Functional Architecture; Processor Subsystem; Processor Vrd; Reset Configuration Logic - Intel SE7221BA1 Technical Manual

Functional Architecture

3. Functional Architecture
3.1

Processor Subsystem

The Intel® Entry Server Board SE7221BA1-E supports Intel
processors in the 775-land package, with enhancements to the Intel
architecture. The Intel
775-land package utilize Flip-Chip Land Grid Array (FC-LGA4) package technology, and plug
into a 775-land LGA socket, referred to as the LGA775 socket. Pentium® 4 and Celeron
processors in the 775-land package are based on the same Intel® 32-bit micro-architecture and
maintain the tradition of compatibility with IA-32 software. This generation of the Pentium
Processor also supports Intel
operation with 64bit operating systems. The Intel
®
Intel EM64T.
3.1.1

Processor VRD

The Intel® Entry Server Board SE7221BA1-E has a VRD (Voltage Regulator Down) to support
one processor. The VRD is compliant with the VRM 10.1 specification and provides a maximum
of 120A, which is capable of supporting the requirements for Intel
®
Celeron D processors.
The board hardware monitors the processor VTTEN (Output enable for VTT) pin before turning
on the VRD. If the VTTEN pin of the processors is not identical, then the Power ON Logic will
not turn on the VRD.
3.1.2

Reset Configuration Logic

The BIOS determines the processor stepping, cache size, etc through the CPUID instruction.
The requirements are as follows:
•
The Processor will run at a fixed speed, but can be programmed by BIOS to operate at a
lower or higher speed.
•
The processor information is read at every system power-on.
•
No manual processor speed setting options exist either in the form of a BIOS setup
option or jumpers.
3.1.3

Processor Module Presence Detection

Intel® Entry Server Board SE7221BA1-E does not support this function.
3.1.4

Processor Support

The Intel® Entry Server Board SE7221BA1-E supports one Intel
processor in an LGA775 processor socket with an 800 or 533 MHz system bus.
Check the Intel® web site
for the most up-to-date list of supported processors.
6
® ®
Pentium 4 and Celeron
®
EM64T (Extended Memory 64 Technology) for 64bit native mode
http://support.intel.com/support/motherboards/server/se7221ba1-e/
Intel® Entry Server Board SE7221BA1-E TPS
®
Pentium
®
®
processors built on 90 nm process in the
® ®
Celeron D Processor does not support
®
Pentium
®
Pentium® 4 or Celeron
® ®
4 and Celeron D
®
NetBurst micro-
®
®
® ®
4 and Intel
®
Revision 1.5
D
4
D