58
J3A
J3B
J3C
J4D
DDR/SDR
DRAM Type
Selector
Short all J3A/B/C/D:
DDR1, DDR2
Open all J3A/B/C/D:
DIMM1, DIMM2
J3A/B/C/D
JP2
Wake on
Keyboard/
USB activity
1-2: 5V
2-3: 5VSB
JP2
1
JP3 Flash
ROM
Voltage
(VCC)
1-2: 5V
2-3: 3.3V
JP3
1
JP4 Flash
ROM
Size
1-2: 2M
2-3: 4M
JP4
1
JBAT1: Clear CMOS Jumper
Use this jumper to clear the contents of the CMOS memory.
You may need to clear the CMOS memory if the settings in
the Setup Utility are incorrect and prevent your mainboard
from operating. To clear the CMOS memory, disconnect all the
power cables from the mainboard and then move the jumper
cap into the CLEAR setting for a few seconds.
JP1: DRAM Voltage (VCC)
This jumper enables to select voltage of DRAM.
JP1A1: CPU Clock
This jumper enables to select CPU frequency.
JP1B1: CPU Clock
This jumper enables to select CPU frequency.