What is the issue?

Hi all,
I'm using an r960 with 2TB of ram, so ram is not a problem here. I'm experiencing constant crashes of ollama 0.5.7 and deepseek-r1:671b, even increasing the context window with the command /set parameter num_ctx 4096.
I also tried a second system, an r670 csp with 1TB of ram, but the problem occurs in the same way.
I'm not able to use gpu due to the massive size of the model, anyway plenty of cores do the job for my current pourposes.

os are ubuntu 22.04.5 and 24.04.1

OS

Linux

GPU

No response

CPU

Intel

Ollama version

0.5.7