SIMB-M21 User Manual 16
4. Connect the CPU fan cable to the connector on the motherboard labeled
CPU_FAN.
2.5 System Memory
2.5.1 Overview
The motherboard comes with four 204-pin Double Data Rate 3 (DDR3) Small Outline
Dual Inline Memory Modules (SO-DIMM) sockets.
A DDR3 module has the same physical dimensions as a DDR SO-DIMM but has a
204-pin footprint compared to the 204-pin DDR2 DIMM. DDR3 DIMMs are notched
differently to prevent installation on a DDR2 DIMM socket. The following figure illus-
trates the location of the sockets:
Important! Do not forget to connect the CPU fan connector! Hardware monitoring
errors can occur if you fail to plug this connector.