Oracle Database Appliance Service Manual page 69

For the best performance, if you combine 1333 MHz and 1600 MHz DIMMs in a single system,
they should be configured so that P0 and P1 have the same mixture, in the same DIMM slots.
For example, in a 1333 MHz system, if you replace P0, D0 with a 1600 MHz DIMM, you
should also replace P1, D0 with a 1600 MHz DIMM.
The server node supports a maximum memory speed of 1333 MHz, even if 1600 MHz DIMMs
are installed.
3. Ensure that the ejector tabs are in the open position.
Align the replacement DIMM with the connector.
4.
Chapter 4 • Servicing CRUs That Require Server Node Power Off
Install DIMMs
69