Like most modern motherboards on the market today, the ASRock H55DE3 uses an American Megatrends Inc. BIOS that has been flashed to BIOS 2.20, which fixes the following issues:
- Adds SATA3 Code
- Improves Turbo 50 compatibility
OC Tweaker menu includes CPU EZ OC and Memory EZ OC options. Users can also manually overclock the CPU and memory by changing the Overclock Mode to manual.
QPI frequencies can be manually set to Auto, 4.8GT, or 4.266GT
DRAM frequencies can be manually set between Auto and DDR3-800 to DDR3-1600. (Note: The board has higher memory overclocking capabilities that can be adjusted to DDR3-2400 using the Memory EZ OC option.)
CPU voltages can be manually adjusted in .00625v increments
DRAM voltages can manually be adjusted from 1.3v to 2.05v
Onboard GFX voltages can be adjusted between 0mV and 300mV
User Default settings can be saved when overclockers have manually adjusted their settings and produced a stable overclock. These profiles are handy when you want to keep a stable configuration, but also continue to find new stable configurations to increase a system’s performance.
Advanced Menu options
The CPU Configuration tab outlines key features that users can tweak to get higher overclocks. Some features to consider changing include the CPU ratio, Intel Virtualization Tech, Intel Speedstep, and Intel C-State tech.
Base Clock can be adjusted between 100MHz and 300MHz
ACPI Settings under Advanced Menu
Storage Configuration options under Advanced Menu
Hardware Monitor menu gives users detailed information about CPU and motherboard temps as well as data on voltages and fan speeds.
Boot Settings Menu
CPU EZ OC options range from 3.6GHz to 4.2GHz. This feature dynamically overclocks the CPU by increasing the base clock, adjusting CPU ratio, and manually increasing the CPU voltage.
Memory EZ OC option dynamically adjusts memory speeds from DDR3-1866 to DDR3-2400.