The usable memory may be less than the installed memory.

Is there anyone who can help me with this problem.
What should I do to make the device read the entire usable memory.



(Sorry the system is not English, but this is a screenshot from System properties so the titles follow each other the same way.)

On the memory tab of task manager, does it show hardware reserved? That will likely explain why your system doesn't show that all memory is available for use.

Mine shows 134 Mb reserved by the hardware

Thanks for all your answer.
I thought there was a problem with my memory.

There is always some memory reserved for the GPU if you have an integral gpu with motherboard.

salim said:

What should I do to make the device read the entire usable memory....

(Sorry the system is not English....

Click to expand...

Here's your screenshot with the English titles along side it.



Are you worried that the 'Available Physical Memory' is a lot less than the 'Installed Physical Memory'? You shouldn't be. In System Information the word 'available' here means that part of the installed memory that is not already in use running your system and apps.

Compare System Information with Task Manager and you'll see that the memory in use, plus the available memory adds up to near enough the installed physical RAM. There will be a small difference due to some memory being Hardware Reserved, the system uses this to communicate with physical devices such as your display.