Question SSD Not Detected

Sep 4, 2019
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so i recently got a new M.2 second hand , was working perfectly but it was the only drive in the system it came from , so it had windows etc already on it . so when i put it into my PC it booted onto the M.2 rather than my main boot drive but when i went into the bios my main boot drive was no where to be found so i could not boot into my main OS. My main OS is on a Samsung 860 EVO SSD and is working 100 percent fine and works like normal and is detected without the M.2 drive installed, but as soon as the M.2 drive gets installed the drive seems to disappear from existence. So due to this the only OS i can get onto with the m.2 installed is the version that is on the m.2 SSD which means i cannot format the drive so that there is no versions of windows on it and since i can get into my own main OS i cannot format it that way as well. my PC is the only thing i have as well that supports a m.2 SSD so its the only way i have to find a way to wipe it.

Any suggest on how to get the drive wiped? or even better just get my Main OS drive detected whenever the M.2 is installed as I've no clue and don't have an extreme knowledge of this sort of thing. thanks
 
Sep 4, 2019
6
1
15
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Remove the M.2 and the system boots normally from the 860 EVO?

What specific motherboard is this on?
Likely one or more SATA ports is disabled when using a drive in an M.2 port.
Ye when i remove it system boots normally if it is one of the ports disabled when using a drive in an M.2 port how to i fix this so they are not disabled?

edit:
also its a aorus z390 pro motherboard
 

USAFRet

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Mar 16, 2013
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You don't change it so that they are not 'disabled'.
Rather...you move the data cable for the 860 EVO to one that is NOT disabled.

Look in your user manual for the allowble configurations.
"Refer to "1-8 Internal Connectors," for the installation notices for the M.2 and SATA connectors. "
 

Endre

Great
Apr 30, 2019
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so i recently got a new M.2 second hand , was working perfectly but it was the only drive in the system it came from , so it had windows etc already on it . so when i put it into my PC it booted onto the M.2 rather than my main boot drive but when i went into the bios my main boot drive was no where to be found so i could not boot into my main OS. My main OS is on a Samsung 860 EVO SSD and is working 100 percent fine and works like normal and is detected without the M.2 drive installed, but as soon as the M.2 drive gets installed the drive seems to disappear from existence. So due to this the only OS i can get onto with the m.2 installed is the version that is on the m.2 SSD which means i cannot format the drive so that there is no versions of windows on it and since i can get into my own main OS i cannot format it that way as well. my PC is the only thing i have as well that supports a m.2 SSD so its the only way i have to find a way to wipe it.

Any suggest on how to get the drive wiped? or even better just get my Main OS drive detected whenever the M.2 is installed as I've no clue and don't have an extreme knowledge of this sort of thing. thanks
The M.2 connection is better than SATA.
If the M.2 drive is also an NVMe drive, then definitely you should install Windows on it.

  1. Remove the M.2 drive
  2. Boot with a Windows 10 boot USB flash drive and format partition C
  3. Introduce back the M.2 drive, format it and reinstall Windows 10 on it from the USB flash drive.
 

USAFRet

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Mar 16, 2013
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The M.2 connection is better than SATA.
If the M.2 drive is also an NVMe drive, then definitely you should install Windows on it.

  1. Remove the M.2 drive
  2. Boot with a Windows 10 boot USB flash drive and format partition C
  3. Introduce back the M.2 drive, format it and reinstall Windows 10 on it from the USB flash drive.
I wouldn't. The actual user facing difference between a good SATA III and an NVMe is not necessarily mind blowing.
In a lot of use cases, you can't really tell.

Given a fully functioning already configured 860 EVO as the OS drive, I'd probably leave it.
 

Endre

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Apr 30, 2019
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I wouldn't. The actual user facing difference between a good SATA III and an NVMe is not necessarily mind blowing.
In a lot of use cases, you can't really tell.

Given a fully functioning already configured 860 EVO as the OS drive, I'd probably leave it.
Faster is always better!
If the M.2 connection is better, why not use it?
The only hassle would be reinstalling Windows.
😃
 

USAFRet

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Faster is always better!
If the M.2 connection is better, why not use it?
The only hassle would be reinstalling Windows.
😃
It's not necessarily that much faster to justify a whole reinstall.
And depending on use, that drive may be put to better use as a secondary drive. Photo or video editing, for instance.
 
Sep 4, 2019
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It's not necessarily that much faster to justify a whole reinstall.
And depending on use, that drive may be put to better use as a secondary drive. Photo or video editing, for instance.
Actually once I got it detected by using a different sata slot on the motherboard since the m.2 had windows on it and so did the 860 I just booted to the m.2 and formatted the 860 and did a windows reset since pc was full of junk etc so it all worked out in the end
 
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USAFRet

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Actually once I got it detected by using a different sata slot on the motherboard since the m.2 had windows on it and so did the 860 I just booted to the m.2 and formatted the 860 and did a windows reset since pc was full of junk etc so it all worked out in the end

a new M.2 second hand
I don't care how well it seems to work right now...that needs a full wipe and reinstall.
In addition, just 'formatting' the 860 EVO left behind the original boot partition.
 

Endre

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Apr 30, 2019
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yes but it is if you can "notice" it is faster thats the thing. unless you are able to tell your OS boots up 1-2 seconds faster then before then you won't see how it is faster
My motherboard is also Z390 Aorus, and in my case, going from SATA3 to M.2 NVMe PCIe 3.0 x4 was a distinguishable difference.
 

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