ECS P4VMM2 User Manual page 16

JBAT1: Clear CMOS Jumper
This jumper is to clear the contents of CMOS memory. You may need to clear
the CMOS memory if the settings in the Setup Utility are incorrect that pre-
vents 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.
Function
Normal
Clear CMOS
JP1A1, JP1B1: CPU Clock
This jumper enables to select CPU frequency.
CPU Clock
100M
133M
JP2: Keyboard Power On
This jumper enables any keyboard activity to power up a system previously in
a standby or sleep state.
Function
5V
5VSB
J1: USB Card Reader Voltage Selector (VCC)
This jumper enables to select voltage of the USB Card Reader.
Function Jumper Setting
5V Short Pins 1-2
5VSB Short Pins 2-3
Jumper Setting
Short Pins 1-2
Short Pins 2-3
JP1A1
Short Pins 1-2
Short Pins 2-3
Jumper Setting
Short Pins 1-2
Short Pins 2-3
12
JP1B1
Short Pins 2-3
Short Pins 1-2