BIOS UPDATE UTILITY BIOS
3-45
BMC Baseboard Management Controller.
BSP
Boot strap processor. The processor selected at boot time to be the primary processor in
a multi-processor system.
CATERR Catastrophic Error Signal.
CE Correctable Error (memory ECC error).
CMOS Complementary Metal-oxide-semiconductor.
COM1 Communication Port 1, serial port 1.
DCA Direct Cache Access.
DDR3 Double Data Rate 3 is a high bandwidth memory technology.
DIMM
Dual In-line Memory Module, a plug-in memory module with signal and power pins on
both sides of the internal printed circuit board (front and back).
DMA Direct Memory Access.
DMI Direct Media Interface – connection from the processor to the PCH.
DRAM Dynamic Random Access Memory, memory chips from which DIMMs are constructed.
DXE
Driver Execution Environment. Component of Intel® Platform Innovation Framework for
EFI architecture.
ECC
Error Correction Code. Refers to a memory system that has extra bit(s) to support limited
detection/correction of memory errors.
EEPROM Electrically Erasable Programmable Read Only Memory – called “Flash memory”.
EFI Extensible Firmware Interface (see also UEFI).
EHCI Enhanced Host Controller Interface, a USB controller standard.
Flash Short for “Flash Memory”, solid-state memory based on EEPROMs.
FRU Field Replaceable Unit.
FV Firmware Volume.
GbE Gigabit Ethernet, an Ethernet connection operating at gigabit/second speed.
GUID Globally Unique Identifier.
HotKey
A “HotKey” is a key combination recognized as an unprompted command input. For
example, pressing <F2> during POST will take the operator to the Setup Utility.
HT Intel® Hyper-Threading Technology.
IBMC Integrated Baseboard Management Controller.
ICH I/O Control Hub, a chipset component.
IDE Integrated Drive Electronics, a disk interface standard.
IIO Integrated I/O – I/O controller integrated into the processor chip.
IMC Integrated Memory Controller – memory controller integrated into the processor chip.
INTR Interrupt Request.
I/O Input/Output.
IPMI
Intelligent Platform Management Interface – an industry standard that defines standard-
ized, abstracted interfaces to platform management hardware.
Table 39: Terminology (Continued)
Term Description
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