HDD file system not recognized when connected to SATA

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hwplivnlow

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May 8, 2015
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Be patient with me, here... maybe this has come up before, but it seems like an easy enough problem to fix.

Relevant specs: 3TB Seagate Barracuda, 2x OCZ 120GB SSDs in RAID 0, ASUS P8Z77-V motherboard (fully updated BIOS)

So I have taken a 3tb external drive, and I am trying to connect it to any SATA port on my motherboard. I have two 120GB SSDs set up in RAID 0. The problem is that the 3tb drive shows up in Windows but is not accessible and "needs to be formatted." Testdisk says the drive is fully functional and I can access its files from there.

The problem might be that the SATA mode is set to RAID in the BIOS (for the SSDs) and that the two SATA controllers (Intel and ASMedia) are both configured by this. Would setting it to AHCI help?

Thanks for any help.
 
Solution
Boogieman_WD
Hey there, hwplivnlow.

If you are able to access the files, then I'd recommend that you make a backup of your important data. After that go ahead and try changing only this HDD's SATA mode to AHCI. I'd also recommend that you test the drive with the manufacturer's diagnostic tool to see if it shows anything out of the ordinary, just to be on the safe side (even though you've already tested it with a 3rd party diagnostic tool).
There might be a problem with the file system as well, you could run chkdsk, to see if it works properly afterwards, but note that there's a slight possibility that this might corrupt the data on the drive, so a backup of your important files is pretty much obligatory, so that you don't lose anything.
You could...
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Boogieman_WD

Boogieman_WD

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Jul 31, 2014
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Hey there, hwplivnlow.

If you are able to access the files, then I'd recommend that you make a backup of your important data. After that go ahead and try changing only this HDD's SATA mode to AHCI. I'd also recommend that you test the drive with the manufacturer's diagnostic tool to see if it shows anything out of the ordinary, just to be on the safe side (even though you've already tested it with a 3rd party diagnostic tool).
There might be a problem with the file system as well, you could run chkdsk, to see if it works properly afterwards, but note that there's a slight possibility that this might corrupt the data on the drive, so a backup of your important files is pretty much obligatory, so that you don't lose anything.
You could also try the HDD with a different SATA port and SATA cable to see if the same thing happens.

Hope that helps. Please let me know how everything goes.
Boogieman_WD
 
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