Dell EMC PowerEdge C6520 BIOS and UEFI Reference Guide
Summary
The comprehensive BIOS and UEFI Reference Guide for the PowerEdge C6520 provides technical details necessary for advanced system management. This manual is essential for IT professionals, system administrators, and technicians responsible for deploying or maintaining Dell EMC servers. It thoroughly covers pre-operating system functions including System Setup, iDRAC configuration utilities, hardware diagnostics, and managing the boot process via the Lifecycle Controller and PXE booting.
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Dell EMC Power Edge C6520 BIOS and UEFI Reference Guide
Regulatory Model: E64S Series Regulatory Type: E64S001 December 2021 Rev. A04
Page Summary Contents For Dell EMC PowerEdge C6520 BIOS and UEFI Reference Guide
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Dell EMC Power Edge C6520 BIOS and UEFI Reference Guide Regulatory Model: E64S Series Regulatory Type: E64S001 December 2021 Rev. A04
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Notes, cautions, and warnings NOTE: A NOTE indicates important information that helps you make better use of your product. CAUTION: A CAUTION indicates either potential damage to hardware or loss of d...
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Contents Chapter 1: Pre-operating system management applications...........................................................4 System Setup..................................................................
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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. Options to manage the pre-oper...
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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 Provide...
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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 Ve...
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Table 4. Memory Settings details (continued) Option Description Correctable Error Logging Enables or disables correctable error logging. This option is set to Enabled by default. Dark Memory: Total Me...
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Table 5. Processor Settings details (continued) Option Description applications that need high utilization of random memory access. Hardware Prefetcher Enables or disables the hardware prefetcher. Thi...
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Table 5. Processor Settings details (continued) Option Description Intel SST-BF Enables Intel SST-BF. This option is displayed if Performance Per Watt (operating system) or Custom (when OSPM is enable...
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Table 5. Processor Settings details (continued) Option Description UCR SRAR Machine Check Exception is delivered only to the affected thread rather than broadcast to all threads in the system. The fea...
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Table 7. SATA Settings details Option Description Table 8. Port n (continued) Options Descriptions Drive Type Specifies the type of drive attached to the SATA port. Capacity Specifies the total capaci...
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Table 10. Boot Settings details (continued) Option Description the boot sequence after 30 seconds. When this option is set to Reset and the system fails to boot, the system reboots immediately. This o...
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Steps 1. On the System Setup Main Menu screen, click System BIOS > Boot Settings > UEFI Boot Settings > UEFI Boot Sequence. 2. Use the arrow keys to select a boot device, and use the plus (+)...
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Table 15. ISCSI Device1 Settings screen details (continued) Option Description Connection 2 Enables or disables the i SCSI connection. This option is set to Disable by default. Connection 1 Settings E...
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Table 16. Integrated Devices details (continued) Option Description the primary video. You might have to rearrange the cards in the slots in order to control which card is the primary video. I/O Snoop...
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NOTE: The serial port is optional for the Power Edge C6520 system. The Serial Communication option is applicable only if the serial COM port is installed in the system. Table 17. Serial Communication ...
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Table 18. System Profile Settings details (continued) Option Description CPU Power Management Sets the CPU power management. This option is set to System DBPM (DAPC) by default. Other option includes ...
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Table 19. System Security details (continued) Option Description Setup Password Sets the setup password. This option is read-only if the password jumper is not installed in the system. Password Status...
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Table 22. System Security details Option Description Intel(R) TXT Enables you to set the Intel Trusted Execution Technology (TXT) option. To enable the Intel TXT option, virtualization technology and ...
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Table 22. System Security details (continued) Option Description system creates a random delay for power up. When this option is set to User Defined, the system delay time is manually to power up. Use...
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Table 22. System Security details (continued) Option Description Secure Boot Policy Summary Specifies the list of certificates and hashes that secure boot uses to authenticate images. Secure Boot Cust...
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Deleting or changing system and setup password Prerequisites NOTE: You cannot delete or change an existing system or setup password if the Password Status is set to Locked. Steps 1. To enter System Se...
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Table 24. Redundant OS Control details (continued) Option Description When set to Visible, the backup disk is visible to the boot list and OS. When set to Hidden, the backup disk is disabled and is no...
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Dell Lifecycle Controller Dell Lifecycle Controller (LC) provides advanced embedded systems management capabilities including system deployment, configuration, update, maintenance, and diagnosis. LC i...
Manual Details
| Brand | Dell |
|---|---|
| Pages | 24 |
| File Size | 212.56 KB |
| Published | June 23, 2026 |
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Frequently Asked Questions
How can I configure my BIOS settings?
To view System BIOS screen, power on the system and press F2, then access System Setup Main Menu > System BIOS.
Where do I use PXE boot functionality?
Press F12 during POST to access the option for booting and configuring networked systems remotely.
What is the Dell Lifecycle Controller for?
It provides advanced embedded system management throughout the lifecycle of the system and starts during the boot sequence, functioning independently of the OS.
How do I manage general iDRAC parameters?
Use System Setup; navigate to iDRAC Settings utility to set up and configure various iDRAC parameters using UEFI.