Jumpers - ECS PF21 Extreme User Manual

1.7 Jumpers

1. BIOS_WP1 (Flash Protect)
This jumper enables you to prevent the BIOS from being updated
(flashed).
Open: Disable (Default)
Short: Enable
2. JP1 (Clear CMOS)
This jumper allows you to clear the Real Time Clock (RTC) RAM in
CMOS. You can clear the CMOS memory of date, time, and system
setup parameters by erasing the CMOS RAM data. Before
clearing the CMOS data, make sure to turn the system off.
3. JP10 (Clear RTC) (Optional)
This jumper allows you to clear the Real Time Clock (RTC) RAM in
CMOS.
1-13