Uefi Settings For Performance - IBM x3850 X6 Planning And Implementation Manual

5.2 UEFI settings for performance

The Unified Extensible Firmware Interface (UEFI) is the interface between the operating
system (OS) and platform firmware. UEFI provides a modern, well-defined environment for
booting an OS and running pre-boot applications.
UEFI is effectively the replacement for BIOS. BIOS has been around for many years but was
not designed to handle the amount of hardware that can be added to a server today. New IBM
System x models implement UEFI to take advantage of its advanced features. You can obtain
more information about UEFI at this website:
http://www.uefi.org/home/
The UEFI page is accessed by pressing F1 during the system initializing process, as shown
in Figure 5-11.
Figure 5-11 UEFI window on system start-up
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IBM System x3850 X6 and x3950 X6 Planning and Implementation Guide