Hard Drive data missing

baileywill96 · Dec 5, 2014

So I bought this hard drive.
It's a 3TB hard drive and I know it's not going to have 3000GB, but I think it should have about 2.75TB based on reviews that I have seen. When I go to Windows Disk Management, it says the drive is in two partitions, one that is 2000GB and the other is 750GB. I can't unpartition (not sure if that is a word) it and I can only format the 2000GB part of it. How can I make this recognized as one drive?

popatim · Dec 5, 2014

Does your motherbd support drives larger than 2TB? If so you can delete both partitions and the partition it in GPT instead of MBR format to get the full size.

Paperdoc · Dec 5, 2014

Actually, unless you are planning to BOOT from this drive, you don't need special motherboard support (called UEFI support). What you DO need, though, is a recent version of Windows. Win 7 and 8 both can use HDD units over 2 TB, in both 32- and 64-bit versions. If you have Win XP, only a 64-bit version of that can do this job. BUT when you use Disk Management to Create a New Simple Volume, you must specify that it be done with a GPT style, not the old MBR system. So you probably should go into Disk Management, delete all the Partitions you find there on this new drive, and start over using a GPT system of Partitioning.

popatim · Dec 9, 2014

Sorry Doc but first the motherbds controller has to properly support the drive.
I have several boards that wont even boot with a 3tb+ attached as storage. Another 890fx board that takes 10minutes to boot but eventually makes it but only if the controller is in raid mode and the drive is setup as a single disk raid1.

Paperdoc · Dec 9, 2014

Now that's intriguing, popatim. What you say appears to imply that the mobo must read the Partition Table as part of it POST checking of all its storage devices, and generates errors (interpreted as a faulty device) when it can't. Of course, a GPT Partition could not be read properly by a mobo lacking UEFI support. But I thought there was some sort of attempt at backward compatibility that involved (on a GPT Partition) a false record that looks like an MBR Partition just so it CAN be read without error.

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