if your "FX" am3 + processor does not start to tip to update the BIOS without OS: download bios from the site msi: msi.com of: there is a motherboard selector, then look for the latest bios (the most recent date) format a key USB FAT32 and copy the bios (in principle. something H) to the root of de key usb, usb clée put on the pc which we want to update the bios (CM 760GM-P23 FX) start the PC, press "del" (you enter the bios), go to "FLASH-M" or sth like that and select "Update BIOS" bios must see the presence of de key usb and displays the name of the bios: the one we downloaded: confirm the "flashing" flash it then it can then redémarre..ON prsser F2 to put the original settings, advised.