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Chapter 6 Diagnostic Tools 115
NVRAM IDPROM IDPROM, located on
PCI riser board
OBP Refers to OpenBoot firmware N/A
PDB Power Distribution Board Power distribution
board
PMC Power Management Controller PCI riser board
POST Power-On Self-Test N/A
RIO Multifunction integrated circuit bridging the PCI
bus with EBus and USB
PCI riser board
RTC Real-Time Clock PCI riser board
RX Receive – Communication protocol Centerplane
Safari The system interconnect architecture—that is, the
data and address buses
CPU/Memory board,
centerplane
Schizo System bus to PCI bridge integrated circuit Centerplane
Scan A means for monitoring and altering the content
of ASICs and system components, as provided for
in the IEEE 1149.1 standard
N/A
SIO SuperIO integrated circuit – Controls the SC
UART port and more
PCI riser
TX Transmit – Communication protocol Centerplane
UART Universal Asynchronous Receiver Transmitter –
Serial port hardware
Centerplane, PCI riser
board, SC card
TABLE 6-13 Abbreviations or Acronyms in Diagnostic Output (Continued)
Term Description Associated FRU(s)