Dell EMC PowerEdge R640 BIOS and UEFI Reference Guide
Summary
The Dell EMC PowerEdge R640 BIOS and UEFI Reference Guide provides comprehensive documentation for pre-operating system management on PowerEdge R640 servers. The manual covers System Setup navigation, BIOS configuration options, iDRAC settings, device settings, Dell Lifecycle Controller functions, and boot manager operations. It includes detailed explanations of memory, processor, SATA, NVMe, network, and security settings. Intended for server administrators, system engineers, and IT professionals responsible for configuring and optimizing Dell EMC PowerEdge R640 server hardware settings.
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Dell EMC Power Edge R640 BIOS and UEFI Reference Guide
March 2022 Rev. A03
Page Summary Contents For Dell EMC PowerEdge R640 BIOS and UEFI Reference Guide
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Dell EMC Power Edge R640 BIOS and UEFI Reference Guide March 2022 Rev. A03
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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 Options to manage the pre-operating system applications.......................
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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. Topics: Options to manage the ...
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System Setup details The System Setup Main Menu screen details are explained as follows: Option Description System BIOS Enables you to configure BIOS settings. i DRAC Settings Enables you to configure...
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Option Description Network Settings Provides options to manage the UEFI network settings and boot protocols. Legacy network settings are managed from the Device Settings menu. Integrated Provides opti...
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Option Description System Service Specifies the system Service Tag. Tag System Specifies the name of the system manufacturer. Manufacturer System Specifies the contact information of the system manufa...
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Option Description System Memory Specifies whether the system memory tests are run during system boot. Options are Enabled and Testing Disabled. This option is set to Disabled by default. Dram Refresh...
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Processor Settings You can use the Processor Settings screen to view the processor settings and perform specific functions such as enabling virtualization technology, hardware prefetcher, logical proc...
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Option Description DCU IP Enables or disables the Data Cache Unit (DCU) IP prefetcher. This option is set to Enabled by default. Prefetcher Sub NUMA Sub NUMA Clustering (SNC) is a feature for breaking...
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Option Description Option Description Maximum Specifies the maximum memory capacity per processor. Memory Capacity Microcode Specifies the microcode. SATA Settings You can use the SATA Settings screen...
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NVMe Settings The NVMe settings enable you to set the NVMe drives to either RAID mode or Non-RAID mode. NOTE: To configure these drives as RAID drives, you must set the NVMe drives and the Embedded SA...
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2. Press F2 immediately after you see the following message: F2 = System Setup NOTE: If your operating system begins to load before you press F2, wait for the system to finish booting, and then restar...
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If you have configured your system to boot to UEFI mode, it replaces the system BIOS. 1. From the System Setup Main Menu, click Boot Settings, and select Boot Mode. 2. Select the UEFI boot mode you wa...
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Network Settings screen details The Network Settings screen details are explained as follows: About this task Option Description UEFI PXE Options Description Settings PXE Device n (n Enables or disabl...
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2. Press F2 immediately after you see the following message: F2 = System Setup NOTE: If your operating system begins to load before you press F2, wait for the system to finish booting, and then restar...
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Option Description SR-IOV Global Enables or disables the BIOS configuration of Single Root I/O Virtualization (SR-IOV) devices. This option Enable is set to Disabled by default. Internal SD Card Enabl...
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Option Description Table 3. Slot Bifurcation Option Description Slot 3 Bifurcation x16 or x8 or x4 or x4x4x8 or x8x4x4 Bifurcation Serial Communication You can use the Serial Communication screen to v...
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Option Description NOTE: Every time the system boots, the BIOS syncs the serial MUX setting saved in i DRAC. The serial MUX setting can independently be changed in i DRAC. Loading the BIOS default set...
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Option Description C1E Enables or disables the processor to switch to a minimum performance state when it is idle. This option is set to Enabled by default. C States Enables or disables the processor ...
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System Security You can use the System Security screen to perform specific functions such as setting the system password, setup password and disabling the power button. Viewing System Security To view...
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Option Description When set to Clear, the storage and endorsement hierarchies are cleared of any values, and then reset to Enabled. TPM Advanced This setting is enabled only when TPM Security is set t...
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Option Description Options Description Deployed Mode restricts the programmatic mode transitions. Secure Boot Specifies the list of certificates and hashes that secure boot uses to authenticate images...
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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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Redundant OS Control screen details The Redundant OS Control screen details are explained as follows: About this task Option Description Redundant OS Enables you to select a backup disk from the follo...
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Option Description System Time Enables you to set the time on the system. System Date Enables you to set the date on the system. Asset Tag Specifies the asset tag and enables you to modify it for secu...
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Boot Manager The Boot Manager screen enables you to select boot options and diagnostic utilities. Viewing Boot Manager About this task To enter Boot Manager: Steps 1. Power on, or restart your system....
Manual Details
| Brand | Dell |
|---|---|
| Pages | 27 |
| File Size | 206.35 KB |
| Published | June 27, 2026 |
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Frequently Asked Questions
How do I access the System Setup screen?
Power on or restart the system, and press F2 immediately after seeing the message: F2 = System Setup.
Which key is used to enter the Boot Manager menu?
Press F11 when you see the following message: F11 = Boot Manager.
How can I remotely configure networked systems using PXE boot?
Boot the system and then press F12 during POST (Power-On Self Test) to access the PXE boot option.
Where can I configure BIOS or iDRAC settings?
You can use the System Setup screen, which allows configuration of both BIOS and iDRAC settings utilities.