Old HDD not recognized

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Q

qbot

Jun 11, 2018
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Hello i recently purchased a Samsung 860 evo SATA M.2 and installed it into my pc. When I turn on my pc, I get a message saying “Reboot and select proper boot device”. I went into my BIOS to select my HDD to be the primary boot drive but it is not being recognized. When I take out my SSD from the computer, my HDD works just fine. I don’t know what’s going on please help. I have a B150 Pc mate motherboard
 
Solution
P
Look in your mobo manual p.29. There is a table there of how to use the SATA ports. There is an "overlap" between some SATA ports and certain places where you can mount a SSD unit. IF your unit is in the M.2 SATA slot on your mobo, then you can NOT use SATA ports 1 and 2. On the other hand, IF your SSD unit is mounted in a M.2 PCIe slot, you cannot use SATA ports 3 and 4.

I suspect that once the SSD is mounted, the HDD you are trying to use for booting is in one of those conflicting SATA ports. FIRST, disconnect your HDD but leave the SSD installed. Boot up, but of course the system will fail because it can't find a unit containing a bootable OS. But this WILL force the BIOS to forget it ever had a HDD.

Now shut down and re-install...
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Paperdoc

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Oct 19, 2006
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Look in your mobo manual p.29. There is a table there of how to use the SATA ports. There is an "overlap" between some SATA ports and certain places where you can mount a SSD unit. IF your unit is in the M.2 SATA slot on your mobo, then you can NOT use SATA ports 1 and 2. On the other hand, IF your SSD unit is mounted in a M.2 PCIe slot, you cannot use SATA ports 3 and 4.

I suspect that once the SSD is mounted, the HDD you are trying to use for booting is in one of those conflicting SATA ports. FIRST, disconnect your HDD but leave the SSD installed. Boot up, but of course the system will fail because it can't find a unit containing a bootable OS. But this WILL force the BIOS to forget it ever had a HDD.

Now shut down and re-install the HDD BUT connect it to a new SATA port that does NOT conflict with the SSD. Then boot into BIOS Setup, verify that the HDD and the SSD are detected and working, and then choose your boot drive.
 
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Solution
popatim

popatim

Titan
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Dec 2, 2009
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As PaperDoc mentioned, on your board using the m2 slot disables Sata ports 1&2 so you need to put the HDD on 3,4,5 or 6. Windows should recognize and boot from it.

For the m2 SSD to boot windows you would need to install windows to it or clone the HDD to it.
 
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Q

qbot

Jun 11, 2018
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Thank you so much. This pc is prebuilt so I didn’t have the manual for it. I downloaded the manual online, located the ports and now it works. You guys are life savers
 
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