回答
Please make sure JP8/JP9 are set to 2-3, 2-3. JP8 & JP9 is "CPU Frequency Select Jumper" which enables you to set "CPU frequency" as follows.
JP8 JP9 CPU Frequency
Short 1-2 Short 1-2 = 100MHz
Short 2-3 Short 1-2 = 133MHz
Short 1-2 Short 2-3 = Not Applicable
Short 2-3 Short 2-3 = 166MHz
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