Sandy Bridge, Part 5: Asus P8P67 and P8P67 Pro Motherboards

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For enthusiasts, the options available within the UEFI/BIOS can turn a good board into a great one. The ability to manipulate frequencies, voltages, and fan control settings vary depending on the hardware and the amount of trust placed in the users' hands by the manufacturer. The P8P67 and P8P67 Pro have identical UEFI menus with the same settings offered.

AI Tweaker menu.

Voltage controls.

Monitor menu.

Manual fan control settings.

The P8P67/Pro BIOS has plenty of voltage options (we imagine that most P67 boards are similar in this regard), but you shouldn't have to tweak much other than the CPU voltage to get your overclock, as increasing the multiplier is really the only way to get a substantial increase in clock speed.

Fan control is offered on three of the four fan headers, with separate customizable settings for the one CPU and two Chassis fan headers. Our only criticism is that Chassis fans cannot be set below 60% speed in the UEFI which might not be enough — depending on the fans and the noise tolerance of the user. The CPU fan can be set to a minimum of 20%.

UEFI Summary: Asus P8P67 & P8P67 Pro
BLCK/PEG Frequency 80.0 to 300.0 MHz
Load-line Calibration (VDroop) Regular, Medium, High, Ultra High, Extreme
VRM Fixed Frequency 300 to 500 KHz in 10 KHz increments
CPU Current Capability 100%, 110%, 120%, 130%, 140%
CPU Offset Voltage
+/- 0.635V in 0.005V increments
VCCSA Voltage 0.80V to 1.70V in 0.00625V increments
VCCIO Voltage
0.80V to 1.70V in 0.00625V increments
CPU PLL Voltage 1.20V to 2.20V in 0.00625V increments (1.80V default)
PCH Voltage 0.80V to 1.70V in 0.01V increments (1.05V default)
Memory Frequency
800, 1066, 1333, 1600, 1866, 2133, 2400 MHz
DRAM Voltage 1.20 to 2.20V in 0.01V increments
Memory Timing Control Intermediate
Fan Control
CPU Fan Lower-Upper Temperature 20 to 75
CPU Fan Min-Max Duty Cycle 0% to 100%
Chassis Fan Lower-Upper Temperature 40 (fixed) to 90
Chassis Fan Min-Max Duty Cycle 60% to 100%

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