User manual INTEL DESKTOP BOARD DP67BG

[. . . ] Intel® Desktop Board DP67BG Performance Tuning Guide Revision 1. 0 December 2010 Order Number: G24387-001 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. WARNING Altering PC memory frequency and/or voltage may (i) reduce system stability and useful life of the system, memory 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 assumes no responsibility that the memory included, if used with altered clock frequencies and/or voltages, will be fit for any particular purpose. Check with the memory manufacturer for warranty and additional details. INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL® PRODUCTS. [. . . ] A full processor and memory tuning sequence consists of the steps suggested below. Depending on your objectives, it may not be necessary to complete all of the steps in this sequence. More discussion about these steps is included in Sections 3. 5. 1 through 3. 5. 9. Checking system stability appears frequently during this sequence. This check ensures that the work done up to that point will provide stable system performance. If instability is encountered, the source of the problem can be more easily determined if regular stability checks have been completed. Configure the BIOS for performance tuning. Re-enable dynamic and burst mode (if possible). Reconfigure the BIOS to enable interfaces. Archive performance settings. 3. 5. 1 Configure the BIOS for Performance Tuning It is recommended that non-essential interfaces (such as, onboard audio, USB, LAN, external SATA, etc. ) be disabled when performance tuning to simplify the process. Once the performance parameters have been optimized, the onboard features can be re-enabled. Scroll to “Configuration” > “On-Board Devices” and use the submenus to disable these features (refer to Figure 3. 3). NOTE Do not disable the USB port where the keyboard is connected. 14 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. 15 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. 16 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. 17 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. [. . . ] Note: This setting will be ignored if a Static CPU Voltage Override is selected. TDC Current Limit Override Maximum NonTurbo Ratio CPU Idle State Intel® Turbo Boost Technology Burst Mode Burst Mode Power Limit (Watts) Sustained Mode Time Sustained Mode Power Limit (Watts) CPU Turbo Voltage Offset 29 Intel Desktop Board DP67BG Performance Tuning Guide Setup Option Internal PLL Voltage Override 4-Core Ratio Limit 3-Core Ratio Limit 2-Core Ratio Limit 1-Core Ratio Limit Description 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. Sets the core multiplier to be used when four processor cores are in use. Sets the core multiplier to be used when three processor cores are in use. [. . . ]