I have 4 1 gb sticks of Crucial ddr2 8500 in my board, a P5W-DH, in system information on bios it says 4096 total, appropriated 896 mb available 3200 mb, I am using windows vista home premium by the way, 32 bit, I expected that of operating system, but expected all memory available in bios, is their something I need to adjust?