Intel Server Board S3000AH - Viglen Download

Functional Architecture
Intel® Server Board S3000AH TPS
3.1 Processor Sub-System
The Intel ® Server Board S3000AH supports the following processors:
• Intel ® Pentium ® processor Extreme Edition
• Intel ® Pentium ® D Processor
• Intel ® Pentium ® 4 Processor
• Intel ® Celeron ® D Processor
The processors built on 90nm and 65nm process technology in the 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 Intel ® LGA775 socket.
The processors in the 775-land package are based on the same Pentium ® 4 micro-architecture.
They maintain compatibility with 32-bit software written for the IA-32 instruction set, while
supporting 64-bit native mode operation when coupled with supported 64-bit operating systems
and applications.
The Intel ® Celeron ® D processor is not available with dual core, Hyper-Treading Technology or
Intel ® EM64T.
3.1.1 Processor Voltage Regulator Down (VRD)
The Intel ® Server Board S3000AH has a VRD (Voltage Regulator Down) to support one
processor. It is compliant with the VRD 11 DC-DC Converter Design Guide Line and provides a
maximum of 125A.
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 asserted, the Power ON Logic will not
turn on the VRD.
3.1.2 Reset Configuration Logic
The BIOS determines the processor stepping and processor cache size through the CPUID
instruction. The processor information is read at every system power-on.
Note: The processor speed is the processor power-on reset default value. No manual processor
speed setting options exist either in the form of a BIOS setup option or jumpers.
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