Dell EMC PowerEdge R250 BIOS and UEFI Reference Guide
Summary
Manage your Dell EMC PowerEdge R250 server firmware settings with this comprehensive guide. Designed for system administrators and IT professionals, the manual provides deep dives into pre-operating system management via BIOS and UEFI. Learn how to configure iDRAC settings, manage detailed device parameters, utilize the robust Dell Lifecycle Controller, and set up advanced boot functions including PXE booting. Everything needed to optimize your server's performance without needing an operating system installed.
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Dell EMC Power Edge R250 BIOS and UEFI Reference Guide
Regulatory Model: E79S Series Regulatory Type: E79S001 Dec. 2021 Rev. A01
Page Summary Contents For Dell EMC PowerEdge R250 BIOS and UEFI Reference Guide
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Dell EMC Power Edge R250 BIOS and UEFI Reference Guide Regulatory Model: E79S Series Regulatory Type: E79S001 Dec. 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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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. Memory Settings details Option Descr...
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Table 5. Processor Settings details (continued) Option Description LLC Prefetch Enables or disables the LLC Prefetch on all threads. This option is set to Enabled by default. Dead Line LLC Alloc Enabl...
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Table 7. SATA Settings details (continued) Option Description Table 8. Port n Options Descriptions Model Specifies the drive model of the selected device. Drive Type Specifies the type of drive attach...
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Changing boot order About this task You may have to change the boot order if you want to boot from a USB key or an optical drive. Steps 1. On the System Setup Main Menu screen, click System BIOS > ...
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Table 13. UEFI i SCSI Settings screen details (continued) Option Description i SCSI Device1 Settings Enables you to control the configuration of the i SCSI device. Table 14. ISCSI Device1 Settings scr...
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Table 15. Integrated Devices details (continued) Option Description NOTE: When there are multiple add-in graphic cards installed in the system, the first card discovered during PCI enumeration is sele...
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Table 16. Serial Communication details (continued) Option Description NOTE: Only Serial Device 2 can be used for Serial Over LAN (SOL). To use console redirection by SOL, configure the same port addre...
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Table 17. System Profile Settings details (continued) Option Description Monitor/Mwait Enables the Monitor/Mwait instructions in the processor. This option is set to Enabled for all system profiles, e...
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Table 20. 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 20. System Security details (continued) Option Description NOTE: BIOS update requires HECI devices to be operational and DUP updates require IPMI interface to be operational. This setting needs ...
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Steps 1. To enter System Setup, press F2 immediately after turning on or rebooting your system. 2. On the System Setup Main Menu screen, click System BIOS > System Security. 3. On the System Securi...
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NOTE: If you change the system password or setup password, a message prompts you to reenter the new password. If you delete the system password or setup password, a message prompts you to confirm the ...
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Table 23. Miscellaneous Settings details (continued) Option Description Keyboard Num Lock Enables you to set whether the system boots with the Num Lock enabled or disabled. This option is set to On by...
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Table 24. Boot Manager details Option Description Continue Normal Boot The system attempts to boot to devices starting with the first item in the boot order. If the boot attempt fails, the system cont...
Manual Details
| Brand | Dell |
|---|---|
| Pages | 19 |
| File Size | 155.52 KB |
| Published | June 23, 2026 |
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Frequently Asked Questions
How do I configure general BIOS settings?
To view System BIOS, power on the system and press F2 to access the System Setup Main Menu, then select System BIOS.
What are the options available in the Boot Manager?
The options include Continue Normal Boot, One-shot Boot Menu, Launch System Setup, and Launch Lifecycle Controller.
Where can I manage iDRAC parameters?
You can use the iDRAC settings utility through system setup to set up and configure parameters using UEFI.
How do I troubleshoot network device booting issues?
Access the PXE boot option by pressing F12 during POST, which allows you to remotely boot and configure networked systems.