Asus P9D-X User Guide - Page 71

Hyper-threading [Enabled] Allows you to enable or disable the Intel Hyper-Threading Technology function. Configuration options: [Enabled] [Disabled] Active Processor Cores [All] Allows you to choose the number of CPU cores to activate in each processor package. Configuration options: [All] [1] [2] [3] Execute Disable Bit [Enabled] Allows you to enable or disable the XD feature that can prevent certain classes of malicious buffer overflow attacks when combined with a supporting OS. Configuration options: [Enabled][Disabled] Intel Virtualization Technology [Enabled] Allows you to utilize the additional hardware capabilities provided by Vanderpool Technology. Configuration options: [Enabled] [Disabled] Hardware Prefetcher [Enabled] Allows you to enable or disable the Mid Level Cache (L2) streamer. Configuration options: [Enabled] [Disabled] Adjacent Cache Line Prefetch [Enabled] Allows you to enable or disable the Mid Level Cache (L2) prefetching of adjacent cache lines. Configuration options: [Enabled] [Disabled] CPU AES [Enabled] Allows you to enable or disable the CPU Advance Encryption Standard instructions. Configuration options: [Disabled] [Enabled] Boot performance mode [Turbo Performance] This item allows you to select the performance state that the BIOS will set before OS handoff. Configuration options: [Max Non-Turbo Performace] [Max Battery] [Turbo Performance] EIST [Enabled] Allows you to enable or disable the Enhanced Intel SpeedStep Technology (EIST). Configuration options: [Enabled] [Disabled] Turbo Mode [Enabled] This item appears only when you set the EIST item to [Enabled]. This allows you to enable or disable the Intel® Turbo Mode Technology. Configuration options: [Enabled] [Disabled] Energy Performance [Performance] Allows you to optimize between performance and power savings. Configuration options: [Performance] [Balanced Performance] [Balanced Energy] [Energy Efficient] ASUS P9D-X 4-13