Tips for buying hardware?

[MS]

Thing to consider: automatic gearbox effectively makes for a loss of up to fifteen units of horsepower, but if someone can afford a car with an automatic gearbox, they can probably also afford a version with enhanced engine, unless the model comes at narrow array of options. Another thing to consider, active air conditioning does affect the car dynamics, therefore, in case of horsepower shortage, it may come in handy to temporarily disable the air conditioning in case of overtaking.

[MS]

Lately I thought that I could use some extra RAM and it came out it is feasible with the laptop I have to expand with a built-in module. Even though few people would probably choose to upgrade their laptop, though if someone is fairly satisfied with what they have and does not plan to switch an entire set anytime soon, upgrading the RAM could be an option to gain some speed. Which is why, when buying a laptop, it is good to check on how much RAM slots does it have, as well as how much total RAM capacity can it support.

I saw the SSD is also upgradable, but this could mean having to replace the default module, instead of adding to it, which is rather unprofitable if everything works as promised.

EDIT:

Saw this movie, quite useful. Someone in the comment section points out the first thing to do after accessing the bowels is to disconnect the battery. The guy in the video mentions that dual channel RAM could enhance certain behaviours of the processor, even if it is 2*4GB instead of 1*8GB. If to look forward to upgrade, though, 1*8GB is a better option, since 2*4GB may fit for a complete replacement, depending on expectations.

https://youtu.be/Spldop-OLtY

PS. But actually, it should be possible to buy a more moderate laptop next time and simply boost it with the older RAM, if that makes it for the better.

If done too early, it could bust your warranty though, in case it applies.

[TheDead]

Opening a laptop can be quite an adventure.
If there is no upgrade ports under said laptop, I would NOT recommend a "normal" user doing this, at all.
I spent 2+ hours one time to open (well dissasemble...) an HP laptop just to clean the fans and I open laptops frequently.
Other laptops, you have to remove frame, keyboard, etc. just to add memory. Some laptop conceptual engineers should be fired sometimes.

[MS]

Opening a laptop can be quite an adventure.
If there is no upgrade ports under said laptop, I would NOT recommend a "normal" user doing this, at all.
I spent 2+ hours one time to open (well dissasemble...) an HP laptop just to clean the fans and I open laptops frequently.
Other laptops, you have to remove frame, keyboard, etc. just to add memory. Some laptop conceptual engineers should be fired sometimes.

There must be a reason to it. My guess is that statistically, laptops are perhaps upgraded marginally compared to the desktops, as well as stereotypical laptop users are less techy involved, compared to the desktop users. Which is why, for the costs of manufacturing complex parts, as well as making a design to enable easy upgrading, it was discarded. I do not even know really if there are any laptops nowadays having any easy upgrade access ports. Similar as with cars. Mind majority of modern cars resemble a ball more than a rectangle. This comes due to interior ergonomics calculations, meaning, it is easier to build a smaller car that can contain more, this way, using less materials at the same time. Optimization.

EDIT:

When it comes to the warranty, it is good to respect it. My 'Inspiron 15-5567' was at the warranty service two times before it could be considered good to go. They replaced the fan and then the motherboard. Think if I had to pay for it myself. Some could argue this is the reason to choose the used equipment instead. Well, used equipment is not equally good to everyone, depends on how much does one know what one is actually buying and what are the possible quirks, which could emerge time soon in the future, specific to the hardware.

[MS]

Speaking of the second warranty service, it was particularly hard to negotiate for, since BIOS scan did not detect any malfunction - while my claim was that the memory card slot had been unresponsive. In the end, they agreed to accept the machine for yet another service and it came out, I was right. It took them to replace the motherboard, as probably it was the most swift solution, without having to dig too much into the problem. The lesson coming from this experience is to manually test the machine in every available direction, since automated scans may simply fail to notice, being brief and overly shallow. Which is also why the less the components altogether, the less the hassle.