My computer has 2 512MB of RAM, why is there only 736MB of available memory? How?

It's hard to say. There are many scenarios. It's best to ask a professional to take a look.

One possibility is that your home computer uses an integrated graphics card, so that when the integrated graphics card is running, because it does not have its own video memory, the system will automatically divide a part of the memory as video memory. If you want to solve it, buy a discrete graphics card. Because the discrete graphics card has its own video memory.

Also, when the BIOS is loaded, it will take up some memory. Make this memory BIOS-specific, so you see less memory. However, it is generally not lost too much. So that's not the main thing.

It's also possible that your virtual memory is too big and part of the memory is being used as virtual memory. The solution is to make the virtual memory smaller.

The method is: My Computer" Select "Properties" in the "Advanced" tab Select "Settings" under "Performance" In the properties box that comes out, select the "Advanced" tab again Select the "Change" option in it, change the value in "Custom Size" to a little smaller than the original, and then click "Settings" to restart the computer.

This is the case. The solution is to go to the place where you bought it and change the root.

It was supposed to display 1GB or 1024MB, but your motherboard has an integrated graphics card, so the default one is divided into 256MB as video memory. The rest is 768MB. However, the BIOS and other things need to load memory, etc., and it also occupies a part of the memory, so the display is 736MB.

The virtual memory is too big...

If you see this number in the task manager, it means that the memory is being used by the page file, and if you see the number in my computer properties, then I guess your computer should be an integrated graphics card, which is called video memory by the system.

It's because your computer has an integrated graphics card (i.e., an onboard graphics card).

The graphics card needs to have a temporary access space for accessing the digital drama (cache), the independent graphics card PC board has a memory chip, while the integrated graphics card does not have it, so it can only divide a part of the space from the memory for cache.

So the missing part is cached.

It is not an integrated graphics card.

Hello: According to your description:

The total memory includes the system space and buffer area, and the system operation interface and the system operation itself occupy a certain amount of memory, so the actual available memory cannot fully display the total memory.

It is recommended that you:1Press and hold the Home button to open the RAM Manager and clean up the running apps to free up the program memory.

2.Uninstall self-installed apps.

3.Clear your phone's Internet cache: Browser - Menu key - Settings - Privacy & Security - Clear cache and clear history.

5.Clear the records of incoming calls, text messages, etc. that have been read.

6.Move multi** files to an external SD card. Operation:

1).For Android: My Files - All Files - SDCARD0 - Find the folder you want to move - Press and hold - Move to - Return to external SD - Click "Move here".

2).If you are on Android or above: Applications-My Files-All Files-Device Storage-Find the folder you want to move and open it-Menu key-Select All-Click the three horizontal bar icons-Move, return to the parent directory, click SD Memory Card-Select the relevant folder (or create a new folder)-Move here.

Note: For Android and previous versions (some Android systems do not support internal hard disks), many ** files are stored in the external SD card by default.

According to your description, you can install a memory card on your phone to expand the memory.