ASUS MAXIMUS III Formula Motherboard Review :: BIOS and Overclocking

09-07-2009 · Category: Motherboards

By Benjamin Sun

ASUS uses their version of the American Megatrends AMIBIOS. The Main menu is split into Extreme Tweaker, Main, Advanced, Power, Boot, and Tools. The main menu has the Time, date, detected drives, Storage Configuration and System information. Here is where you set the Intel RAID on the PCH. The Advanced menu is where the CPU features are enabled and where the onboard devices are detected.


ASUS MAXIMUS III Formula Motherboard Review Battery

Battery

ASUS MAXIMUS III Formula Motherboard Review Power and Reset buttons

Power and Reset buttons


Power is where the ACPI settings are set. Here is also where the Hardware Monitor showing the system temperatures, voltages and fan speeds. The Boot Menu is where you set your Boot Device priority, and enable Quick Boot. The Tools menu is where the Speeding HDD settings are, the CPU OC Profiles are set, the AI NET 2, the EZ Flash 2 and MemPerfect settings are set.

The heart of the tweaker will want to use the Extreme Tweaker menu. Here you have control over virtually every facet of the motherboard including Voltages, fan speeds, clock speeds for the CPU, memory timings and much more. ASUS has implemented their CPU Level Up feature here. With an Intel Core i5 750, I was able to use the Lynnfield 2.93GHz setting. Setting the 750 to the Lynnfield 3.2GHz setting caused the system not to boot. Here’s a chart showing the various settings in the BIOS:


Part Number MA785MT-UD2H
Setting Range
AI Overclock Manual, Auto, XMP, CPU Level Up, Memory Level Up
CPU Ratio settingAccording to CPU
BCLK Frequency 80-500
PCIE Frequency100-200
QPI Frequency 4270, 4800MHz
DRAM Frequency 800, 1066,1333
CPU Clock Amplitude Auto, 700mV. 800mV, 900mV, 1000mV
PCH Clock Amplitude Auto, 700mV. 800mV, 900mV, 1000mV
CPU Clock Skew Auto, Normal, Delay 100ps-Delay 1500ps
PCH Clock SkewAuto, Normal, Delay 100ps-Delay 1500ps
CPU PLL Voltage 1.60325V-2.50425V
IMC Voltage 1.07v-2.00075v
PCH Voltage1.07v-1.35150v
DRAM Voltage 1.35150v-2.50425v
DRAM DATA REF Voltage on CHA/B -157.5mV-+200mV
DRAM CTRL REF Voltage on CHA/B -157.5mV-+200mV

Bios Screenshots


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