ECS 661FX-M Deluxe, Manual, Page: 12 / 42

7
Installing the Motherboard
Jumper Settings
Jumper Type Description Setting (default)
JP1 3-pin CLEAR CMOS
1-2: Normal
2-3: Clear
Before cleaning the
CMOS, make sure to
turn the system off.
1-2: Write Enable
2-3: Write Disable
JP1
1
JP3
1
Connecting Case Components
After you have installed the motherboard into a case, you can begin con-
necting the motherboard components. Refer to the following:
1 . Connect the CPU cooling fan cable to CPUFAN1.
2 . Connect the case cooling fan connector to CASFAN1.
3. Connect the case speaker cable to SPK1.
4. Connect the case switches and indicator LEDs to the PANEL1.
5. Connect the standard power supply connector to ATX1.
6. Connect the auxiliary case power supply connector to ATX2.
JP3 3-pin
BIOS PROTECT
JP1: Clear CMOS jumper
This jumper is to clear the contents of CMOS RAM. You may need to
clear the CMOS memory if the settings in the Setup Utility are incorrect
that prevents your motherboard from operating. To clear the CMOS
RAM, disconnect all the power cables from the motherboard then move
the jumper cap into the CLEAR setting for a few seconds and move the
jumper cap to normal state.
JP3: BIOS Protect jumper
This jumper enables you to prevent the BIOS from being updated (flashed)
SHort pin 1-2 if you are going to update your BIOS. After updating the
BIOS, short pin 2-3 to protect the BIOS from being flashed.