4g of memory installed only 2g available solutions

Many students in the upgrade installed memory, the original 4g of memory is only 3g or even 2g available, what is the reason? If you are using a 32-bit Win7 operating system, it is theoretically possible to recognize 3.25G of memory, which, of course, may be even lower if you are using an integrated video card. At present, netizens respond, in their own computer "to view the basic information about the computer" in the "Installation of memory 4g (2g available)." The following figure:

We can see that the system has recognized 4GB memory, then the initial judgment of the hardware is not a problem, the problem is on the system (this part of the memory may be automatically set to the system to retain memory of the hardware).

Workaround:

1, if the installation system for 32-bit system, due to the limitations of 32-bit system, in the use of 4g or 4g of memory can only be recognized to 3g or so, is a normal phenomenon. If you need to use more memory, you need to install a 64-bit operating system. Installed using the operating system type you can right-click on the desktop computer icon to select Properties and view system type information.

2, if the installation system is a 64-bit system, to determine the use of normal before, you can press the keyboard Windows key and R key, the interface entered the "Msconfig", click OK. The interface click "Boot" "advanced options" to see if the "Maximum Memory" is set, click the "Advanced Options" card (remove the maximum memory front hook), and then determine.

3, restart, see if you can solve it? Of course, if still not restored to 3.25G (not integrated graphics premise). Then the direct selection hook hit, set to 3.25G, that is, 3328M. If you want to perfect support 4G memory or please use 64-bit operating system!

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