The Oracle Server X6-2M serviceable components, and access to those components, are mostly the same as the Oracle Server X6-2.
Refer to the following service documentation to service CRUs:
Servicing storage drives and fan modules at:
http://docs.oracle.com/cd/E62159_01/html/E62171/ceihcaeg.html#scrolltoc
Servicing batteries, DIMMs, PCIe risers and cards, and flash drives at:
http://docs.oracle.com/cd/E62159_01/html/E62171/z4000020165586.html#scrolltoc
General servicing and monitoring at:http://docs.oracle.com/cd/E62159_01/html/E62171/index.html.