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P
PCH
Platform Controller Hub
PCI
Peripheral Component Interconnect
PCIe
Peripheral Component Interconnect express
PDU
Power Distribution Unit
PFR
Platform Firmware Resilience
PHM
Processor Heatsink Module
PHY
Physical
PMBus
Power Management Bus
POST
Power On Self Test
PSU
Power Supply Unit
PXE
Pre-boot Execution Environment
R
RAM
Random-Access Memory
RAID
Redundant Arrays of Independent Drives
RDIMM
Registered Dual In-line Memory Module
RH
Relative Humidity
ROM
Read-Only Memory
RTA
Real Time Clock
S
SAS
Serial Attached Small Computer System Interface
SATA
Serial Advanced Technology Attachment
SFP
Small Form-factor Pluggable