User manual MSI MS-7383 V1.0

[. . . ] G31M2 Series MS-7383 ( V1. X / V2. X ) Mainboard 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. [. . . ] IOAPIC Function This field is used to enable or disable the APIC (Advanced Programmable Interrupt Controller). Due to compliance with PC2001 design guide, the system is able to run in APIC mode. Enabling APIC mode will expand available IRQ resources for the system. 3-9 M S-7383 M ainboard MPS Table Version This field allows you to select which MPS (Multi-Processor Specification) version to be used for the operating system. You need to select the MPS version supported by your operating system. To find out which version to use, consult the vendor of your operating system. CPU Feature Press <Enter> to enter the sub-menu and the following screen appears: Hyper-Threading Technology This field appears only when the CPU supports Hyper-Threading. The processor uses Hyper-Threading technology to increase transaction rates and reduces end-user response times. The technology treats the two cores inside the p roc es s or as t wo logi c al pr oc es s ors t h at c an exec ut e i ns t ru c t i on s simultaneously. In this way, the system performance is highly improved. If you dis able the f unction, the processor will use only one c ore to execute the instructions. Execute Bit Support Intel's Execute Disable Bit functionality can prevent certain classes of malicious "buffer overflow" attacks when combined with a supporting operating system. This functionality allows the processor to classify areas in memory by where application code can execute and where it cannot. W hen a malicious worm attempts to insert code in the buffer, the processor disables code execution, preventing damage or worm propagation. Set Limit CPUID MaxVal to 3 The Max CPUID Value Limit is designed to limit the listed speed of the processor to older operating systems. Chipset Feature Press <Enter> to enter the sub-menu and the following screen appears: HPET The HPET (High Precision Event Timers) is a component that is part of the chipset. You can to enable it, and will provide you with the means to get to it via the various ACPI methods. 3-10 BIOS Setup VGA Share Memory Size The system shares memory to the onboard VGA card. This setting controls the exact memory size shared to the VGA card. DVMT Mode Select This item allows you to set the mode for the graphics core. . [Fixed Mode], a fixed-size fragment of the system memory is allocated to the graphics core. It can only be used by the graphics core. [DVMT Mode], the driver of the graphics core uses the system memory like any other OS component or application does. DVMT/FIXED Memory Specify the size of DVMT memory to allocate for video memory. [. . . ] 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. B-6 Dual Core Center Voltage In the Voltage sub-menu, you can see voltage status (including Vcore, memory, GPU voltage. . . [. . . ]