The BIOS for this motherboard is standard for server motherboards, so we will only show a few BIOS screens.
This is the main BIOS screen, which shows basic system information.
The Advanced tab brings you to the main advanced screen.
This is the Advanced Boot Feature menu.
Use this feature to select the screen display between POST messages, or the OEM logo at bootup. Select Disabled to display the POST messages. Select Enabled to display the OEM logo instead of the normal POST messages.
Add-On ROM Display Mode:
Use this item to set the display mode for the Option ROM.
INT19 (Interrupt 19) Trap Response:
Interrupt 19 is the software interrupt that handles the boot disk function.
Watch Dog Function:
Select Enabled to allow the Watch Dog timer to reboot the system when it is inactive for more than five minutes.
This is the CPU Configuration screen.
Clock Spread Spectrum:
Select Enabled to allow the BIOS to monitor and attempt to reduce the level of electromagnetic interference caused by the components.
This feature allows you to determine the number of CPU cores to enable. Enter "0" to enable all cores.
Select Unlock/Enable to use the Protected-Processor Inventory Number (PPIN) control in the system.
The Hardware Prefetcher will prefetch streams of data and instructions from the main memory to the L2 cache to improve CPU performance.
Adjacent Cache Line Prefetch:
Select Enable for the CPU to prefetch both cache lines for 128 bytes as comprised.
Select Disable for the CPU to prefetch both cache lines for 64 bytes.
DCU (Data Cache Unit) Streamer Prefetcher:
The DCU Streamer Prefetcher will prefetch data streams from the cache memory to the DCU (Data Cache Unit) to speed up data accessing and processing to enhance CPU performance.
DCU IP Prefetcher:
The IP Prefetcher in the DCU (Data Cache Unit) will prefetch IP addresses to improve network connectivity and system performance.
Set the data-prefecting mode for the DCU (Data Cache Unit).
The options are 32KB eight-way without ECC and 16KB four-way with ECC.
Direct Cache Access (DCA):
Intel DCA (Direct Cache Access) technology will improve the efficiency of data transferring and accessing.
DCA Prefetch Delay:
The DCA prefetcher is used with a TOE (TCP/IP Offload Engine) adapter to prefetch data in order to shorten execution cycles and maximize data processing efficiency.
X2 APIC (Advanced Programmable Interrupt Controller):
Based on Intel's Hyper-Threading architecture, each logical processor (thread) is assigned 256 APIC IDs (APIDs) in 8-bit bandwidth. When this feature is set to Enable, the APIC ID will expand(X2) from 8-bits to 16-bits to provide 512 APIDs to each thread for CPU performance enhancement.
Intel Advanced Encryption Standard (AES) uses a New Instructions (NI) to ensure data security.
Now we are looking at the Advanced Power Management Configuration screen.
CPU P State Control:
EIST (Enhanced Intel SpeedStep Technology) allows the system to automatically adjust the processor voltage and core frequency to reduce power consumption and heat dissipation.
This feature is used to change the P-state (Power-Performance State) coordination type. P-state is also known as "SpeedStep" for Intel processors.
CPU C State Control:
Use this to set the limit on the C-State package register.
CPU C3 Report:
Select Enable to allow the BIOS to report the CPU C3 State (ACPI C2) to the operating system. During the CPU C3 State, the CPU clock generator is turned off.
Enhanced Halt State (C1E):
Select Enabled to use Enhanced Halt-State technology, which will significantly reduce CPU power consumption by reducing CPU clock cycles and voltages during a halt-state.
CPU T State Control:
ACPI (Advanced Configuration Power Interface) T-States supports CPU throttling by the operating system to reduce power consumption.
This is the QPI Configuration screen.
The main feature to look at here is CoD (Cluster-on-Die), which enhances system performance in cloud computing.
CoD reduces coherence traffic and cache-to-cache transfer latencies, and targets NUMA (non-uniform memory access) optimized workloads where latency is more important than sharing caching agents. CoD is best used for highly NUMA (non-uniform memory access) optimized workloads.
Each Home agent has ~14KB of cache, which is eight-way, 256 sets, and two-sector wide. It stores 8-bit presence vector tracking caching agent, potentially owning a copy a cache line; allocation on a cache-to-cache transfer, and tracks hit-M, hit-E, and hit-S lines, which are hotly contested cache lines.
The result is lower cache-to-cache transfer latencies, and reduced directory updates and reads of hotly contested lines. Snoop traffic is also reduced by sending directed snoops, rather than broadcasting them.
Now we are looking at the Integrated Memory Controller (IMC) screen:
Enforce POR restrictions on DDR4 frequency and voltage programming.
Enable data scrambling to enhance system performance and data integrity.
ADR (Automatic Diagnostic Repository) support enhances memory performance.
DRAM RAPL (Running Average Power Limit) Baseline:
Set the runtime power-limit baseline for DRAM modules.
Set Throttling Mode (Closed Loop Thermal Throttling):
Throttling improves CPU reliability, and reduces power consumption via automatic-voltage control during CPU idle states.
Set the A7 (Addressing) mode to improve memory performance.
Next up is the IIO Configuration settings.
EV DFX (Device Function On-Hide) Features:
The EV_DFX Lock Bits that are located on a processor will always remain clear during electric tuning.
IOU2 (II0 PCIe Port 1):
This configures the PCI-E port Bifurcation setting for a PCI-E port.
II01 PORT 1A Link Speed:
This feature configures the link speed of a PCI-E port specified by the user, Gen 1, Gen 2, Gen 3.
IOAT (Intel IO Acceleration) Configuration:
Intel I/OAT (I/O Acceleration Technology) support significantly reduces CPU overhead by leveraging CPU architectural improvements, and freeing the system resource for other tasks.
Intel VT for Directed I/O (VT-d):
The Intel Virtualization Technology provides support for Direct I/O VT-d, by reporting the I/O device assignments to the VMM (Virtual Machine Monitor) through the DMAR ACPI tables. This feature offers fully protected I/O resource sharing across Intel platforms, providing greater reliability, security, and availability in networking and data sharing.
Now we are looking at the USB Configuration screen.
This is the PCIe/PCI/PnP Configuration screen.
SR-IOV is available if the system supports Single-Root Virtualization.
With this option, the Active State Power Management (ASPM) level for PCI-E devices with auto set in the system BIOS will automatically set the ASPM level based on the system configuration.
This is the ACPI Settings screen.
Select Enabled to support the Windows Hardware Error Architecture (WHEA) platform, and provide a common infrastructure for the system to handle hardware errors within the Windows OS environment to reduce system crashes, and to enhance system recovery and health monitoring.
NUMA (Available when the OS supports this feature):
Non-Uniform Memory Access support enhances system performance.
The last screen we will look at is the Boot Configuration screen. Here you can see all of the boot options available for the system.
The IPMI 2.0 with virtual media supplies remote access over LAN and KVM, over LAN support. Be sure to have a LAN cable plugged into the Dedicated IPMI LAN port.
We find our remote access IP address located in the BIOS under the IPMI Tab. In our case, this was 126.96.36.199. Enter yours into your browser, and you will see the login screen.
To login use:
As a best practice, administrative users should change factory default login information before connecting any new server to their network.
After logging in, we come to the home screen and see system information displayed.
There is also a remote control option for iKVM.
The next tab is the Sensor Readings menu.
The Configuration menu allows you to change many features on the server, Active Directory settings, DNS, LDAP, and many more.
The power control and status menu allows you to power on, shut down, restart, and cycle the server.
The Virtual Media menu allows you to mount or share virtual media like Floppy Disks and CD-ROM images.
The Maintenance menu allows you to update the firmware, and restore factory defaults.
The Miscellaneous menu allows post snooping, SMC RAKP enable/disable, UID control, and BIOS recovery.
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