Dell VxRail VD-4510c Hardware Requirements and Specifications

1. To view the Processor Settings screen, power on the system, and press F2.
2. Click System Setup Main Menu > System BIOS > Processor Settings.
3. Use the following table to configure the processor:

   Option	Description
   Logical Processor	Each processor core supports up to two logical processors. If this option is set to Enabled (default), the BIOS displays all the logical processors. If this option is set to Disabled, the BIOS displays only one logical processor per core.
   Virtualization Technology	Enables (default) or disables the virtualization technology for the processor.
   Directory Mode	Enables (default) or disables the directory mode.
   Kernel DMA Protection	Disabled by default. It is enabled for Secure Launch (Firmware Protection) support on Windows 2022.
   Adjacent Cache Line Prefetch	Enables (default) or disables the optimization of the system for applications that need high use of sequential memory access. You can disable this option for applications that need high use of random memory access.
   Hardware Prefetcher	Enables (default) or disables the hardware prefetcher.
   DCU Streamer Prefetcher	Enables (default) or disables the Data Cache Unit (DCU) streamer prefetcher.
   DCU IP Prefetcher	Enables (default) or disables the DCU IP prefetcher.
   Sub NUMA Cluster	Enables or disables (default) the Sub NUMA Cluster.
   MADT Core Enumeration	Specifies the MADT Core Enumeration. This option is set to default in Round Robin. Linear option supports industry core enumeration whereas, Round Robin option supports Dell optimized core enumeration.
   UPI Prefetch	Enables you to get the memory read started early on DDR bus. The Ultra Path Interconnect (UPI) Rx path spawns the speculative memory that is read to Integrated Memory Controller (iMC) directly. This option is set to Disabled by default.
   XPT Prefetch	This option is set to Enabled by default.
   LLC Prefetch	Enables or disables the LLC Prefetch on all threads. This option is set to Enabled by default.
   Dead Line LLC Alloc	Enables or disables the Dead Line LLC Alloc. This option is set to Enabled by default. You can enable this option to enter the dead lines in LLC or disable the option to not enter the dead lines in LLC.
   Directory AtoS	Enables or disables the Directory AtoS. AtoS optimization reduces remote read latencies for repeat read accesses without intervening writes. This option is set to Disabled by default.
   Logical Processor Idling	Enables you to improve the energy efficiency of a system. It uses the operating system core parking algorithm and parks some of the logical processors in the system, which in turn allows the corresponding processor cores to transition into a lower power idle state. This option can only be enabled if the operating system supports it. It is set to Disabled by default. NOTE:This feature is not supported if CPU Power Management is set to Maximum Performance.
   AVX P1	Enables you to reconfigure the processor Thermal Design Power (TDP) levels during POST based on the power and thermal delivery capabilities of the system. TDP verifies the maximum heat the cooling system is must dissipate. This option is set to Normal by default. NOTE: This option is only available on certain SKUs of the processors.
   Intel SST-CP	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. This option is set to Disabled by default.
   x2APIC Mode	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).
   AVX ICCP Pre-Grant License	Enables or disables AVX ICCP Pre-Grant License. This option is set to Disabled by default.
   Dell Controlled Turbo
   Dell Controlled Turbo Settings	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.
   Number of Cores per Processor	Controls the number of enabled cores in each processor. This option is set to All by default.
   CPU Physical Address Limit	Limit CPU physical address to 46 bits to support older Hyper-V. If enabled, automatically disables TME-MT. This option is set to Enabled by default.
   Processor Core Speed	Specifies the maximum core frequency of the processor.
   Local Machine Check Exception	Enables or disables (default) 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 processors 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 that are detected close, which would otherwise result in a fatal machine check event. The feature is available only on Advanced RAS processors.
   Processor 1	The following settings are displayed for processor 1:

The following table describes the settings available for the processor: