ECS A770M-A, Manual

Page: 15 / 54

9
Installing the Motherboard
Checking Jumper Settings
The following illustration shows the location of the motherboard jumpers. Pin 1 is
labeled.
Jumper Settings
1. To avoid the system unstability after clearing CMOS, we recommend
users to enter the main BIOS setting page to “Load Optimal Defaults”
and then “Save Changes and Exit”.
2. Make sure the power supply provides enough 5VSB voltage before
selecting the 5VSB function.
3. It is required that users place the USBPWR_F & USBPWR_R cap onto
2-3 pin rather than 1-2 pin as default if you want to wake up the com-
puter by USB/PS2 KB/Mouse.
Front Panel
USB Power
Select Jumper
USBPWR_F
USBPWR_R
Jumper Type Description Setting (default)
CLR_CMOS 3-pin Clear CMOS
1-2: NORMAL
2-3: CLEAR CMOS
Before clearing the
CMOS, make sure to
turn off the system.
CLR_CMOS
Rear USB PS/2
Power Select
Jumper
2-3: VCC5_DUAL
1-2: VCC5
USBPWR_F
USBPWR_R
3-pin
3-pin
2-3: VCC5_DUAL
1-2: VCC5
1
1
1
B I O S _ W P
(Optional)
3-pin
BIOS Write
protect
2-3: ENABLE
1-2: DISABLE 1
BIOS_WP