User manual MSI K9N2 DIAMOND V1.0

[. . . ] K9N2 Diamond Series MS-7375 (v1. X) Mainboard G52-73751X1 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. [. . . ] DCT Unganged Mode (For AM 2+ CPU only) This mainboard supports dual-channel DRAM mode. W hen this is enabled, you can set different DRAM timing for these two channels. This item will appear when you install the CPU which supports unganged mode. 3-20 BIOS Setup SLI-Ready Memory Setting the item to [Auto] upgrades the memory module performance automatically when you install a pair of EPP (Enhanced Performance Profiles)-enabled memory modules. FSB/DRAM Ratio This setting controls the ratio of CPU FSB Clock & DRAM Frequency to enable the CPU FSB & DRAM to run at different frequency combinations (non-synchronous overclocking). Please note that the setting options vary according to the CPU FSB Clock preset. Adjust PCI-E Frequency (MHz) This field allows you to select the PCI Express frequency (in MHz). Adjusted DRAM Frequency (M Hz) This item shows the adjusted DRAM frequency. HT Configuration Press <Enter> to enter the sub-menu and the following screen appears. SB to AM2 FreqAuto Selecting [Disabled] allows users to configure the frequency (from SB to CPU) and the following related items manually. SB to AM 2 Freq This field selects the frequency from SB to CPU. SB to AM 2 Link This field selects the bandwidth from SB to CPU. Auto Disabled PCI Frequency W hen set to [Enabled], the system will remove (turn off) clocks from empty PCI slots to minimize the electromagnetic interference (EMI). CPU Voltage (V) This item allows you to increase the CPU voltage. DRAM Voltage (V) Adjusting the voltage can increase the memory speed. 3-21 M S-7375 M ainboard NB Voltage (V) Adjust the North Bridge chipset voltage. HT Link Voltage (V) Adjust the Hyper-Transport link voltage. Spread Spectrum This setting is used to enable or disable the Spread Spectrum feature. W hen overclocking, always set it to [Disabled]. Important 1. If you do not have any EMI problem, leave the setting at [Disabled] for optimal system stability and performance. But if you are plagued by EMI, select the value of Spread Spectrum for EMI reduction. The greater the Spread Spectrum value is, the greater the EMI is reduced, and the system will become less stable. For the most suitable Spread Spectrum value, please consult your local EMI regulation. Remember to disable Spread Spectrum if you are overclocking because even a slight jitter can introduce a temporary boost in clock speed which may just cause your overclocked processor to lock up. 3-22 BIOS Setup USER SETTINGS Save Settings 1/2 Select this item and press "Enter" to save any changes you have made to your current settings. Load Settings 1/2 Select this item and press "Enter" to load settings from the store. 3-23 X-Fi Xtreme Audio Card Appendix A X-Fi Xtreme Audio Card The X-Fi Xtreme Audio card is powered by Creative CA0110 Audio chip. [. . . ] If you do not want to apply the adjustments, click the Cancel button to cancel. Or click the Default button to restore the default values. On the underside, it shows the graphs of the clocks. Only the curves of the item which the button is lit up with red color will be shown. Important In the user profile, clicking the Save button can save the changes to it. In the default profile, the Save button is not available. D-7 M S-7375 M ainboard Voltage In the Voltage sub-menu, you can see voltage status (including Vcore, memory, GPU voltage. . . [. . . ]