCH provides three configurable x8 PCI
Express interfaces which may alternatively be configured as two indepen-
dent x4 PCI Express interfaces. These interfaces support connection of
the MCH to a variety of other bridges that are compliant with the PCI Ex-
press Interface Specification, Rev. 1.0a, such as Anvik 2 GLAN Adaptor, H/
W RAID controllers and TCP/IP Off-load engines. The MCH interfaces with
the ICH5R I/O Controller Hub (ICH5R) via a dedicated Hub Interface support-
ing a peak bandwidth of 266 MB/s using a x4 base clock of 66 MHz. The
PXH provides connection between a PCI Express interface and two inde-
pendent PCI bus interfaces that can be configured for standard PCI -X 1.0
protocol.
ICH5R System Features
In addition to providing the I/O subsystem with access to the rest of the
system, the ICH5R I/O Controller Hub integrates many I/O functions.
The ICH5R I/O Controller Hub integrates: 2-channel Ultra ATA/100 Bus Mas-
ter IDE Controller, two Serial ATA (SATA) Host w/RAID0, RAID1 support,
SMBus 2.0 Controller, LPC/Flash BIOS Interface, PCI 2.2 Interface and Sys-
tem Management Controller.
