OS SSD doesn't get detected after mounting M.2 2280 SSD

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Andy Yu

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Dec 20, 2015
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Just like the title,
I build this PC this year and I make my Crucial MX200 250GB 2.5" SSD my OS drive. But, later I realized that I don't have enough storage for my games, so I decided to buy a MX200 250GB M.2 2280 SSD which I really like Crucial's SSD as you can see. I mounted my M.2 SSD on to my Z170 Pro-Gaming Motherboard without any problems, but my computer can not detect my OS drive and I am stuck in BIOS. I uninstall the M.2 SSD and everything is fine again.

Any suggestions?
 
Solution
B
Some motherboards disable some of the SATA ports when an M.2 card is installed. Looking up your board on newegg I found this:

"* When the M.2 Socket 3 is operating in SATA mode, SATA port 1 will be disabled"

So, make sure your SSD isn't plugged into one of the ports that gets disabled with M.2.
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bitwright

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Jun 12, 2014
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Some motherboards disable some of the SATA ports when an M.2 card is installed. Looking up your board on newegg I found this:

"* When the M.2 Socket 3 is operating in SATA mode, SATA port 1 will be disabled"

So, make sure your SSD isn't plugged into one of the ports that gets disabled with M.2.
 
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Solution
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Andy Yu

Honorable
Dec 20, 2015
43
0
10,540


Thank you for your reply this helps me a lot. I never think of actually my motherboard's problem :D Thank you
 
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