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2,5 TB HDD is shown under Windows 7 x64 with only 280 GB

Hello!

I installed a new SATA II HDD (WD Caviar Green Power 2,5 TB SATA II) with 2,5 TB. This HDD is only shown with 280GB capacity under my Windows 7 Ultimate x64. If I beforehand partition and format (NTFS) the HDD with a 3rd party, bootable partition manager tool, the partitions I made show us but not as NTFS but as RAW and I cannot format them. If I delete one of the partitions in Windows 7 its gone and the capacity of the HDD is reduced by the size of the deleted partition. I tried it with MBR as well as with GPT.  My Mainboard is a Asus M3N78-VM.

I urgently need a solution for this issue, because my old HDD is slowly breaking down with more and more errors...

I hope someone can give me a solution for this. As I understoood it Windows 7 Ultimate x64 should be able to handle large HDD's, shouldn't it?

Hi,

1.      Which tool are you using to partition and format the drive?

2.      What exactly happens when you try to format the external hard rive?

Method 1:

If the drive is still blank (no data), you may need to wipe out the partitions and check.

Create and format a hard disk partition

http://windows.microsoft.com/en-US/windows7/Create-and-format-a-hard-disk-partition

 Method 2:

How to partition and format a WD drive on Windows (7, Vista, XP) and Mac OSX

http://wdc.custhelp.com/app/answers/detail/a_id/3865

I would also suggest you to contact the hardware vendor

 http://support.wdc.com/contact/index.asp?wdc_lang=en

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If the HDD is not partitioned beforehand using Gparted it shows only as 280 GB drive and only that amount of storage can be partitioned and formatted under Windows 7.

If I partition and format (NTFS) the disk with GParted before starting Windows the partitions are shown with full capacity under Windows 7 but not as NTFS but as RAW. If I try to format it with Quick format I immediately get the error that the formating could not be done successfully. When I try a slow format it formats and when its nearly finished brings the same error message.

If I remove the partitions under Windows 7 the capacity shown revert back to only the mentioned 280 GB out of the 2.5 TB it should have...

From studying the available documentation I have the suspicion that for this to work my mainboard might need to support  EFI / UEFI and I guess thats not the case...  If someone could confimr that it would help me.... 

Thank you for the link to WD support.

 

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Try this see if it works. Since, youre using an ASUS mobo. If the chipset is supported

This 2 .5 TB hdd isnt in a USB enclosure is it?

Or do this (you'll have to reformat). Post #6


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The disk is not in USB enclosure. Unfortunately the tool does not work for me, I guess it's not for this Mainboard.

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Last updated March 13, 2018 Views 870 Applies to: