Rendering is not using my system to its full potential

[AltaRD]

Hi,

I have a relatively simiple after effects project that is doing the RAM previews pretty quickly but the real rendering is extraordinarily slow. I have 20 cores and 64 gigs of RAM and an Nvidia RTX 4000...Media Encoder or After Effects, they both act the same when I check the performance of the system I see the system is used only at 30%...RAM, CPU, and GPU...any reasons? Is anything I can do to improve the render time by making the after effects to use more of the powers of the machine?

Thank you..

[Rick Gerard]

If you want to utilize more cores and more of your system's power you have to use a background rendering option. I have several but I prefer and use Render Garden for all comps that take longer than about a second a frame to render. That means most of my work is rendered using Render Garden. The big advantage: You can continue to use AE while rendering with an imperceptible reduction in performance. Except for the faster running cooling fan, you would never know you were rendering.

[AltaRD]

Thank you very much for your suggestion. I actually installed Render Garden and followed their tutorials on how to install and setup it.

I am using only one machine, all is local...and I am getting this 

aerender ERROR An existing connection was forcibly closed by the remote host.
: Unable to receive at line 430
aerender ERROR: After Effects can not render for aerender. Another instance of aerender, or another script, may be running; or, AE may be waiting for response from a modal dialog, or for a render to complete. Try running aerender without the -reuse flag to invoke a separate instance of After Effects

Error code returned: 1

RENDER FAILED

Could you please help with a piece of advice? The CPU is loaded 100% and keeps 'rendering' this error messages constantly in a loop...

Thank you..

[OussK]

The support on render garden is very good so try to contact him and ask for a solution, also another option you can try this powerful script https://aescripts.com/bg-renderer/