How to change a SD card into a Ram in Android

First we create Partition the SD Card Using MiniTool Partition Wizard
This tutorial explains how to partitioning the SD card using MiniTool Partition Wizard. Partitioning the SD card helps to increase the internal memory and RAM of your phone.

Procedure:

1. First download the MiniTool Partition Wizard from here.
2. Next pull the SD card from the phone, insert into the USB SD card reader.
3. Windows will inform about the new drive and the content of the drive is visible.
4. Next backup all your data and format the SD card.



CAUTION:

1. This procedure deletes everything on the SD card, so backup your internal data's first.
2. Make sure you are deleting the partition on the SD card and not on the hard drive.
3. In this tool you will see a grey icons on the bottom. Under each of them the capacity of each drive is listed and SD card has slightly different icon.
4. Hard drives on the screenshot have 465.8 GB and 74.5 GB and on the bottom the SD card with 3.8 GB capacity.

5. If you have 2 GB or smaller card select "File System:" FAT
6. If you have 4 GB or greater card select "File System:" FAT

Create all partition as primary
Select "File System:" ext2-for App2SD and
Select "File System:" swap to make swap.

7. Finally click on apply button on top left corner.
8. That's it! Now you have successfully partitioned the SD card.

After this you need to download an android app.
Swapper for Root is a good app for your phone, it does all the task itself without annoying swap partition on SD.

 In Swapper Configuration Settings, there are 3 options in it, first Active Swap on Boot, check the option, this will run the swapping every time your Android boots, second, select the Swap File Position (file system) of your SD card, preferably choose EXT partition there, third, allocate the size of Swap File Dimension, choose 256 MB or 512 MB depending upon your need.

Best part about this app, you can create, add and manage Swap memory file without swap partition on SD.