User manual INTEL DESKTOP BOARD DX58OG

[. . . ] NO LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. EXCEPT AS PROVIDED IN INTEL’S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS, INTEL ASSUMES NO LIABILITY WHATSOEVER, AND INTEL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY, RELATING TO SALE AND/OR USE OF INTEL PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. Intel products are not intended for use in medical, life saving, or life sustaining applications. Intel may make changes to specifications and product descriptions at any time, without notice. [. . . ] It may be necessary to reduce the memory speed to restore memory stability. This can be done in the Performance Memory Profiles submenu by selecting Manual – User Defined and then scrolling down to the memory multiplier. The memory frequency can be reduced by selecting a lower memory multiplier value. If you have compatible XMP based memory, an XMP profile can be selected from the Memory settings BIOS subpage under the performance settings. Note that XMP profile memory frequencies will also be increased when the host clock frequency is increased. See http://www. intel. com/consumer/game/extreme-memory. htm for more information on XMP memory. Press the F10 key when you are ready to save settings and exit BIOS. The system will automatically attempt reboot with the new performance settings enabled. If the system fails to boot, see Section 3. 4 on recovering from an unstable system. 3. 5. 3 Detailed Performance Tuning Process Steps 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. Intel Desktop Board DX58SO2 and Intel Desktop Board DX58OG allow performance tuning using the host clock, turbo ratios, or a combination of both. Processor Overrides BIOS Screen Showing Default Settings with an Intel Core i7-990X Extreme Edition Processor Installed 3. 5. 3. 2. 1 Processor Voltage Override Type For CPU Override Type, select Static. This setting prevents dynamic adjustments that could confuse tuning efforts. At the end of the tuning procedure, this setting can be changed to dynamic for more energy efficient operation. 3. 5. 3. 2. 2 Processor Voltage Override At the CPU Voltage Override, increase the voltage setting. This needs to be done to provide the extra voltage to support performance tuning. The amount of voltage increase needed depends on the amount of performance increase that is desired. The objective is to provide just enough voltage so the processor can sustain the desired level of performance. Use the voltage provided in the simplified tuning procedures described in Section 3. 5. 1 or Section 3. 5. 2, as a starting point. Note that high voltage settings may potentially cause processor damage. At the end of the tuning process, the voltage will be reduced to the lowest level that provides stability. 20 Intel DX58SO2/DX58OG Desktop Board Performance Tuning Guide 3. 5. 3. 2. 3 Processor VR Droop Control Set Processor VReg Droop Control to Low V-droop (Performance) if you are attempting to maximize processor performance. If you are attempting moderate performance increases, then the Mid or the High V-droop (Power Saving) selection is acceptable. [. . . ] Sets the core multiplier to be used when two processor cores are in use. Sets the core multiplier to be used when one processor core is in use. This setting allows the user to increase the voltage to the IOH. Allows the QPI data rate to be selected. [. . . ]