Question: I am using Intel® chipset X48 / X38 / P45 / P43 / G43 / P35 / G31 / P965 series motherboard with 4GB memory modules installed. But it always detects the memory size as 3GB instead of 4GB at POST screen. What should I do?(10/23/2008) Answer: Please enter BIOS setup and enable the "Memory Remap Feature" option.
(BIOS / Advanced / Chipset Configuration / Memory Remap Feature)