Checking Jumper Settings - ECS Z77H2-A3 User Manual

2-3. Checking Jumper Settings

The following illustration shows the location of the motherboard jumpers. Pin 1 is
labeled.
To avoid the system instability after clearing CMOS, we recommend users to
enter the main BIOS setting page to "Load Default Settings" and then "Save
and Exit Setup".
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Z77H2-A3 USER MANUAL