Win7 system 4G memory upgrade to 8G after the hard drive only show 3.39G what to do?

Win7 system 4G memory upgrade to 8G after the hard drive only show 3.39G what to do?

1, the memory correctly inserted into the memory card slot, in accordance with an one root, composed of two channels, my is MSI motherboard, two of the RAM is Kingston DDR31600 4G, insert press the picture below. Other motherboards according to the motherboard instructions to do;

2, all kinds of wire connection, boot. Suggest a small white to select BIOS defaults when hardware is detected

3, into the Win7 system, right click on the computer icon, select Properties, view memory only 3.39G, one of the memory is not properly identified;

4, with cpu-z/Master can display two of the normal memory, and composed of two channels, indicating that the hardware is no problem, belonging to the Win7 identification problem;

5, Start menu, Command box input msconfig, open system configuration, select the boot, select advanced Options, check the largest memory, such as checked, canceled after the check, if the memory is correct, click OK restart the system;

6, in this access to my Computer properties to view, memory has shown normal.