I've stuccesfull mod my bios with slics 2.1, but after it reboot n post when I press f2 button in bios setup then I see my serial number, product name, manufacturer name, & last UUID is gone! How do I restore it again? I remember my serial number cuz it's in the back of the mobo (Acer Aspire 4540) but what about product name, manufacturer n last the UUID (it replace with FFFFFF-FFFFFF-FFFFFFFF). The worse thing I didn't back up it first! Can anyone help me? Do I need to reflash with the original files from Acer? Here is the detail : Serial Number : LXPFN0CO329456O2A51601 Product Name: Aspire 4540 Manufacturer : Acer Before I mod my bios I've RW everything, if it's needed I will send, please help!