Functional Architecture
Intel® Server Board SE7505VB2
3. Functional
Architecture
This chapter provides a high-level description of the functionality distributed between the
architectural blocks of the Intel
®
Server Board SE7505VB2.
3.1 Processor and Memory Subsystem
The Intel
®
chipset E7505 provides a 36-bit address, 64-bit data processor host bus interface,
operating at 533 MHz in the AGTL+ signaling environment. The MCH component of the chipset
provides an integrated memory controller, an 8-bit hub interface, and one 16-bit hub interfaces.
The hub interface provides the interface to two 64-bit/100-MHz PCI-X buses and one 64-bit/66-
MHz PCI bus via the P64H2, and the interface to two 32-bit/33-MHz PCI buses via the ICH4.
The board directly supports up to 8 GB of ECC memory, using four DDR266 compliant ECC
DIMMs. The ECC implementation in the MCH can detect and correct single-bit errors (SBE),
detect multiple-bit errors (MBE), and supports Intel
®
x4 Single Data Device Correction (Intel x4
SDDC) feature with x4 DIMMs.
3.1.1 Processor
Support
The Intel Server Board SE7505VB2 supports one or two processors in the 604-pin FCPGA
package. When two processors are installed, all processors must be of identical revision, core
voltage, and bus/core speed. When only one processor is installed, it should be in the socket
labeled CPU1 and the other socket must be empty. The support circuitry on the server board
consists of the following:
Dual 604-pin processor sockets supporting 533MHz FSB Intel Xeon processors.
Processor host bus AGTL+ support circuitry.
Table 1. Processor Support Matrix
Processor Family
Package Type
Frequency Cache Size Front Side Bus Speed
Intel Xeon
FCPGA
3.06GHz
512KB
533
Intel Xeon
FCPGA
2.8 GHz
512KB
400 / 533
Intel Xeon
FCPGA
2.67 GHz
512KB
400 / 533
Intel Xeon
mPGA / FCPGA
2.4 GHz
512KB
400 / 533
Intel Xeon
mPGA / FCPGA
2.2 GHz
512KB
400 / 533
Intel Xeon
mPGA / FCPGA
2.0GHz
512KB
400 / 533
Intel Xeon
mPGA / FCPGA
1.8GHz
512KB
400
Notes:
Processors must be populated in sequential order. Processor socket 1 must be
populated before processor socket 2.
The board is designed to provide up to 65A of current per processor. Processors with
higher current requirements are not supported.
No terminator is required in the second processor socket when using a uni-processor
configuration.
Revision
1.2
Intel part number C32194-002
16
