After installing 970 Evo M.2 SSD my old HDDs disappears on bios or windows

[oliviera12]

Just bought a Samsung 970 evo 250gb M.2 ssd.

i have windows 10 x64. and uefi bios i have my OS installed on my old 120gb SSD and i have 2 more HDDs.

The problem is when i install my new 970 evo ssd my HDDs disappear from both BIOS and disk manager.
Only my old ssd can be seen on bios and windows.

when i look at disk manager i can see old and new ssd but new one isnt started..

When i remove new ssd from motherboard everything goes back to normal

pls help me 🙁

 

[camieabz]

Check your motherboard manual. You'll probably find that adding the M.2 drive disables 1 or 2 of the SATA ports, and you'll have to swap them around to find their new homes. Suggest you swap them all around before installing the M.2 though.

 

[oliviera12]

Check your motherboard manual. You'll probably find that adding the M.2 drive disables 1 or 2 of the SATA ports, and you'll have to swap them around to find their new homes. Suggest you swap them all around before installing the M.2 though.

I solved the problem
First i removed all my old hdds and also my GPU (because there was a problem with the screen also affected from this issue) then installed the new ssd to the other M.2 socket
after that i installed HDDs. One of them to the same socket. I changed the the other hdd's socket from sata4 to sata 2

TL;DR
unplugged and plugged all HDDs and GPU


Thank you for your interest