
Identifying FRUs in SPARC Enterprise T5220 Servers 197
Thefollowing tableidentifies the components located on the motherboard and pointsto instructions for servicing them.TABLE: MotherboardComponents (SPARC Enterprise T5220 Servers)
Item FRU ReplacementInstructions Notes FRUName (If Applicable)
1 Removable back
panel crossbeam
“Servicing PCIe/XAUI
Risers” on page 102
Remove this to service
PCIe/XAUI risers and
cards.
N/A
2 PCIe/XAUI risers “Servicing PCIe/XAUI
Risers” on page 102
Back panel PCI cross
beam must be removed
to access risers.
/SYS/MB/RISER0
/SYS/MB/RISER1
/SYS/MB/RISER2
3 PCIe filler panel “Servicing PCIe/XAUI
Risers” on page 102
Must be installed in
blank PCI slots.
N/A
4 Battery “Servicing the Battery”
on page 112
Necessary for system
clock and other
functions.
/SYS/MB/V_VBAT
5 FB-DIMMs “Identify Faulty
FB-DIMMs Using the
show faulty
Command” on page 83
“Identify Faulty
FB-DIMMs Using the
FB-DIMM Fault Locator
Button” on page 83
See configurationrules
beforeupgrading
FB-DIMMs.
See “FB-DIMM Configuration
Guidelines” on page 95
6 SCC module “Servicing the SCC
Module” on page 114
Contains host ID, MAC
addresses,and service
processorconfiguration
data.
/SYS/MB/SC/SCC_NVRAM
7 Motherboard
assembly
“Servicing the
MotherboardAssembly”
on page 117
Must be removedto
access power
distribution board,
power supply
backplane, and paddle
card.
/SYS/MB