ECS P4VXASD2 User Manual page 12

J2A DDR/SDR
J2B DRAM Type
J2C Selector
J2D
J3A DDR/SDR
J3B DRAM Type
J3C Selector
J4D
JP2 Wake on
Keyboard/
USB activity
J13 Flash ROM Volt-
age (VCC)
JP4 Flash ROM Size
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, discon-
nect 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.
J2A/J2B/J2C/J2D: DDR/SDR DRAM Type Selector
This jumper enables to select the type of DDR or SDR DRAM.
Short all J2A/B/C/D:
J2A/B/C/D
DDR1, DDR2
Open all J2A/B/C/D:
DIMM1, DIMM2
Short all J3A/B/C/D:
J3A/B/C/D
DDR1, DDR2
Open all J3A/B/C/D:
DIMM1, DIMM2
Short 1-2: 5V
Short 2-3: 5VSB
Short 1-2: 5V
Short 2-3: 3.3V
Short 1-2: 2M
Short 2-3: 4M
8
JP2
1
J13
1
JP4
1