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Green PCI/ISA System Board
Default Settings:
J19 On: 3.3V
Jumper J22
CPU Mode Setting
Jumper J22 is used to select CPU internal frequency. You
should not change the default setting of this jumper unless
the CPU installed on the system board is 3.3V Pentium
Processor, System Base Clock frequency 50MHz.
Off:Fx1.5 (50MHz/
75MHz, 60MHz/90MHz
or 66MHz/100Mhz CPU)
(Default)
2-18 u Installation Overview
J20 Off: 3.3V
Voltage
J19
J20
3.3V *
O n
Off
3.45V
Off
O n
3.8V
Off
Off
* Default setting
J21 Off: 3.3V
J21
Off
Off
O n
On: Fx2
(50MHz/100MHz)
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