2.CPU / Northbridge overvoltage setting (3-pin OV_CPU; 3-pin OV_NB)
These jumpers allow you to enable or disable the advanced CPU and Northbridge overvoltage settings in BIOS. Read the following information before you change the jumper settings. Set to pins 1-2 to activate the advanced CPU / Northbridge overvoltage feature.
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| | | | | | | | | | | | | | | | | | | | | | | | | | | OV_CPU | OV_NB |
Pins 2-3 | (Default) | | up to 1.70V | up to 1.91V |
Pins 1-2 | (OV Enabled) | | up to 2.10V | up to 2.21V |
•Before you change the jumper settings for extra-high overvoltage ability, use the BIOS items introduced in 3.4 Ai Tweaker first to adjust the desired CPU and Northbridge performance. Make sure your system function well under the highest BIOS voltage settings before you change the setting of these two jumpers.
•Refer to 3.4 Ai Tweaker for more information about CPU and Northbridge overvoltage settings.
•DO NOT set the OV_CPU jumper to pins 1-2 when you install a new CPU and have not booted for the first time. Doing so may cause the system to halt. For system failure due to the wrong setting of the OV_CPU jumper, shut down the computer and move the cap back to pins 2-3.
•The system may need a better cooling system (for example, a water-cooling system) to work stably under high voltage settings.
2-20 | Chapter 2: Hardware information |