Satellite A100 - 847 PSAA9E - 4 GB of ram, but it reads only 3 GB Win 64 bit

I have the laptop A100-847-PSAA9E-0R101QAR and I have 4 GB of ram installed on it.
Yesterday, I installed Win7 64-bit system but when I check the properties of the computer, I see only:

Installed memory (Ram): 4 GB (3.00 GB usable)
System type: 64-bit Operating System

What should I do to use my full 4 GB of ram?

Hello

To be abele to use 4 GB of RAM, three components of the laptop should support the 4 GB.

-OS Win
-Chipset
-BIOS

If one of these parts would not support 4 GB of RAM then you will not be able to get full access 4 GB.

You use Win 64 bit that s ok so now only the chipset or BIOS can cause this problem
Check the chipset and the Intel page research if the chipset is 4 GB of RAM capable.
If the chipset would be 4 GB RAM capable then the question is releated to the BIOS.

Good bye

Tags: Toshiba

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