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. [. . . ] 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. Setting options are: [Internal], [PCI] and [PCI-E]. 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. For better PCI performance, you should set the item to higher values. 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. 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. 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. [. . . ] Enable auto popup dialogue, when device has been plugged in Once this item checked, the dialog "Connected device" would automatically pop up when device plugged in. B-13 M S-7392 M ainboard S/PDIF (optional, for HDMI graphics card only) Short for Sony/Philips Digital Interface, a standard audio file transfer format. S/PDIF allows the transfer of digital audio signals from one device to another without having to be converted first to an analog format. Maintaining the viability of a digital signal prevents the quality of the signal from degrading when it is converted to analog. Output Sampling Rate 44. 1KHz: This is recommend while playing CD. 48KHz: This is recommended while playing DVD or Dolby. [. . . ]