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DDR3 Can't be mapped

Question asked by kun zhang on Feb 8, 2017
Latest reply on Feb 9, 2017 by ufedor

We have made a board with a T4240. On the board, we installed a DDR3_ SODIMM slot, and we used one  4GB DDR3L-1600 CL9  204-Pin  SODIMM  ( see figure 2 ).  But when we do DDR initialization, the serial communication interface shows a message"2 GB left unmapped"(See figure 1).   Why?

 

Figure 1

Figure1

 

Figure2

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