ASRock 775i65PE User Manual - Page 25
Chipset Configuration
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Ratio Actual Value This is a read-only item, which displays the ratio actual value of this motherboard. CPU Thermal Throttling You may select [Enabled] to enable P4 CPU internal thermal control mechanism to keep the CPU from overheated. Hyper Threading Technology To enable this feature, it requires a computer system with an Intel Pentium®4 processor that supports Hyper-Threading technology and an operating system that includes optimization for this technology, such as Microsoft® Windows® XP. Set to [Auto] if using Microsoft® Windows® XP, or Linux kernel version 2.4.18 or higher. This option will be hidden if the installed CPU does not support Hyper-Threading technology. No-Excute Memory Protection No-Execution (NX) Memory Protection Technology is an enhancement to the IA32 Intel Architecture. An IA-32 processor with "No Execute (NX) Memory Pro tection" can prevent data pages from being used by malicious software to execute code. This option will be hidden if the current CPU does not support NoExcute Memory Protection. Max CPUID Value Limit For Prescott CPU only, some OSes (ex. NT4.0) cannot handle the function with disable. This should be enabled in order to boot legacy OSes that cannot support CPUs with extended CPUID functions. 3.3.2 Chipset Configuration BIOS SETUP UTILITY Advanced Chipset Configuration Bypass Access [Off] DRAM Frequency [Auto] Flexibility Option [Disabled] Configure DRAM Timing by SPD [Disabled] DRAM CAS# Latency [Auto] DRAM RAS# Precharge [4 Clocks] DRAM RAS# to CAS# Delay [4 Clocks] DRAM Precharge Delay [8 Clocks] DRAM Burst Length [4] Memory Hole Init. Graphic Adapter Priority Graphics Aperture Size [Disabled] [PCI / AGP] [64MB] OnBoard LAN OnBoard AC'97 Audio [Enabled] [Auto] Options 133MHz 166MHz 200MHz Auto (DDR266) (DDR333) (DDR400) +F1 F9 F10 ESC Select Screen Select Item Change Option General Help Load Defaults Save and Exit Exit v02.54 (C) Copyright 1985-2003, American Megatrends, Inc. Bypass Access This technology can provide users with the function of increasing the system performance. The default value is [Off]. It will only work when you use FSB800 CPU and DDR400 DRAM at the same time; otherwise, this option will be hidden. 25