M2 and SATA ports

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Why is it then we get say 6 SATA ports and 1 or 2 M2 ports that when you install a M2 you can Not use a Sata port. Why are Manufacturers doing that. After all, they are on different slots surely.
Can someone Explain to me in plain English why they do that?

After all, these are all on the motherboard so one should be able to slot in an M2 or two, plus use all the SATA ports.. Cheers n Beers Folks.
 
chroniclard--Thank You. I shall stick to ssd then. Not much slower, but faster than hdd.
Not buying at moment as prices are stupidly high. I shall wait patiently. lol
 
They don't do it to annoy you or segment products by enabling/disabling certain combinations of port functionality. It's done so that the combination of what you are running has enough bandwidth to work properly. Lookup pci-e lanes.
 
Why is it then we get say 6 SATA ports and 1 or 2 M2 ports that when you install a M2 you can Not use a Sata port. Why are Manufacturers doing that. After all, they are on different slots surely.
Can someone Explain to me in plain English why they do that?

After all, these are all on the motherboard so one should be able to slot in an M2 or two, plus use all the SATA ports.. Cheers n Beers Folks.

To expand on what others have pointed you to - the issue is pretty much exactly what you put in your original post. Specifically, depending on the chipset and/or processor some motherboard ports will share PCI-E lanes so in a way they are on the same "slots".

The cheaper chipsets or processors will usually support fewer PCI-E lanes meaning they are more likely to have features that have to share resources.
 
To expand on what others have pointed you to - the issue is pretty much exactly what you put in your original post. Specifically, depending on the chipset and/or processor some motherboard ports will share PCI-E lanes so in a way they are on the same "slots".

The cheaper chipsets or processors will usually support fewer PCI-E lanes meaning they are more likely to have features that have to share resources.

Or the more expensive ones use it to add a 3rd nvme slot. I think mine steals lanes from the sata ports, but I've seen boards use the 4x slot's lanes too.
 
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