How to pump a brand new system unit without losing the manufacturer's warranty?

Question

Computers

Hello comrades!
I want to buy a branded system unit (for example, asus), but I will need to install ssd into it and, possibly, add RAM. I don't want to build a system from scratch.
Is it possible to upgrade a new system unit without losing the manufacturer's warranty? Maybe service centers provide such a service (bought - brought - they installed).
Or, still have to collect from scratch?

Answer 1

Building from scratch is easier, cheaper, and better (in terms of results) than handicraft upgrades that weren't originally intended to be upgraded.
In general, branded system developers are a specific product intended not for those who are seriously versed in hardware, but for those who like someone to think for them (read - would take responsibility for the choice), and such people are willing to pay ( actually pay extra) for it. For example, middle managers, on whose head the need to purchase equipment (computers) has fallen, are afraid to make some mistake in choosing a complete set and want to hide behind a cool brand: "I chose Asus, and not a bunch of different nonames, I did everything right."

Answer 2

Well, where will you buy there immediately buy an upgrade and tell them to put it in