Answer
To successfully clear CMOS data on PX1, please follow the steps below:
1. Cut off the power supply by one of the following ways.
A. Unplug power cord from Power supply.
B. Unplug 20+ 4 cable from the M/B.
C. Turn off 1/0 switch from power supply
2. Move jumper JP1's cap from pin 2~3 to pin 1~2.
3. Wait for 30 seconds & then return the cap back to pin 2~3.
4. Plug in the power cord/cable or turn on the power switch & boot up the system.
5. You will see "CMOS Checksum error--Defauls loaded". That means the CMOS data is completely cleared. You can access "BIOS Setup" and "Load Optimized Defaults" to run the system.
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