Table of Contents:
ASUS has implemented the Unified Extensible Firmware Interface with their P8 series of motherboards. This is the replacement for the BIOS that motherboards have been using for many years and brings support for large (Above 2.2TB) HDDs to the computer. Before the advent of UEFI, you were required to have a controller card to use drives of that size.
EZ Mode is the default mode of the BIOS Setup screen. The upper left hand corner has the System Time. To the right of that is where the name of the board, the BIOS version, the CPU type, and the Total memory on the system. To the right of that is the Build Date and clock speed of the CPU. Below that are readings for the CPU and M/B Temperature, voltage and fan speeds. Below that is the mode whether Energy Saving, Quiet or Performance. Boot device Priority is.
The Advanced Mode is where the Tweakers will want to be as it will give them the most flexibility to tweak the board. The menu bar on top gives you one click access to the Main, Ai Tweaker, Advanced, Monitor, Boot, Tool and Exit menus. The Main menu provides an overview of the basic system information and allows you to set the date, time language and security settings. The Ai Tweaker menu is where you set the overclocking settings. Here’s a chart with the included settings. I was able to overclock the 2600K CPU to over 4.6GHz without issue:
|
Setting |
Range |
|
Ai Overclock Tuner |
Auto, Manual XMP |
|
BCLK/PEG Frequency |
80-300 |
|
Memory Frequency |
Dependent on BCLK/PEG Frequency |
|
OC Tuner |
Disabled/Enabled |
|
EPU Power Saving MODE |
Enabled/Disabled |
|
EPU setting |
Auto, Light Power Saving Mode, Medium Power Setting Mode, Max Power Saving mode |
|
CPU Ratio |
Varies according to CPU |
|
EIST |
Disabled/Enabled |
|
Turbo Mode |
Disabled/Enabled |
|
Turbo Ratio |
Dependent on CPU |
|
Load-line Calibration |
Auto, Regular, Medium, High, Ultra High, Extreme |
|
VRM Fixed Frequency |
300KHz-500KHz (10KHz interval) |
|
Duty Control |
T.Probe, Extreme |
|
CPU Current Capability |
100%, 110%, 120%, 130%, 140% |
|
CPU Offset voltage |
0.005v-0.635v with 0.005v interval |
|
CPU Manual Voltage |
0.800v-1.990v with a 0.005v interval |
|
DRAM Voltage |
1.20v-2.20v with a 0.00625v interval |
|
VCCSA Voltage |
0.80v-1.70v with a 0.00625v interval |
|
VCCIO Voltage |
0.80v-1.70v with a 0.00625v interval |
|
1.8FSR voltage |
1.20v-2.20v with a 0.00625v interval |
|
PCH Voltage |
0.80v-1.70v with a 0.01v interval |
|
VTTDDR Voltage |
0.75v-0.80v with a 0.05v interval |
|
DRAM DATA Ref voltage on CHA/B |
0.395x-0.630x with a 0.05x interval |
|
DRAM CTRL REF Voltage on CHA/B |
0.395x-0.630x with a 0.05x interval |






