Anyone happen to know how to couple two PCs into a new working one behave as if a single higher performant PC, preferably laptop kind?
The main must be intact as is, the other one may be torn-down

How're the rudimentary circuits/configurations required ?
Would master-slave method be suitable to have work set ratio for the main to the other ~ 2-3 : 1 ?
Any eligible informational fact on this possibility, feasibility in current FOSH (free open source H/W) era ?

 

Anyone happen to know how to couple two PCs into a new working one behave as if a single higher performant PC, preferably laptop kind?
The main must be intact as is, the other one may be torn-down

How're the rudimentary circuits/configurations required ?
Would master-slave method be suitable to have work set ratio for the main to the other ~ 2-3 : 1 ?
Any eligible informational fact on this possibility, feasibility in current FOSH (free open source H/W) era ?

Your question is vague enough to prevent a reasonable answer. People have already created networks of processors that have the ability to divide a problem into pieces and work on solutions in parallel. This technology is more than 60 years old. If that is what you had in mind you can research the open-source material on the subject. In particular you might want to focus on the work of Seymour Cray, and on the bright folks at the University of Illinois who built the Illiac-IV for early efforts in this field.

 

No need to tear anything down -- and doing so would be rather pointless.

What you are wanting to do falls under the heading of "distributed computing". Do some research on what that is and how it is accomplished.