Dell EMC PowerEdge C6520 BIOS and UEFI Reference Guide Part Number: E64S Series Regulatory Type: E64S001 July 2021 Rev.
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Contents Chapter 1: Pre-operating system management applications...........................................................4 System Setup....................................................................................................................................................................... 4 System BIOS................................................................................................................................................................... 5 iDRAC Settings utility......
1 Pre-operating system management applications You can manage basic settings and features of a system without booting to the operating system by using the system firmware.
System BIOS To view the System BIOS screen, power on the system, press F2, and click System Setup Main Menu > System BIOS. Table 2. System BIOS details Option Description System Information Provides information about the system such as the system model name, BIOS version, and Service Tag. Memory Settings Specifies information and options related to the installed memory. Processor Settings Specifies information and options related to the processor such as speed and cache size.
Table 3. System Information details (continued) Option Description System CPLD Version Specifies the current version of the system complex programmable logic device (CPLD) firmware. UEFI Compliance Version Specifies the UEFI compliance level of the system firmware. Memory Settings To view the Memory Settings screen, power on the system, press F2, and click System Setup Main Menu > System BIOS > Memory Settings. Table 4.
Table 4. Memory Settings details (continued) Option Description Dark Memory: Total Memory Available Enables or Disables dark memory feature. Dark Memory feature allows software to change memory size. The option is set to Disabled in default, need to be enabled by personality module. Processor Settings To view the Processor Settings screen, power on the system, press F2, and click System Setup Main Menu > System BIOS > Processor Settings. Table 5.
Table 5. Processor Settings details (continued) Option Description 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. UPI Prefetch Enables you to get the memory read started early on DDR bus.
Table 5. Processor Settings details (continued) Option Description 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.
Table 6. Processor n details 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. Maximum Memory Capacity Specifies the maximum memory capacity per processor. Microcode Specifies the processor microcode version.
To view the NVMe Settings screen, power on the system, press F2, and click System Setup Main Menu > System BIOS > NVMe Settings. Table 9. NVMe Settings details Option Description NVMe mode Enables or disables the boot mode. The option is set to Non-RAID mode by default. BIOS NVMe driver Sets the drive type to boot the NVMe driver. The available options are Dell Qualified Drives and All Drives. This option is set to Dell Qualified Drives by default.
Table 10. Boot Settings details (continued) Option Description Table 11. UEFI Boot Settings Option Description UEFI Boot Sequence Enables you to change the boot device order. Boot Options Enable/Disable Enables you to select the enabled or disabled boot devices Choosing system boot mode System Setup enables you to specify one of the following boot modes for installing your operating system: ● UEFI boot mode (the default), is an enhanced 64-bit boot interface.
Table 12. Network Settings details Option Description UEFI PXE Settings Enables you to control the configuration of the UEFI PXE device. PXE Device n (n = 1 to 4) Enables or disables the device. When enabled, a UEFI PXE boot option is created for the device. PXE Device n Settings(n = 1 to 4) Enables you to control the configuration of the PXE device. UEFI HTTP Settings Enables you to control the configuration of the UEFI HTTP device. HTTP Device n (n = 1 to 4) Enables or disables the device.
Table 16. Integrated Devices details Option Description User Accessible USB Ports Configures the user accessible USB ports. Selecting All Ports Off disables all front and back USB ports.This option is set to All Ports On by default. The USB keyboard and mouse still function in certain USB ports during the boot process, depending on the selection. After the boot process is complete, the USB ports will be enabled or disabled as per the setting.
Table 16. Integrated Devices details (continued) Option Description system initializes the timer. When this option is set to Disabled (the default), the timer does not have any effect on the system. Empty Slot Unhide Enables or disables the root ports of all the empty slots that are accessible to the BIOS and OS. This option is set to Disabled by default. Memory Mapped I/O above 4 GB Enables or disables the support for the PCIe devices that need large amounts of memory.
Table 17. Serial Communication details (continued) Option Description be changed in iDRAC. Loading the BIOS default settings from within the BIOS setup utility may not always revert the serial MUX setting to the default setting of Serial Device 1. External Serial Connector Enables you to associate the External Serial Connector to Serial Device 1 by using this option. NOTE: Every time the system boots, the BIOS syncs the serial MUX setting saved in iDRAC.
Table 18. System Profile Settings details (continued) Option Description Uncore Frequency Enables you to select the Uncore Frequency option. Dynamic mode enables the processor to optimize power resources across cores and uncores during runtime. The optimization of the uncore frequency to either save power or optimize performance is influenced by the setting of the Energy Efficiency Policy option. Energy Efficient Policy Enables you to select the Energy Efficient Policy option.
Table 20. TPM 1.2 security information (continued) Option Description TPM Firmware Indicates the firmware version of the TPM. TPM Status Specifies the TPM status. TPM Command Controls the Trusted Platform Module (TPM). When set to None, no command is sent to the TPM. When set to Activate, the TPM is enabled and activated. When set to Deactivate, the TPM is disabled and deactivated. When set to Clear, all the contents of the TPM are cleared. This option is set to None by default. Table 21. TPM 2.
Table 22. System Security details (continued) Option Description selecting Change to New random Owner EPOCHs, the selection reverts back to Manual User Defined Owner EPOCHs. Software Guard Extensions Epoch n: Sets the Software Guard Extensions Epoch values. Enable writes to SGXLEPUBKEYHASH[3:0] from OS/SW Enables or disables the Enable writes to SGXLEPUBKEYHASH[3:0] from OS/SW. SGX LE Public Key Hash0: Sets the bytes from 0-7 for SGX Launch Enclave Public Key Hash.
Table 22. System Security details (continued) Option Description Custom, the BIOS uses the user-defined key and certificates. Secure Boot policy is set to Standard by default. Secure Boot Mode Configures how the BIOS uses the Secure Boot Policy Objects (PK, KEK, db, dbx). If the current mode is set to Deployed Mode, the available options are User Mode and Deployed Mode. If the current mode is set to User Mode, the available options are User Mode, Audit Mode, and Deployed Mode. Table 23.
6. In the Setup Password field, type your setup password and press Enter or Tab. A message prompts you to reenter the setup password. 7. Reenter the setup password, and click OK. 8. Press Esc to return to the System BIOS screen. Press Esc again. A message prompts you to save the changes. NOTE: Password protection does not take effect until the system reboots.
Even after you power off and restart the system, the error message is displayed until the correct password is typed. The following options are exceptions: ● If System Password is not set to Enabled and is not locked through the Password Status option, you can assign a system password. For more information, see the System Security Settings screen section. ● You cannot disable or change an existing system password.
Table 25. Miscellaneous Settings details (continued) Option Description Load Legacy Video Option ROM Enables or disables the Load Legacy Video Option ROM option. This option is set to Disabled by default. Dell Wyse P25/P45 BIOS Access Enables or disables the Dell Wyse P25/P45 BIOS Access. This option is set to Enabled by default. Power Cycle Request Enables or disables the Power Cycle Request. This option is set to None by default.
Table 26. Boot Manager details (continued) Option Description Launch System Setup Enables you to access System Setup. Launch Lifecycle Controller Exits the Boot Manager and invokes the Dell Lifecycle Controller program. System Utilities Enables you to launch System Utilities menu such as Launch Diagnostics, BIOS update File Explorer, Reboot System. PXE boot You can use the Preboot Execution Environment (PXE) option to boot and configure the networked systems remotely.
