Dell EMC PowerEdge MX840c BIOS and UEFI Reference Guide Part Number: E05B Series Regulatory Type: E05B001 December 2020 Rev.
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 data and tells you how to avoid the problem. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. © 2019 - 2020 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries.
Contents Chapter 1: BIOS and UEFI.............................................................................................................. 4 Options to manage the pre-operating system applications.......................................................................................4 System Setup....................................................................................................................................................................... 4 View System Setup.......................
1 BIOS and UEFI You can manage basic settings and features of a system without booting to the operating system by using the system firmware.
Option Description System BIOS Enables you to configure BIOS settings. iDRAC Settings Enables you to configure the iDRAC settings. The iDRAC settings utility is an interface to set up and configure the iDRAC parameters by using UEFI (Unified Extensible Firmware Interface). You can enable or disable various iDRAC parameters by using the iDRAC settings utility. For more information about this utility, see Integrated Dell Remote Access Controller User’s Guide at www.dell.com/idracmanuals.
Option Description Integrated Devices Specifies options to manage integrated device controllers and ports, specifies related features and options. Serial Communication Specifies options to manage the serial ports, its related features and options. System Profile Settings Specifies options to change the processor power management settings, memory frequency.
Option Description System Manufacturer Indicates the name of the Original Equipment Manufacturer (OEM). System Manufacturer Contact Information Indicates the contact information of the Original Equipment Manufacturer (OEM). System CPLD Version Specifies the current version of the system, complex programmable logic device (CPLD) firmware. Secondary System CPLD Version Specifies the current version of the system, complex programmable logic device (CPLD) firmware.
Option Description System Memory Testing Specifies whether the system memory tests are run during system boot. Options are Enabled and Disabled. This option is set to Disabled by default. NOTE: When Enabled the system takes more to boot. The booting time depends on the size of the system memory. Dram Refresh Delay By enabling the CPU memory controller to delay running the REFRESH commands, you can improve the performance for some workloads.
Option Description Volatile DIMM, persistency for all NVDIMM-N is enabled and presented to operating system (data is preserved). This option is set to Non-Volatile DIMM by default. Persistent Memory Scrubbing Enables scrubbing of persistent memory during POST. Sanitize All NVDIMMs Enables or disables clearing data on the NVDIMM-N. If set to Enable, all data on the NVDIMM-N is lost. This option is used to remove data on the NVDIMM-N, repurpose your system. This option is set to Disable by default.
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 restart your system and try again. 3. On the System Setup Main Menu screen, click System BIOS. 4. On the System BIOS screen, click Processor Settings.
Option Description Dead Line LLC Alloc When enabled, it opportunistically fill dead lines in LLC. When disabled, it never fill dead lines in LLC. This option is set to Enabled by default. Directory AtoS AtoS optimization reduces remote read latencies for repeat read accesses without intervening writes. This option is set to Disabled by default. FastGo Enables you to select CR OOS Configuration Profiles. IRQ Throttle Enables you to throttle local requests that are targeting a remote address.
SATA Settings You can use the SATA Settings screen to view the SATA settings of SATA devices and enable SATA and PCIe NVMe RAID mode on your system. View SATA Settings To view the SATA Settings screen, perform the following steps: Steps 1. Turn on, or restart your system. 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 restart your system and try again. 3.
NOTE: To configure these drives as RAID drives, click System BIOS Settings > SATA Settings > Embedded SATA Option and enable RAID mode. If not, you must set this field to Non-RAID mode. View NVMe settings To view the NVMe Settings screen, perform the following steps: Steps 1. Turn on, or restart your system. 2.
3. On the System Setup Main Menu screen, click System BIOS. 4. On the System BIOS screen, click Boot Settings. Boot Settings details About this task The Boot Settings screen details are explained as follows: Option Description Boot Mode Allows you to configure the Boot Sequence and Enable or Disable the individual boot options. The available options are BIOS and UEFI. The option is set to UEFI by default. Boot Sequence Retry Enables or disables the Boot Sequence Retry feature.
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. The following instructions may vary if you have selected BIOS for Boot Mode. Steps 1. On the System Setup Main Menu screen, click System BIOS > Boot Settings > UEFI/BIOS Boot Settings > UEFI/ BIOS Boot Sequence. 2. Use the arrow keys to select a boot device, and use the plus (+) and minus (-) sign keys to move the device down or up in the order. 3.
Option Description HTTP Device n Enables you to control the configuration of the HTTP device. Settings (n = 1 to 4) UEFI iSCSI Settings TLS Authentication Configuration Enables you to control the configuration of the iSCSI device. Table 1. UEFI iSCSI Settings screen details Option Description iSCSI Initiator Name Specifies the name of the iSCSI initiator in IQN format. iSCSI Device1 Enables or disables the iSCSI device.
Option Description The USB keyboard and mouse still function in certain USB ports during the boot process, depending on the selection. After the boot process is complete, the USB ports will be enabled or disabled as per the setting. Internal USB Port Enables or disables the internal USB port. This option is set to On by default. iDRAC Direct USB Port The iDRAC Direct USB port is managed by iDRAC exclusively with no host visibility. This option is set to ON or OFF.
Option Description NOTE: Setting Memory Mapped I/O Base to 512 GB requires less than 512 GB of physical memory else the system might fail to POST. Mezzanine Slot Disablement The Slot Disablement feature controls the configuration of mezzanine cards installed in the specified slots. Only mezzanine card slots that are present on your system are available for control. Serial Communication Use the Serial Communication screen to view the properties of the serial communication port.
Option Description Failsafe Baud Rate Specifies the failsafe baud rate for console redirection. The BIOS attempts to determine the baud rate automatically. This failsafe baud rate is used only if the attempt fails, and the value must not be changed. This option is set to 115200 by default. Remote Terminal Type Sets the remote console terminal type. This option is set to VT100/VT220 by default. Redirection After Enables or disables the BIOS console redirection when the operating system is loaded.
Option Description Write Data CRC Enables or disables the Write Data CRC. This option is set to Disabled by default. Memory Patrol Scrub Sets the memory patrol scrub frequency. This option is set to Standard by default. Memory Refresh Rate Sets the memory refresh rate to either 1x or 2x. This option is set to 1x by default. Uncore Frequency Enables you to select the Processor Uncore Frequency option.
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 restart your system and try again. 3. On the System Setup Main Menu screen, click System BIOS. 4. On the System BIOS screen, click System Security.
Option Description Table 3. TPM 2.0 security information (continued) TPM information Description TPM Hierarcy Enable, disable, or clear the storage and endorsement hierarchies. When set to Enabled, the storage and endorsement hierarchies can be used. When set to Disabled, the storage and endorsement hierarchies cannot be used. When set to Clear, the storage and endorsement hierarchies are cleared of any values, and then reset to Enabled.
Option Description Secure Boot Mode Configures how the BIOS uses the Secure Boot Policy Objects (PK, KEK, db, dbx). If the current mode is set to Deployed Mode, the available options are User Mode and Deployed Mode. If the current mode is set to User Mode, the available options are User Mode, Audit Mode, and Deployed Mode. Options Description User Mode In User Mode, PK must be installed, and BIOS performs signature verification on programmatic attempts to update policy objects.
NOTE: Password protection does not take effect until the system reboots. Using your system password to secure your system Prerequisites If you have assigned a setup password, the system accepts your setup password as an alternate system password. Steps 1. Turn on or reboot your system. 2. Type the system password and press Enter. Next steps When Password Status is set to Locked, type the system password and press Enter when prompted at reboot.
● You cannot disable or change an existing system password. NOTE: You can use the password status option with the setup password option to protect the system password from unauthorized changes. Redundant OS Control You can use the Redundant OS Control screen to set the redundant OS info for redundant OS control. It enables you to set up a physical recovery disk on your system. Viewing Redundant OS Control To view the Redundant OS Control screen, perform the following steps: Steps 1.
Miscellaneous Settings You can use the Miscellaneous Settings screen to perform specific functions such as updating the asset tag and changing the system date and time. View Miscellaneous Settings To view the Miscellaneous Settings screen, perform the following steps: Steps 1. Turn on, or restart your system. 2.
For more information about using iDRAC, see Dell Integrated Dell Remote Access Controller User's Guide at www.dell.com/ idracmanuals. Device Settings Device Settings enables you to configure the device parameters. Dell Lifecycle Controller The Dell Lifecycle Controller (LC) provides advanced embedded systems management capabilities, including system deployment, configuration, update, maintenance, and diagnosis.
Menu item Description Launch Lifecycle Controller Exits the Boot Manager and invokes the Dell Lifecycle Controller program. System Utilities Enables you to launch System Utilities menu such as System Diagnostics and UEFI shell. One-shot UEFI Boot menu One-shot UEFI Boot menu enables you to access the UEFI Boot menu and select an one-shot boot option to boot from.
