Dell PowerEdge R650 EMC BIOS and UEFI Reference Guide - Page 9

Table 5. Processor Settings details (continued) Option Intel SST-CP x2APIC Mode AVX ICCP Pre-Grant License AVX ICC Pre-Grant Level Dell Controlled Turbo Dell Controlled Turbo Settings Dell AVX Scaling Technology Optimizer Mode Number of Cores per Processor Processor Core Speed Processor Bus Speed Local Machine Check Exception Description Enables Intel SST-CP. This option is displayed if Performance Per Watt (operating system) or Custom (when OSPM is enabled) system profiles are selected. This option is displayed and selectable for each system profile mode. Thsi option is set to Disabled by default. Enables or disables x2APIC mode. This option is set to Enabled by default. NOTE: For two processors 64 cores configuration, x2APIC mode is not switchable if 256 threads are enabled (BIOS settings: All CCD, cores and logical processors enabled). Enables or disables AVX ICCP Pre-Grant License. This option is set to Disabled by default. Enables you to select between the different AVX ICC transition levels offered by Intel. This option is set to 128 heavy by default. Controls the turbo engagement. Enable this option only when System Profile is set to Performance or Custom, and CPU Power Management is set to Performance. This item can be selected for each system profile mode. This option is set to Disabled by default. NOTE: Depending on the number of installed processors, there might be up to two processor listings. Enables you to configure the Dell AVX scaling technology. This option is set to 0 by default. Enter the value from 0 to 12 bins. The value entered decreases the Dell AVX Scaling Technology frequency when the Dell controlled Turbo feature is enabled. Enables or disables the CPU performance. When this option is set to Auto, sets the CPU Power Management to Max Performance. When set to Enabled, enables the CPU Power Management settings. When set to Disabled, the CPU Power Management option is disabled. This option is set to Auto by default. Controls the number of enabled cores in each processor. This option is set to All by default. Specifies the maximum core frequency of the processor. Specifies the bus speed of the processor. NOTE: The processor bus speed option displays only when both processors are installed. Enables or disables the local machine check exception. This is an extension of the MCA Recovery mechanism providing the capability to deliver Uncorrected Recoverable (UCR) Software Recoverable Action Required (SRAR) errors to one or more specific logical processor threads receiving previously poisoned or corrupted data. When enabled, the UCR SRAR Machine Check Exception is delivered only to the affected thread rather than broadcast to all threads in the system. The feature supports operating system recovery for cases of multiple recoverable faults detected in close proximity, which would otherwise result in a fatal machine check event. The Pre-operating system management applications 9