IBM X3850 X6 User Manual

142 IBM System x3850 X6 and x3950 X6 Planning and Implementation Guide
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

IBM X3850 X6 Specifications

General

Chipset	Intel C602J
Network Controller	Integrated quad-port Gigabit Ethernet
Processor	Up to four Intel Xeon E7-4800 v2 series processors or Intel Xeon E7-8800 v2 series processors
Memory	Up to 6 TB of DDR3 ECC Registered DIMMs (RDIMMs) or Load-Reduced DIMMs (LRDIMMs)
Form Factor	4U rack server
Storage	Up to 24x 2.5" hot-swap SAS/SATA HDDs or SSDs
Expansion Slots	Up to 11 PCIe 3.0 slots
Power Supply	Up to four 1400W or 900W hot-swap power supplies
Memory Type	DDR3 RDIMM/LRDIMM
Storage Controller	ServeRAID M5210 SAS/SATA controller
RAID Support	RAID 0, 1, 5, 6, 10, 50, 60
Operating System Support	Windows Server, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, VMware