Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have a new 3TB hard drive (external | 3.5 In | SATA | NOT SSD) and was transferring from old disk to new, across a network when my system BSODed referring to a tcpip.sys fault.

When I rebooted, the disk would show up as Not Initialised in Disk Management (Win7). This is after I had partitioned it and written about a TB worth of data to it.

No tools would pick it up (chkdsk, testdrive, seagate disk wizard, seagate tools for windows, diskpart, linux, pmagic via usb boot drive, etc) finally i read a forum post that recommended HD Tune Pro and while the partitions were munched it did give me some SMART readout as below:

Using that info I was able to determine that the drive controllers on the external hd case were kaput. I switched out my drive to another case and was then able to do a chkdsk /f on the drive and now all my bits are in order. The drive works my 3 partitions are back.

However even after rebooting etc I still get a warning in HD Tune Pro re: (Ultra DMA CRC Error Count) as below.


  1. is this something i should be concerned about?
  2. Is this now a permanent blemish on this drives record?

enter image description here

share|improve this question
up vote 1 down vote accepted

Swap your cable, or at least re-seat it. Default-out your BIOS as well before you consider replacing a component.
This immediately seemed like an interface issue.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.