The Boxed Intel® Core™ 2 Extreme Processor in the 775-Land Package
The overview and technical installation instructions below are for professional system integrators building PCs that use the boxed Intel® Core™ 2 Extreme processor with industry-accepted motherboards, chassis and peripherals. Product information can also be found in the processor Product Brief, Frequently Asked Questions and Selling Guide for each respective processor.
Table of Contents
The Boxed Intel® Desktop Processor- Processor Overview
- Boxed Processor Contents
- Boxed Intel® Processor Thermal Solution Operation
- Identifying a Boxed Processor
Section ContentsProcessor Overview
See the Product Brief for details on the performance enhancing features of the respective boxed Intel® processor. Additionally, see the following pages for additional steps required for enabling certain processor features:
Included with the Boxed Intel® Desktop Processor in the 775-land Package
- Intel® Core™2 Extreme Processor in the 775-land package
- Intel Designed Thermal Solution with support for Intel® QuietSystem Technology
- Thermal interface material (attached to the heatsink)
- Installation Instructions and Certificate of Authenticity
- Intel® Inside logo label
The boxed processor in the 775-land package refers to processors in the 775-land Flip-Chip Land Grid Array (FC-LGA4) package with an Integrated Heat Spreader (IHS) that aids in heat dissipation to a properly attached fan heatsink.
Figure 1. Intel® Core™2 Extreme Processor in the 775-land FC-LGA4 Package
| Figure 1. |
Top View |
Bottom View |
Boxed Intel® Processor Thermal Solution Operation
The Intel Core 2 Extreme processor has the fan thermistor disabled to allow maximum user flexibility. If the motherboard does not support 4-wire fan speed control the fan will spin at full speed. Two full speed options are supported. "Quiet Mode," limits fan speed to maintain maximum noise level below 35dBA. In, "Quiet Mode," operation the fan heatsink will meet or exceed thermal performance required for operating the processor at its rated frequency. "Performance Mode," allows maximum user flexibility in overspeed environments by permitting increased fan speeds.
The thermal solution has a DIP switch mounted on the side of the fan heatsink (see figure 2) which can be used to change the fan heatsink between Quiet Mode and Performance Mode. The switch is set to Quiet Mode by default.
Figure 2.The boxed Intel fan heatsink supports motherboard based fan speed control technology to take advantage of the fact that the processor is not always running at its maximum power. This isdone by basing the fan speed control on actual CPU temperature and power usage.
The speed of the new fan heatsink is controlled by the additional 4th wire of the fan cable. (The technology is sometimes referred to as "4-wire fan speed control".)
The additional 4th wire sends a signal from the motherboard to the fan heatsink to control its speed. There is a thermal diode in the processor which measures actual CPU temperature. The processor sends information to the motherboard about its specific thermal requirements and the actual processor temperature. The motherboard then uses this information to optimally control the speed of the processor fan.
Figure 3 shows the fan speed operation. The red line represents the maximum fan speed for "Performance Mode." The green line shows maximum fan speed for Quiet mode. The additional curves in blue represent fan operations at lower CPU temperature and power consumption levels based on the 4-wire fan speed control. If the motherboard based fan speed control is disabled or working improperly the fan will run at the maximum speed for Performance Mode or Quiet Mode respectively. Contact your motherboard manufacture to ensure 4-wire fan speed control is enabled.
Figure 3. Operation Of Boxed Processor Fan Heatsink
NOTE:
The acoustic benefits of the 4-wire based fan speed control may vary depending on the specific motherboard implementation. (The acoustic benefits are reliant on the motherboard implementation of fan speed control.)
Intel has recently developed a revolutionary motherboard based fan speed control included with Intel chipset based motherboards called Intel® Quiet System Technology (Intel® QST). This new technology uses a PID controller that can measure the rate of change of the processor temperature, thus predicting when the processor will reach its maximum temperature. If implemented correctly by the motherboard manufacturer, the control algorithm will operate the processor fan at minimum speed under most operating conditions. Since Intel® QST can predict when the processor will reach its maximum temperature, it will delay increasing the fan speed until just the right moment in order to keep the processor from exceeding its maximum temperature. Consult your motherboard manufacturer to see which motherboards they offer with support for Intel® QST.
A 4-wire fan does not guarantee a quieter system. If the processor is being used in a hot environment and under heavy loads, the fan will have to run fast enough to properly cool the processor. The internal chassis temperature is required to be maintained at 39°C or lower.
| Figure 4. Processor Box Label |
Larger View › |
Once the boxed processor is installed in a system, the fan heatsink covers the integrated heat spreader and all the markings on the processor. The label on the box of the boxed processor (that has the processor number, speed information, test specification, and lot number) should be photo copied and taped to the inside of the chassis for reference. This will allow quick access to the information that is no longer available on the top of the processor when the heatsink is installed. If a system's processor is later upgraded or replaced causing the photocopied information inside the chassis to have incorrect information, the photocopy should be replaced, removed or visibly marked as obsolete to avoid confusion.
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Section ContentsPlatform Component Selection
Motherboard Selection
Motherboards must specifically support the boxed Intel® Core™2 Extreme processor. In general, look for a motherboard which uses one of the following chipsets:
- Intel® X38 Express Chipset
- Intel® P35 Express Chipset
It is important to verify that the specific motherboard model and revision support the specific boxed Intel processor number being used. Motherboards may also require a BIOS update in order to support specific processors. Intel provides The Source Motherboard List for your convenience in choosing a suitable motherboard.
PCG
PCG is a processor power specification to help identify thermal solutions, power supplies, and chassis that will meet specific power requirements. The PCG mark can be found on the box label and engraved on the IHS of the processor. PCG information for a specific processor can be found at the Processor Spec Finder.
The PCG mark does not promise compatibility. The PCG mark specifies likely component compatibility with processor electrical requirements. Compatible chipset, BIOS, drivers, hardware, and operating system are required. Contact your hardware vendor for specific support of the respective boxed Intel® processor.
Fan Heatsink Support
The boxed processor includes a high quality unattached fan heatsink specifically designed to provide sufficient cooling to the boxed Intel processor when used in a suitable chassis environment. The fan power cable must be connected to the motherboard power header as shown in the processor installation notes (included in the boxed processor package).
The motherboard 4-pin header uses two pins to supply +12V (power) and GND (ground). The fan uses the third pin to transmit fan-speed information to motherboards. The fourth pin allows motherboards that support 4-wire fan-speed control to control the fan speed based on actual processor power consumption. The motherboard must have a 4-pin fan power header located close to the socket. Note: Refer to your motherboard manual for the location of the CPU fan power header.
Chassis Selection
Systems based on the boxed Intel® processor in the 775-land package must use a chassis that comply with the ATX specification (revision 2.2 or later) or microATX specification (revision 1.0 or later), depending on the motherboard form factor. Intel recommends system integrators using ATX form factor motherboards to choose a chassis that complies with the ATX specification (revision 2.2 or later). Likewise, system integrators using microATX form factor motherboards should choose a chassis that complies with the microATX specification (1.0 or later).
It is recommended to use a chassis on the Tested Chassis List to ensure proper chassis airflow, electrical support (ATX12V or SFX12V power supply), and compatibility with the respective boxed Intel processors using an Intel® Desktop Board. Chassis that pass this thermal testing provide system integrators with a starting place for determining which chassis to evaluate.
The internal chassis temperature for systems based on the boxed Intel® Core™ 2 Extreme processor in the 775-land package should not exceed 39°C when the chassis is used in a maximum expected room temperature of 35°C. Most chassis designed for the boxed Intel processor use extra internal chassis fans to improve airflow and many include ducting to bring cool air directly to the processor fan heatsink. Intel tests chassis with the boxed Intel processor and the Intel® Desktop Boards for minimum thermal requirements. These chassis meet Intel's processor specifications with the Intel Desktop Boards. It is strongly recommended that system integrators perform thermal testing on the chassis selected for each configuration of boxed Intel processor-based systems, even when using a chassis on the Tested Chassis List.
Power Supply Selection
Power supplies must comply with the ATX12V 2.2 design guidelines (see the Form Factors website for details) and supply additional current on the 12V power rail through a 2x2 connector. The Intel Core 2 Extreme processor requires a minumum of 8 Amps continuous and 13 Amps peak for 10ms on 12V2. All Intel Core 2 Extreme processor-based systems require either the standard 2x10, 20-pin ATX power connector or the new 24 pin ATX power connecter as well as the 2x2, 4-pin 12V connector. Each motherboard/platform may have additional requirements based on graphics cards, TV tunners, ADD2+, HDD, ODD, chassis fans, etc. Consult the motherboard and system componet documentation to determine additional power supply requirements. Intel tests power supplies to determine a minimum level of electrical compliance. Consult the Tested Power Supply List for more information.
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Section Contents
Integrating Systems Based on the boxed Intel processor ›
Integrating Boxed Intel® Processors in the 775-land PackageMotherboards supporting the boxed Intel Core 2 Extreme Processor include a manual with installation instructions. Consult this manual in addition to the boxed processor manual before building a boxed Intel processor-based system. The boxed Intel® Processor in the 775-land package integration video also shows the installation process using a boxed Intel Desktop Board (mechanical installation procedures are slightly different for the Intel Core 2 Extreme thermal solution). In addition, the following information can aid system integrators in successfully integrating a system based on the boxed Intel Core 2 Extreme processor in the 775-land package.
Installation Instructions
ATX Installation of the Boxed Intel® Core™2 Extreme Processor
Operating System Support
Nearly all modern operating systems designed for Intel Architecture have support for the boxed Intel® processor, although some may require specific versions or processor support files. Microsoft Windows Vista* and Microsoft Windows XP* (with SP2) support the Intel processor. Additionally, Linux* distributions offer support for the processor. Other vendors may have support for the Intel Core 2 Extreme Processor in their operating systems. System integrators should verify that the operating system they have selected supports the Intel Core 2 Extreme Processor.
Operating system support for Intel® 64 can be found in the Intel® 64 How to document.
Software Optimization
Applications optimized for multi-threading can benefit even more on the Intel Core 2 Extreme quad core processor. No additional optimizations are required.
With specific drivers that use the SSE4 instructions, graphics accelerators, audio hardware and software, and other system resources can experience substantial performance gain. Graphics card vendors typically highlight support changes with new driver releases. Download and install the latest drivers from the vendor's website. Also, verify that the driver version contains optimization for the Intel Core 2 Extreme Processor.
Many applications also take advantage of 64-bit computing with specific optimizations for the Intel Core Extreme processor. In order to take advantage of Intel 64, an entire hardware & software solution stack is required, ranging from processors and device drivers to operating systems, tools and applications. Contact your software vendor for available Intel 64 support.
System performance is greatly affected by proper operating system and driver installation processes. For example, it is important to install the latest Intel® Chipset Software Installation Utility immediately after installing most Microsoft operating systems to ensure proper drivers for the chipset are installed prior to installation of other drivers. System integrators should confirm boxed Intel Core 2 Extreme processor-based systems are optimally configured and integrated.
Conclusion
Boxed Intel processor-based systems require proper integration. System integrators that follow the guidelines in this document will experience higher customer satisfaction by providing higher quality systems.
1 Power savings from Enhanced Intel SpeedStep® technology may vary depending on system usage and design.
2 Enabling Execute Disable Bit functionality requires a PC with a processor with Execute Disable Bit capability and a supporting operating system. Check with your PC manufacturer on whether your system delivers Execute Disable Bit functionality.
3 Intel 64 requires a computer system with a processor, chipset, BIOS, operating system, device drivers and applications enabled for Intel 64. Processor will not operate (including 32-bit operation) without an Intel 64-enabled BIOS. Performance will vary depending on your hardware and software configurations. For more information including details on which processors support Intel 64 or consult with your system vendor for more information.
Copyright © 2007 Intel Corporation. All rights reserved. Intel, the Intel logo 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.