low memory crash

[Majed Qusailah]

whenever I use after effects specially Mocha it crashes down and says my 16 Ram isn"t enough

[RobShultz]

Go into preferences and try changing the Memory settings. Edit/Preferences on Windows or After Effects/Preferences on Mac.

[Warren Heaton]

What is the frame size of the source footage, the duration of the source footage, and the frame size of the Composition?

If the source is a short 1080p Clip in a 1080p Comp, I'd expect 16GB to maybe be enough.  

To work with 2160p or more in a 2160p Comp, I'd expect needing 32GB or more and hopefully be on a workstation with 64GB or 128GB.

[nishu_kush]

Agree with what the experts suggested. Let us know how it goes.

Moving the thread from Bugs to Discussions for now.

Thanks,

Nishu

[OussK]

Using After Effects and Mocha with only 16GB of RAM can be challenging, especially for complex projects or high-resolution footage. However, there are several strategies you can employ to optimize performance and minimize crashes:

Optimize RAM Usage:

Adjust RAM Allocation: Go to Edit > Preferences > Memory & Performance and adjust the RAM allocation. Ensure that After Effects has enough RAM available while leaving some for the operating system.
Enable Disk Cache: Make sure the disk cache is enabled and set to a fast drive (preferably an SSD). Go to Edit > Preferences > Media & Disk Cache and adjust the cache size and location.
Purge Memory and Disk Cache: Regularly purge memory and disk cache (Edit > Purge > All Memory & Disk Cache) to free up resources.
Optimize Project Settings:

Lower Resolution and Bit Depth: Work with lower resolution proxies and lower bit depth during the editing process. You can switch back to full resolution and bit depth when rendering the final output.
Trim Project: Trim down your project by removing unused footage and layers. This reduces the amount of data After Effects needs to manage.
Use Efficient Workflow with Mocha:

Pre-Render Clips: If you're using Mocha for tracking or rotoscoping, consider pre-rendering clips before applying Mocha. This reduces the processing load during editing.
Reduce Input Footage Size: Use lower resolution or downscaled versions of your footage while working in Mocha. You can reapply the tracking data to the full-resolution footage later.
Close Unnecessary Applications:

Close any unnecessary applications running in the background to free up system resources for After Effects and Mocha.