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Boot Device Not Being Recognized Upon Restart

This is a discussion on Boot Device Not Being Recognized Upon Restart within the Motherboards, Bios & CPU forums, part of the Tech Support Forum category. I've been having this problem with my PC and I've looked up and scoured the internet for a solution to


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Old 10-15-2019, 01:19 PM   #1
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I've been having this problem with my PC and I've looked up and scoured the internet for a solution to my problem but nothing has helped. When I restart my PC my SATA SSD isn't being recognized by my computer as being even plugged in and keeps giving the error "Boot Device Not Found". A workaround that I've been using is just turning off my PC completely for 1-2 minutes then turn my PC back on then it boots like normal. I've run surface tests and done Chkdsk on the drive with no problems being found and I would appreciate some help with this.

My motherboard is AB350 Pro4 by ASRock
and my SATA drive model is CT500MX500SSD4

Edit: Forgot to mention that I already updated my BIOS as well and that didn't change anything.
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Old 10-15-2019, 02:36 PM   #2
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Check your cable connections to make sure they are fully seated.
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Old 10-15-2019, 04:00 PM   #3
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Quote:
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Check your cable connections to make sure they are fully seated.
I just tried, I unscrewed the screw keeping it in place reseated the SATA drive and made sure it wasn't crooked before screwing it in firmly. I restarted my computer after it booted up and was met with the same error that my boot device wasn't recognized. I also made sure nothing else was loose and made sure all the connections were solid.
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Old 10-15-2019, 04:25 PM   #4
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I just looked up your SSD model....so you have a M.2 SSD.

Can you get into the BIOS? If so, does the SSD show up in the BIOS? Do you have anything else connected to the SATA ports on the mobo?

What CPU do you have installed?
What BIOS version did you update to?
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Old 10-15-2019, 05:33 PM   #5
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Quote:
Originally Posted by bassfisher6522 View Post
I just looked up your SSD model....so you have a M.2 SSD.

Can you get into the BIOS? If so, does the SSD show up in the BIOS? Do you have anything else connected to the SATA ports on the mobo?

What CPU do you have installed?
What BIOS version did you update to?
Yes, I can get into the BIOS, the SSD doesn't show up only when I restart my machine but if I leave it off for a few minutes then it is there. Sometimes it does show when I restart my PC but when I boot to the device I am met with the error. I also have nothing else connected.

My CPU is a Ryzen 5 1500x.
I updated the BIOS to version 6.00 for the AB350 Pro4 by ASRock.
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Old 10-15-2019, 06:15 PM   #6
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Which M.2 slot do you have the SSD installed in? Do you have the SSD in the right orientation? Can you see the SSD in the BIOS?
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Old 10-15-2019, 06:21 PM   #7
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Which M.2 slot do you have the SSD installed in? Do you have the SSD in the right orientation? Can you see the SSD in the BIOS?
Currently, it's installed in the M2_2 slot and it is in the correct orientation. The SSD showing up in the BIOS is very iffy sometimes it's there and others not.
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Old 10-15-2019, 08:55 PM   #8
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Try moving it to m2-1
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Old 10-15-2019, 09:02 PM   #9
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check your mobo manual.....start at page 30. There's something in there about a yellow film on the nut that has to be removed.

https://asrock.pc.cdn.bitgravity.com/...350%20Pro4.pdf
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Old 10-16-2019, 07:12 AM   #10
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Quote:
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Try moving it to m2-1
Quote:
Originally Posted by bassfisher6522 View Post
check your mobo manual.....start at page 30. There's something in there about a yellow film on the nut that has to be removed.

https://asrock.pc.cdn.bitgravity.com...350%20Pro4.pdf
The yellow film was already removed for M2_2_CT_3 and the M2_1_CT_3
The SSD only ever wants to work in the M2_2 slot and never boots in the other. I checked and made sure the SATA controllers were enabled in the BIOS as well. I scoured the rest of my manual to find what I was doing wrong but to no avail.

At this point, I'm gonna call it a wrap. I'm gonna look into getting a new motherboard one with better M.2 Support. Thank you so much for helping me test new ideas that I couldn't come up with on myself I am truly grateful for the time that you spend helping me.

Sincerely,
Andrew
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