BIOS Features
MSI uses a modified American Megatrends Inc. BIOS with the H55M-ED55 motherboard. We flashed the board to the latest BIOS version, which is 1.4 as of June 30, 2010. This version includes updated CPU micro code, improved memory compatibility, and fixed issues with the board reporting incorrect HDD sizes when they are used in AHCI mode.
Main Menu
Standard CMOS Features Menu
System Information Submenu
Advanced BIOS Features Menu
Integrated Peripherals Menu
Power Management Setup Menu
H/W Monitor Menu
Green Power Submenu
Cell Menu (includes main overclocking options for CPU and memory)
CPU Feature Submenu (includes options for changing CPU power options like EIST, C-State, and C1E support. These are important to know about if you want to get higher overclocks.)
Base Clock Frequency option (Can be adjusted between 100 and 600MHz)
OC Genie Button Operation (enable or disable one-touch overclocking button on motherboard)
DIMM1 Memory SPD Information
Advance DRAM Configuration Submenu to manually adjust memory timings
Spread Spectrum option
CPU Voltage can be configured between .006v and .303v
DRAM voltages can be configured to run between .986v and 1.898v (Note: Most DDR3 memory is recommended to run no higher than 1.65v)
M-Flash Menu allows users to back up the BIOS to a USB drive
Overclocking Profile (Users can save up to six profiles)


