Oracle EXADATA X5-8, Service Manual, Page: 161 / 278

Remove a Heatsink and Processor (FRU)
CMOD) or 64 DIMMs (8-CMOD) have been added across all CMODs in the configuration,
go back to CMOD 0 for the next set of eight and continue this population pattern.
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Each CMOD must only contain one size of DIMM. Mixing of different size memory within
a CMOD is not allowed; however, size mixing between CMODs is allowed.
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Mixing of LVDIMM and LRDIMM in the same chassis is not allowed.
DIMM Slot Population Order
The DIMM slot population order is as follows:
Note -
Always populate the DIMM slot furthest from the memory buffer first.
1. Populate the slots with black slots and black levers: D0, D3, D6, D9, D12, D15, D18, D21
The slot population for the minimum DIMM configuration is D0/D6/D12/D18 per CMOD
2. Populate the slots with black slots and white levers: D1, D4, D7, D10, D13, D16, D19, D22
3. Populate the white slot, white lever slots: D2, D5, D8, D11, D14, D17, D20, D23
Remove a Heatsink and Processor (FRU)
Heatsinks and processors are field-replaceable units (FRUs) and must be serviced by an Oracle
Service person.
This procedure uses the CPU fault remind test circuit. The circuit is a charged, time-limited
circuit. Once power is removed from the server, you have 10 minutes to use the circuit.
Before You Begin
For component serviceability, locations, and designations, see “Component Locations, and
Designations” on page 79 .
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Obtain a Phillips screwdriver and an anti-static wrist strap.
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This procedure requires the use of the CPU Replacement tool (part number: 7080240). A
tool is shipped with replacement CPUs.
Tip -
For an overview video on using the CPU replacement tool, see Replacing a Heatsink and
CPU .
1. Prepare the server for warm or cold service. See “Prepare the Server for Warm
Service” on page 96 or “Prepare the Server for Cold Service” on page 98 .
Servicing Components 161