Dell APEX Cloud Platform MC-760 Hardware Requirements and Specifications

Processor settings

1. To access the Processor Settings screen, power on the system and press F2.
2. Click System Setup Main Menu, System BIOS, and then Processor Settings. The following table describes the available options.

   Table 1. Processor Settings detailsThis table describes the options within the Processor Settings.

   Option	Description
   Logical Processor	Each processor core supports up to two logical processors. If this option is set to Enabled, the BIOS displays all the logical processors. If this option is set to Disabled, the BIOS displays only one logical processor per core. By default, this option is set to Enabled
   CPU Interconnect Speed	Allows you to govern the frequency of the communication links among the processors in the system. NOTE:The standard and basic bin processors support lower link frequencies. The options available are Maximum data rate, 16.0 GT/s, 14.4 GT/s, and 12.8 GT/s. By default, this option is set to Maximum data rate. Maximum data rate indicates that the BIOS runs the communication links at the maximum frequency that the processors support. You can also select specific frequencies that the processors support, which can vary. For best performance, you should select Maximum data rate. Any reduction in the communication link frequency affects the performance of non-local memory access and cache coherency traffic. In addition, it can slow access to non-local I/O devices from a particular processor. If power-saving considerations outweigh performance, reduce the frequency of the processor communication links. Before reducing the frequency, you must localize the memory and I/O access to the nearest NUMA node to minimize the impact to system performance.
   Virtualization Technology	Enables or disables the virtualization technology for the processor. By default, this option is set to Enabled.
   Directory Mode	Enables or disables the directory mode. By default, this option is set to Enabled.
   Kernel DMA Protection	By default, this option is set to Disabled. When the option is set to Enabled, the BIOS and operating system use virtualization technology to enable direct memory access protection for DMA-capable peripheral devices.
   Adjacent Cache Line Prefetch	Optimizes the system for applications that need high utilization of sequential memory access. By default, this option is set to Enabled. You can disable this option for applications that need high utilization of random memory access.
   Hardware Prefetcher	Enables or disables the hardware prefetcher. By default, this option is set to Enabled.
   DCU Streamer Prefetcher	Enables or disables the DCU streamer prefetcher. By default, this option is set to Enabled.
   DCU IP Prefetcher	Enables or disables the DCU IP prefetcher. By default, this option is set to Enabled.
   Sub NUMA Cluster	Enables or disables the Sub NUMA Cluster. By default, this option is set to Disabled.
   MADT Core Enumeration	Specifies the MADT Core Enumeration. By default, this option is set to Round Robin. Linear option supports industry core enumeration whereas, Round Robin option supports Dell Technologies optimized core enumeration.
   UMA Based Clustering	This field is read-only and shows as Quadrant when the Sub NUMA Cluster is disabled, or displays as Disabled, when Sub NUMA Cluster is either 2-way or 4-way.
   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. By default, this option is set to Enabled.
   XPT Prefetch	By default, this option is set to Enabled.
   LLC Prefetch	Enables or disables the LLC Prefetch on all threads. By default, this option is set to Enabled.
   Dead Line LLC Alloc	Enables or disables the Dead Line LLC Alloc. By default, this option is set to Enabled. 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. By default, this option is set to Disabled.
   AVX P1	Enables you to reconfigure the processor TDP levels during POST based on the power and thermal delivery capabilities of the system. TDP verifies the maximum heat that the cooling system must dissipate. By default, this option is set to Normal. NOTE:This option is only available on certain processor SKUs.
   Intel SST-BF	Enables Intel SST-BF. This option is displayed if Performance Per Watt (operating system) or Custom (when OSPM is enabled) system profiles are selected. By default, this option is set to Disabled.
   Intel SST-CP	Enables Intel SST-CP. This option displays 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. By default, this option is set to Disabled. NOTE:This option is hidden if the processor installed does not support SST capabilities.
   x2APIC Mode	Enables or disables x2APIC mode. By default, this option is set to Enabled. NOTE:For two processors with a 64 core configuration, x2APIC mode is not switchable if 256 threads are enabled (BIOS settings: All CCD, cores, and logical processors are enabled).
   AVX ICCP Pre-Grant License	Enables or disables AVX ICCP Pre-Grant License. By default, this option is set to Disabled.

   The following table provides details about the Dell Controlled Turbo options.

   Table 2. Dell Controlled TurboThis table provides details about the Dell Controlled Turbo settings.

   Option	Description
   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.
   Dell AVX Scaling Technology	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. When the Dell-controlled Turbo feature is enabled, the value that is entered decreases the Dell AVX Scaling Technology frequency.
   Optimizer Mode	Enables or disables the CPU performance. When this option is set to Auto, set 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.
   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	Limits the CPU physical address to 46 bits to support older Hyper-V. When enabled, TME-MT is automatically disabled. By default, this option is set to Enabled.
   AMP Prefetch	This option enables one of the Mid-Level Cache (MLC) AMP hardware Prefetcher. This option is set to Disabled by default.
   Homeless Prefetch	This option allows the L1 (DCU) to prefetch, when the FB is full. Auto maps to hardware default setting. This option is set to Auto by default.
   Uncore Frequency RAPL	This setting controls whether the Running Average Power Limit (RAPL) balancer is enabled or not. If enabled, it activates the uncore power budgeting. This option is set to Enabled by default.
   Processor Core Speed	Specifies the maximum core frequency of the processor.
   Processor Bus Speed	Specifies the bus speed of the processor. NOTE:The processor bus speed option displays only when both processors are installed.
   Local Machine Check Exception	Enables or disables the local machine check exception. This exception is an extension of the MCA Recovery mechanism. This exception provides the capability to deliver Uncorrected Recoverable (UCR) Software Recoverable Action Required (SRAR) errors to one or more specific logical processor threads that receive corrupted data. When enabled, the UCR SRAR Machine Check Exception is delivered only to the affected thread instead of the system. This 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. This option is set to Disabled by default.
   CPU Crash Log Support	This field controls Intel CPU Crash Log feature for collection of previous crash data from shared SRAM of out-of-band Management Service Module at post reset. By default, this option is set to Disabled.
   Processor n	Depending on the number of processors, there might be up to n processors listed.

   The settings that are provided in the following Processor n details table are displayed for each processor.

   Table 3. Processor n detailsThis table provides the description of options in the Processor n details.

   Option	Description
   Family-Model-Stepping	Describes the family, model, and stepping of the processor as defined by Intel
   Brand	Specifies the brand name
   Level 2 Cache	Lists the total L2 cache
   Level 3 Cache	Provides the total L3 cache
   Number of Cores	Specifies the number of cores per processor
   Microcode	Displays the processor microcode version