Appendix F. Abbreviations and acronyms
The following table lists major abbreviations and acronyms used in this document together with their full
terms.
Abbreviation or acronym Full term
BIOS Basic Input Output System
CPU
central processing unit
CRT Cathode Ray Tube
CRU Customer Replaceable Unit
DDR4 double data rate 4
ECC Error Checking and Correcting
EMI electromagnetic interference
ESD
electrostatic discharge
FCC Federal Communications Commission
GPU
graphics processing units
HBA Host Bus Adapter
HDD hard disk drive
HTML Hypertext Markup Language
ICE Intelligent Cooling Engine
I/O Input/Output
LAN local area network
LED light-emitting diode
LLW Lenovo Limited Warranty
Mbps megabits per second
NOS
network operating system
PCIe Peripheral Component Interconnect Express
PDF Portable Document Format
POST power-on self-test
PXE Preboot Execution Environment
RAID Redundant Array of Independent Disks
RAS
Reliability, availability, and serviceability
RDIMM registered dual inline memory module
ROM
read-only memory
RoHS Restriction of Hazardous Substances Directive
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