Intel® Desktop Board DP67BG Performance Tuning Guide Revision 1.
Intel Desktop Board DP67BG Performance Tuning Guide WARNING Altering clock frequency and/or voltage may (i) reduce system stability and useful life of the system and processor; (ii) cause the processor and other system components to fail; (iii) cause reductions in system performance; (iv) cause additional heat or other damage; and (v) affect system data integrity. Intel has not tested and does not warranty the operation of the processor beyond its specifications.
Intel DP67BG Desktop Board Performance Tuning Guide Contents 1 Introduction 1.1 Intel® Extreme Tuning Utility .............................................................. 5 2 2nd Generation Intel® Core™ Processor Family and Intel® P67 Express Chipset General Concepts 2.1 Architecture...................................................................................... 7 3 Intel Desktop Board DP67BG Performance Tuning Using BIOS Setup 3.1 Hardware Considerations for Performance Tuning ..................
Intel Desktop Board DP67BG Performance Tuning Guide 3.5.6 3.5.7 3.5.8 3.5.9 Reduce Voltage, Current, and Power ....................................... Restore Dynamic Voltage....................................................... Reconfigure the BIOS to Re-enable Interfaces .......................... Archive Performance Settings ................................................ 25 25 25 26 4 Performance Tuning Examples 4.1 4.5 GHz Processor Speed Using Turbo Ratios.......................................
Intel DP67BG Desktop Board Performance Tuning Guide 1 Introduction Performance tuning of Intel® Desktop Board DP67BG enables useful gains that can enhance overall system performance for gaming, video editing, computation, performance benchmarking, and other uses. Performance tuning can be done using the board BIOS or the Intel® Extreme Tuning Utility. The Intel Extreme Tuning Utility was developed for the user wanting performance benefits while minimizing their time and involvement in the tuning process.
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Intel DP67BG Desktop Board Performance Tuning Guide 2 2nd Generation Intel® Core™ Processor Family and Intel® P67 Express Chipset General Concepts 2.1 Architecture Intel Desktop Board DP67BG consists of the 2nd generation Intel Core processor family and the Intel P67 Express Chipset (the Platform Controller Hub (Intel P67 PCH)). The 2nd generation Intel Core processor family integrates the system memory controller and the PCI Express* x16 interface.
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Intel DP67BG Desktop Board Performance Tuning Guide 3 Intel Desktop Board DP67BG Performance Tuning Using BIOS Setup 3.1 Hardware Considerations for Performance Tuning 3.1.1 Processor In addition to Intel Desktop Board DP67BG, a processor that allows the desired level of performance tuning by the user is required. Performance tuning capability with the 2nd generation Intel Core processor family is dependent on the selected processor.
Intel Desktop Board DP67BG Performance Tuning Guide 3.1.4 System Cooling Performance tuning results in additional system heat generation. Increased cooling capability may be required to allow performance tuning and operation of a performance tuned system while maintaining stable operation. Considerations for increasing cooling capability may include, but are not limited to, chassis type, selection of air or liquid cooling, processor cooler design, memory module design, and overall system airflow.
Intel DP67BG Desktop Board Performance Tuning Guide The log will also be convenient for entering parameters if profiles will be setup using the Intel Extreme Tuning Utility. The user may have different performance setting profiles that are needed, depending on the software applications being run. The Intel Desktop Board DP67BG BIOS supports a single profile.
Intel Desktop Board DP67BG Performance Tuning Guide the user’s parameter changes do not restore system stability, the watchdog timer will again intervene and allow the user another opportunity to adjust the BIOS settings. The watchdog timer works in most, but not all cases. If the watchdog timer did not detect an issue or was disabled by the user, then one of the alternate recovery options described in Sections 3.4.2 through 3.4.4 can be used. Figure 3.1.
Intel DP67BG Desktop Board Performance Tuning Guide Figure 3.2. Screen Displayed When System is Started With the Back to BIOS Button Depressed 3.4.3 BIOS Configuration Jumper A third recovery option is to use the BIOS configuration jumper that is provided on the board to allow the user to force the board to boot to BIOS Setup in a safe mode. The user will need to open their system chassis to access this jumper.
Intel Desktop Board DP67BG Performance Tuning Guide 3.5 Intel Desktop Board DP67BG Performance Tuning Process There are various sequences of steps possible for doing board performance tuning. The approach presented in this guide is a general starting point, but may not be optimal for all cases. Performance tuning is an iterative process. The settings made for a parameter may affect which settings will work for another parameter.
Intel DP67BG Desktop Board Performance Tuning Guide Figure 3.3. System Setup Leave Enhanced Intel SpeedStep® Technology and CPU C States enabled in the BIOS as shown in Figure 3.4. Turbo ratios require Enhanced Intel SpeedStep Technology enabled in order to function. Disabling C states prevents the processor from entering 1, 2, or 3 core ratios. Only the 4 core ratio will have an effect when C states are disabled.
Intel Desktop Board DP67BG Performance Tuning Guide Figure 3.4. Power Settings Performance tuning options are located in the menu section labeled “Performance”. Reading and agreeing to the disclaimer by selecting “Yes”, as shown in Figure 3.5, allows the detailed BIOS performance menu to be displayed.
Intel DP67BG Desktop Board Performance Tuning Guide Figure 3.5. Performance Tuning Disclaimer From the Performance page, processor tuning options are under the “Processor Overrides” section shown in Figure 3.6 below. Also see Appendix A for a table summarizing these settings and their effects. Sections 3.5.1.1 through 3.5.1.8 include guidelines for setting the processor override parameters.
Intel Desktop Board DP67BG Performance Tuning Guide Figure 3.6. Processor Overrides Page Showing Defaults 3.5.1.1 CPU Voltage Override Type For CPU Override Type, select Static. This setting prevents dynamic adjustments that could confuse tuning efforts. Later in the tuning procedure, the dynamic setting can be restored if it does not result in thermal throttling of the processor. 3.5.1.2 CPU Voltage Override On the CPU Voltage Override, increase the voltage setting.
Intel DP67BG Desktop Board Performance Tuning Guide processor voltage regulator. If the processor voltage regulator gets too hot, it will throttle (reduce the frequency of the processor) and greatly diminish performance. 3.5.1.5 Intel® Turbo Boost Technology Ensure that Intel® Turbo Boost Technology is set to Enable. 3.5.1.6 Burst Mode Set burst mode to enable. Disabling burst mode will cause the processor to set the burst mode to a specified default power limit of the installed processor.
Intel Desktop Board DP67BG Performance Tuning Guide For the default host clock setting of 100 MHz, Table 3-1 shows the resulting processor frequency with various multiplier values. Table 3-1. Resulting CPU Frequency Values for Various Multipliers Multiplier Resulting CPU Core Frequency (GHz) 35 3.50 36 3.60 37 3.70 38 3.80 39 3.90 40 4.00 41 4.10 42 4.20 43 4.30 44 4.40 45 4.50 46 4.60 47 4.70 48 4.80 49 4.90 50 5.00 3.5.
Intel DP67BG Desktop Board Performance Tuning Guide subsystem has become unstable so you know which group of performance parameters to revise. Revising processor parameters will not restore stability if memory settings are actually causing the instability. If processor temperature is steadily increasing or processor throttling is occurring during stress testing then additional tuning or improved cooling is needed.
Intel Desktop Board DP67BG Performance Tuning Guide Figure 3.8. BIOS Screen Showing System Clock Frequency Increased to 105 MHz NOTE The multipliers for the processor were left unchanged from the default of 38 and only the host clock frequency was increased. Since the speeds of the other board subsystems are derived from the host clock, the memory speed will be increased as well. This increase may require memory setting adjustments to restore stability. Consult Section 3.5.
Intel DP67BG Desktop Board Performance Tuning Guide concurrently. When installing memory, insert memory in the blue DIMM sockets first. If more than two memory modules will be installed, install the additional memory in the black DIMM sockets. 3.5.5.1 XMP Memory Profiles Although each memory parameter can be modified individually, the easiest method of optimizing performance is to use memory that supports Extreme Memory Profiles (XMP).
Intel Desktop Board DP67BG Performance Tuning Guide 3.5.5.2 Memory Performance Options The Memory Configuration BIOS page contains all the memory timing options that can be adjusted. NOTE For each of the timings, except the multipliers, lower number settings correspond with higher performance and potential memory system instability. Figure 3.10. Memory Configuration Screen 3.5.5.
Intel DP67BG Desktop Board Performance Tuning Guide Example: If the host clock frequency was increased by 1% and a multiplier of 8 was being used then the new memory frequency would be (8) * (1.01) * (133.3 MHz) = 1077 MHz For the default 133.3 MHz memory clock, the resulting memory frequency with various multipliers is shown in Table 3-2. Table 3-2. Resulting Memory Frequency Values for Various Multipliers Multiplier Resulting Memory Frequency (MHz) 8 1066 10 1333 12 1600 14 1866 16 2133 3.5.
Intel Desktop Board DP67BG Performance Tuning Guide 3.5.9 Archive Performance Settings The Intel Desktop Board DP67BG BIOS allows storing one set of parameter settings (profile) at any given time. If several groups of performance settings are needed by the user, the Intel Extreme Tuning Utility allows storing multiple profiles as shown in Figure 3.11. Performance parameter settings can be entered into the Intel Extreme Tuning Utility using Manual mode.
Intel DP67BG Desktop Board Performance Tuning Guide 4 Performance Tuning Examples 4.1 4.5 GHz Processor Speed Using Turbo Ratios Figure 4.1 shows the BIOS settings to achieve a processor speed of 4.5 GHz. The system clock has been left at the default value of 100 MHz. XMP profiles were used to obtain a memory speed of 1600 MHz. Figure 4.1. 4.5 GHz Processor Speed Using Turbo Ratios 4.2 4.72 GHz Processor Speed Using Turbo Ratios and System Clock Changes Figure 4.
Intel Desktop Board DP67BG Performance Tuning Guide Figure 4.2. 4.72 GHz Processor Speed Using Turbo Ratios with a 105 MHz System Clock Setting Figure 4.3. Intel Extreme Tuning Utility Screen Showing CPU Stress Test Running with 4.
Intel DP67BG Desktop Board Performance Tuning Guide A Parameter Descriptions for BIOS Performance Settings Table A-1. BIOS Performance Settings Setup Option Description Static CPU Voltage Override Type Overrides the voltage requested by the processor and allows a user selected CPU Static Voltage to be applied at all times. This option disables the dynamic voltage control of the processor.
Intel Desktop Board DP67BG Performance Tuning Guide 30 Setup Option Description Internal PLL Voltage Override This is an advanced setting that will slightly increase the internal CPU PLL Voltage for more aggressive overclock frequencies. Note: This setting may impact S3 functionality. 4-Core Ratio Limit Sets the core multiplier to be used when four processor cores are in use. 3-Core Ratio Limit Sets the core multiplier to be used when three processor cores are in use.
Intel DP67BG Desktop Board Performance Tuning Guide B Parameter Descriptions for Memory Performance Settings NOTE All multiplier values listed in Table B- are applied to the single 100 MHz (default) host clock. Table B-1. Memory Performance Settings Setup Option Description Performance Memory Profiles Automatic setting uses specification compliant values provided by the memory module. Memory Multiplier Allows selection of memory speed from a list of choices.
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