What happens in a Linux system if you try to perform an operation with the sound off and reach the memory limit?

If sound is disabled in Linux (for example, the sound card is not used or drivers are not loaded), it does not affect the system's operation with RAM.

If the system reaches the limit of RAM (RAM), the behavior depends on the settings and the presence of swap:

• If there is no free memory and swap is absent or full, the system may start killing processes using the OOM Killer (Out Of Memory Killer) to free memory.
• If swap exists, the system will use it, slowing down the operation but preventing abrupt termination of processes.

Thus, disabling sound does not affect memory management. When the memory limit is reached, Linux tries to free memory using swap or by killing processes to avoid system crash.