- Notes, cautions, and warnings
- About this document
- PowerEdge R660 system overview
- Technical specifications
- Chassis dimensions
- System weight
- Processor specifications
- PSU specifications
- Cooling fan specifications
- Supported operating systems
- System battery specifications
- Expansion card riser specifications
- Memory specifications
- Storage controller specifications
- Drives
- Ports and connectors specifications
- Video specifications
- Environmental specifications
- Initial system setup and configuration
- Pre-operating system management applications
- System Setup
- Dell Lifecycle Controller
- Boot Manager
- PXE boot
- Minimum to POST and system management configuration validation
- Installing and removing system components
- Safety instructions
- Before working inside your system
- After working inside your system
- Recommended tools
- Optional front bezel
- System cover
- Drive backplane cover
- Air shrouds
- Cooling fans
- Drives
- Removing a drive blank
- Installing a drive blank
- Removing the drive carrier
- Installing the drive carrier
- Removing the drive from the drive carrier
- Installing the drive into the drive carrier
- Removing an EDSFF E3.S drive blank
- Installing an EDSFF E3.S drive blank
- Removing an EDSFF E3.S drive carrier
- Installing an EDSFF E3.S drive carrier
- Removing an EDSFF E3.S drive from the drive carrier
- Installing an EDSFF E3.S drive into the drive carrier
- Drive backplane
- Side wall brackets
- PERC modules
- Rear drive module
- Cable routing
- System memory
- Processor and heat sink module
- Expansion cards and expansion card risers
- Expansion card installation guidelines
- Removing the expansion card risers
- Installing the expansion card risers
- Removing expansion card from the expansion card riser
- Installing an expansion card into the expansion card riser
- Removing the A2 Blank from the expansion card riser
- Installing the A2 Blank on to the expansion card riser
- Removing the VGA port
- Installing the VGA port
- Intrusion switch
- M.2 SSD module
- Optional BOSS-N1 module
- System battery
- Optional OCP NIC card
- Optional internal USB card
- VGA module
- Power supply unit
- Optional serial COM port
- System board
- LOM card, MIC card, and rear I/O board
- Control panel
- Trusted Platform Module
- Upgrade Kits
- Jumpers and connectors
- System diagnostics and indicator codes
- Using system diagnostics
- Getting help
- Documentation resources
Dell PowerEdge R660 Installation and Service Manual
Processor Settings
To view the
Processor Settings screen, power on the system, press F2, and click
.
| 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. This option is set to Enabled by default. |
| CPU Interconnect Speed | Enables 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 GT/s, Maximum data rate indicates that the BIOS runs the communication links at the maximum frequency For best performance, you should select Maximum data rate. Any reduction in the However, if power saving considerations outweigh performance, reduce the frequency of the processor |
| Virtualization Technology | Enables or disables the virtualization technology for the processor. This option is set to Enabled by default. |
| Kernel DMA Protection | This option is set to Disabled by default. When option is set to Enabled, BIOS and Operating System will enable direct memory access protection for DMA capable peripheral devices using virtualization technology. |
| Directory Mode | Enables or disables the directory mode. This option is set to Enabled by default. |
| Adjacent Cache Line Prefetch | Optimizes the system for applications that need high utilization of sequential memory access. This option is set to Enabled by default. You can disable this option for applications that need high utilization of random memory access. |
| Hardware Prefetcher | Enables or disables the hardware prefetcher. This option is set to Enabled by default. |
| DCU Streamer Prefetcher | Enables or disables the Data Cache Unit (DCU) streamer prefetcher. This option is set to Enabled by default. |
| DCU IP Prefetcher | Enables or disables the Data Cache Unit (DCU) IP prefetcher. This option is set to Enabled by default. |
| Sub NUMA Cluster | Enables or disables the Sub NUMA Cluster. This option is set to Disabled by default. |
| 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. |
| UMA Based Clustering | It is a read-only field and displays as Quadrant , when 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. This option is set to Enabled 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. |
| 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 stock keeping units (SKUs) of the processors.
|
| 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. This option is set to Disabled by default. |
| 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.
|
| 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. The value that is entered decreases the Dell AVX Scaling Technology frequency when the Dell-controlled Turbo feature is enabled. |
| 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 | 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. |
| 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 L1 Data Cache Unit (DCU) to prefetech, when the Fill Buffers (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 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. This option is set to Enabled 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. This option is set to Disabled by default. |
| Processor n |
NOTE:Depending on the number of processors, there might be up to n processors listed.
The following settings are displayed for each processor:
|
| Option | Description |
|---|---|
| Family-Model-Stepping | Specifies the family, model, and stepping of the processor as defined by Intel. |
| Brand | Specifies the brand name. |
| Level 2 Cache | Specifies the total L2 cache. |
| Level 3 Cache | Specifies the total L3 cache. |
| Number of Cores | Specifies the number of cores per processor. |
| Microcode | Specifies the processor microcode version. |
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