There are three jumpers that need to be modified to change the board configuration from the default mode of using 3.3V Flash chips to using 1.8V chips. Jumpers J10 and J12 can be changed by moving the jumper cap, while J14 is a trace-link jumper and will need to be cut. Figure 4-8. R2 Revision - Jumpers for Settings 1.8V SPI Operation
Note: Pin 1 is indicated by the dot near the connector
The diagram above shows the 3.3V default settings. To power VTR1 with 1.8V, move jumper J10 from the (1-2) position to the (2-3) position. Note that this power setting must match the BMC Host power setting. To Power VTR2 with 1.8V, move the jumper cap on J12 from the (1-2) position to the (2-3) position and modify the J14 trace-link jumper. To modify J14, cut the trace between positions (1-2) and place a 0603 zero-ohm resistor at position (2-3). Both of these must be set to the same voltage level.
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