Dell EMC PowerEdge R650xs BIOS and UEFI Reference Guide
Summary
The comprehensive guide for the Dell EMC PowerEdge R650xs details advanced firmware management using BIOS and UEFI interfaces. This manual serves system administrators and technical professionals who require detailed pre-operating system control over their server hardware. It covers critical configuration utilities including System Setup, iDRAC parameter adjustments, device settings, Boot Manager options, and network PXE boot functionality. Master the deep configurations necessary for robust deployment, maintenance, and optimization of your PowerEdge system without needing to access the operating system.
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Dell EMC Power Edge R650xs BIOS and UEFI Reference Guide
Part Number: E74S Series Regulatory Type: E74S001 September 2021 Rev. A01
Page Summary Contents For Dell EMC PowerEdge R650xs BIOS and UEFI Reference Guide
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Dell EMC Power Edge R650xs BIOS and UEFI Reference Guide Part Number: E74S Series Regulatory Type: E74S001 September 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 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 Embedded Video Controller Enables or disables the use of Embedded Video Controller as the primary display. When set to Enabled, the ...
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Table 16. Integrated Devices details (continued) Option Description NOTE: The slot bifurcation supports on PCIe slot only, does not support slot type from Paddle card to Riser and Slimline connector t...
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Table 17. Serial Communication details (continued) Option Description Redirection After Boot Enables or disables the BIOS console redirection when the operating system is loaded. This option is set to...
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Table 18. System Profile Settings details (continued) Option Description CPU Interconnect Bus Link Enables or disables the CPU Interconnect Bus Link Power Management. This option is set to Power Manag...
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Table 21. TPM 2.0 security information (continued) Option Description When TPM 2.0 is installed, the TPM Security option is set to On or Off. This option is set to Off by default. TPM Information Chan...
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Table 22. System Security details (continued) Option Description SGX LE Public Key Hash3: Sets the bytes from 24-31 for SGX Launch Enclave Public Key Hash. Enable/Disable SGX Auto MP Enables are disab...
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Table 22. System Security details (continued) Option Description Table 23. Secure Boot Mode Options Descriptions User Mode In User Mode, PK must be installed, and BIOS performs signature verification ...
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Using your system password to secure your system About this task If you have assigned a setup password, the system accepts your setup password as an alternate system password. Steps 1. Turn on or rebo...
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Redundant OS Control To view the Redundant OS Control screen, power on the system, press F2, and click System Setup Main Menu > System BIOS > Redundant OS Control. Table 24. Redundant OS Control...
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i DRAC Settings utility The i DRAC settings utility is an interface to set up and configure the i DRAC parameters by using UEFI. You can enable or disable various i DRAC parameters by using the i DRAC...
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To access the PXE boot option, boot the system and then press F12 during POST instead of using standard Boot Sequence from BIOS Setup. It does not pull any menu or allows managing of network devices. ...
Manual Details
| Brand | Dell |
|---|---|
| Pages | 25 |
| File Size | 214.34 KB |
| Published | June 23, 2026 |
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Frequently Asked Questions
How do I access System Setup to configure settings?
You can access it via the iDRAC Dashboard (Configurations > BIOS Settings), by powering on and pressing F2, or by using the Graphical User interface.
What key combination launches the Boot Manager menu?
Power on the system and press F11.
How do I configure settings for NVMe drives in an array?
Set both the NVMe field and the Embedded SATA field to RAID mode, and consider setting the Boot Mode setting to UEFI.
Where can I boot or configure networked systems remotely?
Use the Preboot Execution Environment (PXE) option. To access it, press F12 during POST while booting the system.