Dell EMC PowerEdge T550 BIOS and UEFI Reference Guide
Summary
This reference guide documents BIOS and UEFI configuration options for the Dell EMC PowerEdge T550 tower server. It covers pre-OS management applications including System Setup, iDRAC Settings, Dell Lifecycle Controller, Boot Manager, and PXE boot. Detailed descriptions cover BIOS settings for boot sequence, processor configuration, memory, device settings, security, and power management. Intended for system administrators configuring PowerEdge T550 servers at the firmware level.
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Dell EMC Power Edge T550 BIOS and UEFI Reference Guide
Regulatory Model: E76S Regulatory Type: E76S001 December 2021 Rev. A01
Page Summary Contents For Dell EMC PowerEdge T550 BIOS and UEFI Reference Guide
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Dell EMC Power Edge T550 BIOS and UEFI Reference Guide Regulatory Model: E76S Regulatory Type: E76S001 December 2021 Rev. A01
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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 Directory Mode Enables or disables the directory mode. This option is set to Enabled by default. Kernel DMA Protection When set to En...
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Table 5. Processor Settings details (continued) Option Description AVX P1 Enables you to reconfigure the processor Thermal Design Power (TDP) levels during POST based on the power and thermal delivery...
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Table 5. Processor Settings details (continued) Option Description Number of Cores per Processor Controls the number of enabled cores in each processor. This option is set to All by default. Processor...
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Table 7. SATA Settings details (continued) Option Description Security Freeze Lock Sends Security Freeze Lock command to the embedded SATA drives during POST. This option is applicable only for AHCI M...
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Table 9. Boot Settings details (continued) Option Description Generic USB Boot Enables or disables the generic USB boot placeholder. This option is set to Disabled by default. Hard-disk Drive Placehol...
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Table 11. Network Settings details (continued) Option Description HTTP Device n (n = 1 to 4) Enables or disables the device. When enabled, a UEFI HTTP boot option is created for the device. HTTP Devic...
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Table 15. Integrated Devices details (continued) Option Description Enable Front Ports Only: Enables or disables the front USB ports during the operating system runtime. The USB keyboard and mouse sti...
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Table 15. Integrated Devices details (continued) Option Description is automatically used as the primary display even if the Embedded Video Controller setting is set to Disabled. SR-IOV Global Enable ...
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Table 16. Serial Communication details (continued) Option Description The options available for System with serial COM port (DB9) are On without Console Redirection, On with Console Redirection via Co...
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Table 17. System Profile Settings details (continued) Option Description Memory Frequency Sets the speed of the system memory. You can select Maximum Performance, Maximum Reliability or a specific spe...
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Table 18. System Security details (continued) Option Description Password Status Locks the system password. This option is set to Unlocked by default. TPM Information Indicates the type of Trusted Pla...
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Table 21. System Security details (continued) Option Description Memory Encryption Enables or disables the Intel Total Memory Encryption (TME) and Multi-Tenant (Intel® TME-MT). When option is set to D...
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Table 21. System Security details (continued) Option Description User Defined Delay (60 s to 600 Sets the User Defined Delay option when the User Defined option for AC Power s) Recovery Delay is selec...
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Table 21. System Security details (continued) Option Description Secure Boot Custom Policy Configures the Secure Boot Custom Policy. To enable this option, set the Secure Boot Settings Policy to Custo...
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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 23. 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 | 210.88 KB |
| Published | June 23, 2026 |
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Frequently Asked Questions
How do I access the System Setup menu?
Power on the system, press F2, and click System Setup Main Menu.
How do I enter the Boot Manager?
Power on the system and press F11 to select boot options and diagnostic utilities.
What is the Dell Lifecycle Controller?
It provides advanced embedded system management throughout the system's lifecycle, started during boot and independent of the operating system.
How do I access the PXE boot option?
Boot the system and press F12 during POST to access the PXE boot option.