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Shuttle XPC Barebone supports Intel Pentium D with 65nm core

The Shuttle XPC Barebones SD31P (BIOS SD31S019) and SD36G5M already support the new processors:

At begin of January 2006 Intel has released the second family of dual-core desktop processors: the Intel Pentium D 900 sequence, codenamed "Presler". In contrast to the predecessor (codename "Smithfield", 800 sequence) it is produced using the 65 nm semiconductor fabrication process instead of 90 nm, which results in lower power consumption. In addition, the Presler core features Intel's virtualization technology (VT, see below). These processors are supported by mainboards with a modern Intel Express chipset starting from 945G (Lakeport) and appropriate BIOS update.

In addition, Intel introduces the Pentium 4 6x1 series with 65nm Cedar Mill core as successor of the 6x0 series with Precott-2M core. Also here the manufacturing process has been shrinked from 90nm to 65nm, but Cedar Mill still not supports the Virtualization Technology (VT).

The Shuttle XPC Barebones SD31P (BIOS SD31S019) and SD36G5M already support the new processors:

Dual Core Single Core
Pentium D 920 (2,8 GHz)
Pentium D 930 (3,0 GHz)
Pentium D 940 (3,2 GHz)
Pentium D 950 (3,4 GHz)
Pentium 4 661 ( 3.60 GHz)
Pentium 4 651 ( 3.40 GHz)
Pentium 4 641 ( 3.20 GHz)
Pentium 4 631 ( 3.00 GHz)

Intel Pentium D Dual Core Processor Comparison: Smithfield versus Presler

Core Codename Smithfield Presler
Process 90nm 65nm
Type Multicore (2 cores, 1 chip) Multichip (2 cores, 2 chips)
Socket 775 775
L2-Cache 2x 1MB 2x 2MB
Introduction May 2005 January 2006
Pentium D Model 820 (2,8 GHz)
830 (3,0 GHz)
840 (3,2 GHz)
920 (2,8 GHz)*
930 (3,0 GHz)
940 (3,2 GHz)
950 (3,4 GHz)
FSB 800 MHz 800 MHz
Features SSE 1-3, XD, EM64T, EIST SSE 1-3, XD, EM64T, EIST*, VT
TDP up to 115W 95 Watt
compatible
Chipsets
i945 Express (Lakeport)
i955X Express (Glenwood)
i975X Express (Broadwater)
i945 Express (Lakeport)
i955X Express (Glenwood)
i975X Express (Broadwater)
Pentium
Extreme
Edition
Model 840 EE (3,2 GHz) 955 EE (3,46 Ghz)
FSB 1066 MHz 1066 MHz
Features SSE 1-3, XD, EM64T, EIST, HT SSE 1-3, XD, EM64T, EIST, VT, HT
TDP 130 Watt 130 Watt
compatible
Chipsets
i955X Express (Glenwood)
i975X Express (Broadwater)
i975X Express (Broadwater)

*) All 900 models except 920 will have Enhanced Intel SpeedStep (EIST) enabled.

Intel® Virtualization Technology (VT, codename "Vanderpool")
Intel® Virtualization Technology enables one hardware platform to function as multiple "virtual" platforms. For businesses, it offers improved manageability, limiting downtime and maintaining worker productivity by isolating computing activities into separate partitions. In the home, it allows creating unique user environments for multiple family members looking to use the same platform simultaneously. (supported only on Pentium D 900 sequence). Intel Virtualization Technology requires a computer system with a processor, chipset, BIOS, enabling software and/or operating system, device drivers and applications designed for these features.

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