Shuttle MV43 - DDR;SDR DRAM Type Selector(J2 A;B;C;D,J3 A;B;C;D); DRAM Voltage Setting (JP1)

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DRAM Voltage Setting (VCC) (JP1) & DDR/SDR DRAM Type
Selector (J2A/B/C/D, J3A/B/C/D)
JP1 is set to select voltage of DRAM.
J2A/B/C/D and J3A/B/C/D are set to select the type of DDR or SDR DRAM.
Open Pins 1-2 (2.5V DDR)
Short Pins 1-2 (3V SDR)
Note: You may use SDRAM or DDR SDRAM, but you can't use them
simultaneously.
A3
JP1
JP1
JP1
J2A/B/C/D
J3A/B/C/D
1
When SDRAM is
installed, please
open all J2A/B/C/D
and J3A/B/C/D pins
as below
When DDR SDRAM
is installed, please
short all J2A/B/C/D
and J3A/B/C/D pins
as below
Open
J2A/B/C/D
J3A/B/C/D
Short
J2A/B/C/D
J3A/B/C/D