User manual MSI P7N SLI V1.0

[. . . ] P7N SLI Series MS-7380 (v1. X) Mainboard G52-73801X5 i Copyright Notice T he material in this doc ument is the intellec tual property of M ICRO-STAR INTERNATIONAL. We take every care in the preparation of this document, but no guarantee is given as to the correctness of its contents. Our products are under continual improvement and we reserve the right to make changes without notice. Trademarks All trademarks are the properties of their respective owners. NVIDIA, the NVIDIA logo, DualNet, and nForce are registered trademarks or trademarks of NVIDIA Corporation in the United States and/or other countries. [. . . ] Usually the Dynamic Overclocking Technology will be powered only when users' PC need to run huge amount of data like 3D games or the video process, and the CPU frequency need to be boosted up to enhance the overall performance. [Colonel] 4th level of overclocking, increasing the frequency by 7%. 3-18 BIOS Setup [General] [Commander] 5th level of overclocking, increasing the frequency by 10%. 6th level of overclocking, increasing the frequency by 15%. Important Even though the Dynamic Overclocking Technology is more stable than manual overclocking, basically, it is still risky. We suggest user to make sure that your CPU can afford to overclocking regularly first. If you find the PC appears to be unstable or reboot incidentally, it's better to disable the Dynamic Overclocking or to lower the level of overclocking options. By the way, if you need to conduct overclocking manually, you also need to disable the Dynamic OverClocking first. Intel EIST The Enhanced Intel SpeedStep technology allows you to set the performance level of the microprocessor whether the computer is running on battery or AC power. This field will appear after you installed the CPU which support speedstep technology. System Clock Mode This item is used to switch the following two items. FSB Clock (MHz) W hen the System Clock Mode sets to [Manual], the field is adjustable. This item allows you to select the CPU Front Side Bus clock frequency (in MHz). Memory Clock (M Hz) W hen the System Clock Mode sets to [Manual], the field is adjustable. This item allows you to select the memory clock frequency (in MHz). Advance DRAM Configuration Press <Enter> to enter the sub-menu and the following screen appears. M emory Timings This field has the capacity to automatically detect all of the DRAM timing. If you set this field to [Manual], some fields will appear and selectable. 3-19 M S-7380 M ainboard CAS Latency(CL) W hen the Memory Timings sets to [Manual], the field is adjustable. This controls the CAS latency, which determines the timing delay (in clock cycles) before SDRAM starts a read command after receiving it. tRCD W hen the M emory Timings sets to [Manual], the field is adjustable. W hen DRAM is refreshed, both rows and columns are addressed separately. This setup item allows you to determine the timing of the transition from RAS (row address strobe) to CAS (column address strobe). tRP W hen the M emory Timings sets to [Manual], this field is adjustable. This setting controls the number of cycles for Row Address Strobe (RAS) to be allowed to precharge. If insufficient time is allowed for the RAS to accumulate its charge before DRAM refresh, refresh may be incomplete and DRAM may fail to retain data. This item applies only when synchronous DRAM is installed in the system. tRAS W hen the M emory Timings sets to [Manual], this field is adjustable. [. . . ] By the way, if you need to conduct overclocking manually, please do not to apply the DOT function. C-5 M S-7380 M ainboard Clock In the Clock sub-menu, you can see clock status (including FSB/ CPU clock of mainboard and GPU/ memory clock of graphics card) of your system. There will be several items for you to select for overclocking after you click button. You can click the plus sign button to increase the clock, or click the minus sign button to decrease the clock. If you do not want to apply the adjustments, click the Cancel button to cancel. [. . . ]