User manual MSI P31 NEO V1.0

[. . . ] P31 Neo V2 Series MS-7392 (V1. X) Mainboard G52-73921XD 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. 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. 3-9 M S-7392 M ainboard Primary Graphic's Adapter This setting specifies which graphic card is your primary graphics adapter. PCI Latency Timer This item controls how long each PCI device can hold the bus before another takes over. W hen set to higher values, every PCI device can conduct transactions for a longer time and thus improve the effective PCI bandwidth. CPU Feature Press <Enter> to enter the sub-menu and the following screen appears: Hyper-Threading Function The processor uses Hyper-Threading technology to increase transaction rates and reduces end-user response times. The technology treats the two cores inside the processor as two logical processors that can execute instructions simultaneously. If you dis able the f unction, the processor will use only one c ore to execute the instructions. Please disable this item if your operating system doesn't support HT Function, or unreliability and instability may occur. 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 M axVal 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: 3-10 BIOS Setup 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. Boot Sequence Press <Enter> to enter the sub-menu and the following screen appears: 1st/ 2nd/ 3rd Boot Device The items allow you to set the first/ second/ third boot device where BIOS attempts to load the disk operating system. Boot From Other Device Setting the option to [Yes] allows the system to try to boot from other device. if the system fails to boot from the 1st/ 2nd/ 3rd boot device. 3-11 M S-7392 M ainboard Integrated Peripherals USB Controller This setting allows you to enable/ disable the onboard USB controller. USB Device Legacy Support Select [Enabled] if you need to use a USB-interfaced device in the operating system. [. . . ] Tool - Show the following volume controls This is to let you freely decide which volume control items to be displayed. - Advanced controls - Enable playback multi-streaming W ith this function, you will be able to have an audio chat with your friends via headphone (stream 1 from front panel) while still have music (stream 2 from back panel) in play. At any given period, you can have maximum 2 streams operating simultaneously. B-10 Realtek ALC888 Audio 4. Recording control Tool Mute Recording device -Realtek HDA Primary input -Mic in at front panel (Green) M u te You may choose to mute single or multiple volume controls or to completely mute sound input. [. . . ]