old hdd not detected in bios after ssd installation

Okrim_

Reputable
Nov 15, 2015
7
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4,510
hello,

after I copied the system from my old hdd and my new Samsung 850 Evo 250gb, the computer started acting strange. but after some tries I managed to get it work by setting the paging file from the automatic settings to managed to system in Windows 10. I also set up ahci by starting up in safe mode, setting up ahci in bios and rebooting. everything seemed to work fine. I also decided to setup paging file on the old hdd. after a while I got a bsod. I don't remember what did it say but I remember reading "kernel" I rebooted and the hdd was gone. not even detected in the bios. I tried changing sata port and it seemed to work. but then, after some reboot, when I tried a reboot another time, Windows got stuck in the spinning wheel telling it's rebooting. I forced the pc to sleep and.. again, no hdd in bios. if I cut the power and boot again the disk is detected, but only for a while. if I try to access to the files I get I/O error, and again, hdd not detected after reboot. I switched to ide mode, same error, I unplugged the ssd and started the system with old hdd. it starts, but then error.. and hdd not detected.. if I connect only the ssd and the other storage hdd (a third one that has always worked) everything seems to work fine (no pc beep tho.. but maybe I unplugged by error the beep thingie while unplugging the hdd near it.. I hope..)

so..

tl;dr can a paging file on a mechanical drive break it while on ahci? it's possible that an ssd could make a hdd unusable or it is all just a coincidence and the hdd had to fail? what could cause an hdd to not be recognised in bios?

I hope I could go back having everything to work. or at least understand what happened..

thanks
 
Welcome to the community, Okrim_!

Your HDD might be failing, so I'd advise you to connect it to a different computer (if you have access to such) and see how it will get recognized. If you are able to access your data, make sure you backup everything that's important ASAP. Afterwards, I'd advise you to download your HDD manufacturer's diagnostic tool test the health and SMART status. If you can't find it, you can refer to these third-party testing tool suggestions: http://www.tomshardware.co.uk/forum/282651-32-best-diagnostic-testing-utility
Another thing you should do is swap the SATA cable connecting the HDD, it might also be the source of the issue. If it's faulty, BIOS won't be able to pick up the hard drive.
One more troubleshooting step that comes to mind is resetting BIOS using one of the methods listed here: http://www.wikihow.com/Reset-Your-BIOS
After you reconfigure the BIOS settings, hopefully, you would be able to recognise and access the HDD.

Keep me posted with your steps! Good luck! :)
SuperSoph_WD
 

Okrim_

Reputable
Nov 15, 2015
7
0
4,510


thanks. sadly nothing worked and i can't connect it to another pc. anything else i can try while i wait to test it on another computer?

but i still have to try the diagnostic tool! problem is i can't seem to have the bios to keep recognising the hdd for much time..

what could have happened? the hdd just had to fail or some of the new settings could have damaged it? i don't want it to happen to my other hdd..

thanks
 
Hey there again, Okrim_!

Since you have trouble recognizing the HDD due to the constant disconnecting, I'd start the troubleshooting by swapping the SATA cable. As I already mentioned if it's faulty, your system won't be able to pick up the drive because it doesn't have enough power.
If you don't have access to another computer at the moment, I'd suggest you to try using a docking station, which would let you test the HDD externally.

Keep me updated! :)
SuperSoph_WD
 

Okrim_

Reputable
Nov 15, 2015
7
0
4,510


hi! thanks again :)

i've already tried swapping sata port, changing cable. changing cable and swapping port, every combination i could think of.. :( i'm in standby for now looking for a docking station or another computer.

i'll post updates as soon as i can try something new :)