Is there a way to Unlock advance menu Toshiba A105 in order to Change Memory mapping on Toshiba A105 Hi there great masters of Bios modding. I want to ask You will it be possible to Change Memory mapping in Bios on Toshiba A105 -s4054 or PSAA8U. It is a Intel 945 chipset with a Intel T7200 CPU. I am using 4 Gb of Ram, the bios sees the whole amount of the ram but Windows 2.99 usable, due to chipset limitation in bios. Can You help me?