Oracle EXADATA X6-2, Service Manual

Page: 97 / 284

Servicing PCIe Risers (CRU)
Servicing CRUs That Require Server Power-Off 97
6.
(Optional) Use Oracle ILOM to clear server DDR4 DIMM faults.
DDR4 DIMM faults are automatically cleared after a new DIMM has been installed. If you
need to manually clear DDR4 DIMM faults, refer to the Oracle Integrated Lights Out Manager
(ILOM) 3.2 Documentation Library at
http://www.oracle.com/goto/ilom/docs
.
Note -
If you want to move a faulty DDR4 DIMM to a new DIMM socket or re-seat a DIMM
for troubleshooting, you must first manually clear the associated DIMM fault. Otherwise, the
DIMM fault might follow the DIMM to the new socket location or reoccur on the current socket
location, causing a false DIMM fault condition.
Related Information
■
“DIMM and Processor Physical Layout” on page 86
■
“DIMM Population Scenarios” on page 87
■
“DIMM Population Rules” on page 88
■
“Populating DIMMs for Optimal System Performance” on page 88
■
“DIMM Rank Classification Labels” on page 92
■
“Identify and Remove the Failed DIMM” on page 93
Servicing PCIe Risers (CRU)
PCIe cards in all slots are installed on vertical risers. You must remove the relevant riser to
remove and replace a PCIe card. You must remove all three PCIe risers when replacing the
motherboard.
Caution -
These procedures require that you handle components that are sensitive to
electrostatic discharge. This sensitivity can cause the components to fail. To avoid
damage, ensure that you follow antistatic practices as described in “Take Antistatic
Measures” on page 59 .
Caution -
Ensure that all power is removed from the server before removing or installing PCIe
risers, or damage to the PCIe cards installed in the risers might occur. You must disconnect all
power cables from the system before performing these procedures.
The following sections provide information to assist you in servicing PCIe risers:
■
“PCIe Riser Location and Differences” on page 98
■
“Remove a PCIe Riser From PCIe Slot 1 or 2” on page 99
■
“Install a PCIe Riser Into PCIe Slot 1 or 2” on page 101
■
“Remove the PCIe Riser From PCIe Slots 3 and 4” on page 103