12How do you know the SSD still has life left in it?
We read the SMART data off the drive itself: how much has been written to it since it was made, the percentage of life remaining, and whether there are reallocated sectors. A drive that has been written to heavily **tests perfectly** — it boots fast and copies files normally — and starts losing data months later. That number is invisible in the machine's appearance, in its speed, and in any ordinary Windows check; it can only be read off the drive.
13How is the memory tested?
We run a full memory test across the machine, and confirm that the installed size and speed are the ones we are listing. The symptoms of failing memory are treacherous: the machine shuts down or crashes every few days, people blame Windows and reinstall it several times for nothing — and nobody suspects the memory until months have gone. The test takes time, and that is precisely because the fault only surfaces once every address has been written and read back.
14How do you check the hinge and the chassis?
We open and close the lid several times, looking for a hinge that is loose, cracking, or a lid that will not hold its angle; we inspect the plastic around it, because that is the first place a business chassis cracks; and we confirm every screw in the bottom cover is present and the cover seats properly. A loose hinge is not a cosmetic matter: it gets worse and it drags the display cable with it, and when that cable fails the screen goes black and the repair costs far more than the hinge would have.