Instructions to increase virtual RAM for Droid4x with VirtualBox to reduce lag

Many people use Droid4X to emulate Android on Windows, but when running heavy applications, the device is easily overloaded.

How to increase virtual RAM for Droid4x with VirtualBox

Method 1: Increase on VirtualBox software

Step 1:  Start VirtualBox

By default, VirtualBox is installed at: C:Program FilesOracleVirtualBox

You can:

- Open each folder according to the above path.

- Or copy the path, paste it into the address bar of any Windows window, and then press Enter.

In the VirtualBox folder, find VirtualBox.exe and click to launch it.

Step 2:  Open Settings

After starting VirtualBox, be sure to disable Droid4X before continuing.

At the main interface, click on the gear icon (Setting) =>  select System from the list on the left.

Step 3:   Increase virtual RAM for Droid4X

In the Motherboard tab , look for Base Memory . By default, RAM is set to 1024 MB (1GB),  the minimum that works.

You can:

- Drag the slider or

- Enter the desired RAM capacity directly into the box next to it.

Click OK to save changes.

Method 2: Increase virtual RAM right in the program

Step 1:  Access Droid4X settings

Click on the gear icon on the Taskbar of Droid4X. The settings window appears with 3 tabs:

- Basic Setting : Adjust image and sound.

- Other Setting : Hardware and software settings.

- Close Option : Set options when closing Droid4X.

Select Other Setting .

Step 2:   Setup in Droid4X

In Optimized Settings , find Memory . Click the box next to it, enter the amount of RAM => click Save .

After performing the above steps, the performance of Droid4X will be improved, helping the device run smoother when handling heavy tasks. If you encounter errors during use, you can refer to the guide to fix  Droid4X errors . Wish you a good experience and don't forget to leave a comment if you need support!

Kareem Winters

Update 05 March 2025