My desktop motherboard has a new BIOS released. Current one is E7786AMS v1.6; the new one is v1.7, which fixed some USB problem.
So as my habit, I like to keep things updated.
I downloaded the BIOS zip file from MSI official site for A55M-P33
Unzip it and put the files into a USB disk with FAT format.
Then, plugin the USB disk, restart the PC and hit DEL key to BIOS setting,click M-Flash, choose Select One File to Update BIOS.
It gave me the choice of USB disk and bios file.
I copied some information as reference.
Problem Signature 01 6.1.7600.16385
Problem Signature 02 6.1.7600.16385
Problem Signature 04 21199912
Error code 0x490
At last, I double checked the bios settings. I found the HDD mode is changed to IDE. Actually it is AHCI when I install the Windows. I changed it back to AHCI, save and restart.
Finally, it works as normal. Windows 7 loaded.
The lesson I learned is to double check the BIOS setting after updating BIOS. It will change something to default after it.