SOYO Super 7 SY-5EMA+ User's Manual & Technical Reference page 26

Hardware Setup
Step 5. Set JP8,JP9,JP10 for SDRAM frequency
JP8 is used to indicate the frequency of the CPU bus clock to the
ETEQ chipset.
JP9 and JP10 are used to determine that the SDRAM is running at
the frequency of the CPU bus clock or the AGP clock.
CPU BUS AGP BUS
Clock Clock
66MHz 66MHz
75MHz 75MHz
83MHz 55MHz
95MHz 63.4MHz
100MHz 66MHz
112MHz 75MHz
124MHz 82.6MHz
Note: Use 8ns or faster SDRAM modules (PC100 compliant) when
SDRAM is set to run at the frequency of 95/100 MHz.
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JP10 JP8 JP9
1-2 2-3 2-3
1-2 2-3 2-3
2-3 1-2 1-2
1-2 1-2 2-3
2-3 1-2 1-2
1-2 1-2 2-3
2-3 1-2 1-2
1-2 1-2 2-3
2-3 1-2 1-2
1-2 1-2 2-3
2-3 1-2 1-2
1-2 1-2 2-3
21
SY-5EMA+ V1.0
SDRAM Clock
66MHz
75MHz
55MHz
83MHz
63.4MHz
95MHz
66MHz
100MHz
75MHz
112MHz
82.6MHz
124MHz