Specifications

9
2.3 CPU setting of SSC-5x86H Ver.C
If you want to upgrade the CPU, you must do two things:
1. Set the jumpers for CPU type.
2. Adjust the jumpers setting for CPU speed.
• CPU Type Setting:
CPU Type JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP8 JP9
Intel DX4 &E 2-3 2-3 3-4 3-4 3-4 OFF OFF 1-2 ON
* Cyrix 5x86
AMD DX4+
(SV8B)
Intel DX2/DX4
&EW
SGS
ST486DX4V
ST486DX2V
2-3 2-3 3-4 3-4 3-4 5-6 2-3 2-3 ON
Cyrix/TI/SGS
DX2/DX4
2-3 2-3 5-6 5-6 5-6 1-2 1-2 1-2 ON
AMD DX2/DX4
(NV8T)
2-3 2-3 OFF OFF 1-2 OFF OFF 1-2 OFF
AMD
DX2+(SV8B)
AM5x86 P75
(133Mhz)
2-3 2-3 3-4 3-4 3-4 1-3
5-6
2-3 2-3 ON
(*) : default setting
ON=CLOSE OFF=OPEN JP10 : OPEN
• CPU Clock Setting :
CPU
Clock
JP12 JP14 JP11
1-2
JP11
3-4
25MHz OPEN 1-2 OPEN OPEN
* 33MHz OPEN 1-2 CLOSE CLOSE
40MHz CLOSE 2-3 OPEN CLOSE
(*): default setting
Note :
DX2-66/DX4-100/5x86-100 sets CPU Clock - 33Mhz
AMD 5x86 P75(133MHz) sets CPU Clock - 33MHz
DX2-80/DX4-120/5x86-120 sets CPU Clock - 40MHz
• CPU Voltage Selection - 3.3V, or 3.45V