Asus P8Z77-V PRO/THUNDERBOLT User Manual page 46

2. CPU / DRAM overvoltage setting (3-pin OV_CPU/DRAM)
This jumper allows you to enable or disable the advanced CPU and DRAM overvoltage
settings in BIOS.
Pins 1-2 (Default)
Pins 2-3 (OV Enabled)
• Before you change the jumper settings for extra-high overvoltage ability, use the BIOS
• DO NOT set the OV_CPU/DRAM jumper to pins 2-3 when you install a new CPU and
• According to Intel CPU specifications, DIMMs with voltage requirement over 1.65V may
• The system may need a better cooling system (for example, a water cooling system) to
2-22
OV_CPU
0.8V - 1.92V
0.8V - 2.3V
items first to adjust the desired CPU and DRAM performance. Ensure that your
system functions well under the highest BIOS voltage settings before you change the
settings.
have not booted for the first time. Doing so may halt the system. For system failure
due to wrong setting of the OV_CPU/DRAM jumper, shut down your computer and
insert the jumper cap back to pins 1-2.
damage the CPU permanently. We recommend you ro install the DIMMs with the
voltage requirement below 1.65V.
work efficiently under high voltage settings.
OV_DRAM
1.2V - 1.92V
1.2V - 2.3V
Chapter 2: Hardware information