According to enter link description here, getting the right RAM for your laptop is very difficult.
I tried following this, but found I couldn't get some of the necessary information. So I looked around, and found claims that this is actually much simpler.
For example, article on laptop RAM, all you actually need to know if form factor, type of RAM (DDR/DDR2/DDR3/DDR4), and clock speed. I also found an answer here on superuser which makes the same claim.
I understand that some mismatches can cause, for example, an inability to use ALL of the RAM (obviously if the motherboard only supports 4GB per card, it won't be able to use all the 8GB on the RAM I have).
But what exactly is essential? Assuming my RAM is properly made, do I really need any more parameters than the form factor (SODIMM for laptops), frequency and RAM type?
(I also read something about non-ECC unbuffered being the most common, so that's one more simple parameter)
Edit: To clarify, I'm familiar with the Crucial tool. What I'd like to know is what exactly is the basis for the claim that the RAMs match the laptop. Is it just form factor, speed, RAM type and the max number of GB each slot in the motherboard can handle, or does one have to consider more factors, assuming the RAM chip is up to standard?
