If a change is made to any one of the Required Platform Components for Intel® Pentium® 4 Processor with HT Technology, re-verification is required unless the change is noted below as an interchangeable component. The Required Platform Components for Intel Pentium 4 Processor with HT Technology are an Intel Pentium 4 processor supporting Hyper-Threading Technology and a Hyper-Threading Technology enabled chipset, BIOS and operating system as specified below.

Intel® Desktop Boards	3rd Party Desktop Boards	Processors
Branded Intel® Desktop Boards listed within each box are considered interchangeable without re-verification.	Interchangeability is allowed within most model families as long as there is no change to the Intel required platform components that support Hyper-Threading Technology including Chipset.	Processors listed within each box are considered interchangeable on the associated boards listed in the adjacent left column boxes without re-verification.
Intel® Desktop Boards based on the Intel® 9xx Express Chipset D955XBK D945GNT D945GCZ D945PSN D925XECV2 D925XCV D915PBL D915PCM D915PSY D915GUX D945GTP D945PVS D945PAW D925XEBC2 D925XBC D915PCY D915PGN D915GEV D915GAG D915GAV	3rd Party Desktop Boards Utilizing Intel® 9xx Express Chipset Must re-verify if changing motherboard model/name. Must re-verify if changing motherboard brands.	800-FSB processors Intel® Pentium® 4 Processor supporting Hyper-Threading Technology 533-FSB processors Intel® Pentium® 4 Processor 3.06 GHz supporting Hyper-Threading Technology
Intel® Desktop Boards based on the Intel® 875, Intel® 865 or Intel® 848 Chipsets D875PBZ D865PERL D865GBF D865GLC Other Intel desktop boards based on the Intel® 875 and Intel® 865 chipsets D848PMB	3rd Party Desktop Boards Utilizing Intel® 875, Intel® 865 or Intel® 848 Chipsets Must re-verify if changing motherboard model/name. Must re-verify if changing motherboard brands.	533-FSB processors Intel® Pentium® 4 Processor 3.06 GHz supporting Hyper-Threading Technology
Intel® Desktop Boards based on the Intel® 850 Chipset D850EMV2	3rd Party Desktop Boards Utilizing Intel® 850E Chipset Must re-verify if changing motherboard model/name Must re-verify if changing motherboard brands
Intel® Desktop Boards based on the Intel® 845 Chipset D845PEBT2 D845PESV D845GERG2 D845GVAD2 D845GVSR D845PECE D845GEBV2       Other Intel desktop boards based on the Intel® 845 chipset	3rd Party Desktop Boards Utilizing Intel® 845PE,Intel® 845GE, Intel® 845E or Intel® 845GV Chipsets Must re-verify if changing motherboard model/name. Must re-verify if changing motherboard brands.

Operating Systems
Operating Systems that include optimizations for Hyper-Threading Technology

• Windows* XP Professional 64, Windows* XP MCE, Windows* XP Home, Windows* XP Professional
• Certain versions of Linux* operating systems such as COSIX* Linux 4.0, RedHat* Linux 9 (Professional and Personal versions), RedFlag* Linux Desktop 4.0 and SuSe* Linux 8.2 (Professional and Personal versions).

Must re-verify if changing brand of operating system (e.g., different Linux vendor). No re-verify for OS version updates that include optimizations for Hyper Threading Technology within the same vendor.
No re-verify between Microsoft* OS options (Windows* XP Home, Windows* XP Professional, Windows* XP MCE). No re-verify for service pack revisions.

BIOS BIOS must support Hyper-Threading Technology and have it enabled.
No re-verify for BIOS version updates that support Hyper-Threading Technology within the same vendor.

ALL OTHER SYSTEM COMPONENTS SUCH AS HARD DRIVES, OPTICAL DRIVES, MEMORY, GRAPHICS CARDS, I/O PERIPHERALS AND APPLICATIONS MAY BE INTERCHANGED WITHOUT RE-VERIFICATION.

<sup>1 Hyper-Threading Technology requires a computer system with an Intel® Pentium® 4 processor supporting Hyper-Threading Technology and an HT Technology enabled chipset, BIOS and operating system. Performance will vary depending on the specific hardware and software you use. See http://www.intel.com/info/hyperthreading/ for moreinformation including details on which processors support HT Technology.

Intel, the Intel logo and Pentium are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries.

*Other names and brands may be claimed as the property of others Copyright © 2004, Intel Corporation.</sup>