4. Names and Functions of Components
Express5800/R320c-E4, R320c-M4 User's Guide
47
Chapter 1 General Description
The figure below shows internal view of CPU/IO module when duct is removed.
(1) HDD BP(Backplane)
(2) Cooling fan
(3) Processor (CPU)
Mounted below the heat sink.
(4) DIMM
Option
(5) CPU/IO board
(6) Riser card
R320c-M4 only
(7) Power unit