I am trying to access my computer's bios so i can boot from my usb drive but nothing I have tried works. A few years ago my computer crashed and so they changed a few things. The logo that comes up when I boot it is "AMD Extreme..." and I am not prompted to access the bios. My system info says that my bios version Phoenix Technologies, LTD 6.00 PG. I have tried pressing Esc, F1, F2, F10, Ctrl+Alt+Esc, Ctrl+Alt+Ins, and Ctrl+Alt+S during the boot. But I am not sure when exactly I'm supposed to press them either. Any ideas on what I should do?