3TB hard drive not recognized

darylzero

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Jan 20, 2016
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My hard drive is the Toshiba 3TB model: DT01ACA300



Here is the issue. I have an older desktop I built from 2009 with Windows 7 x64. Asus M3N72-D mobo. It has 3 hard drives installed with one being the Toshiba 3TB.



My OS drive failed and I installed a new SSD hard drive and installed Windows 7 x64 back on it. Once I was done I opened the case back up and connected my other 2 hard drives, the other being a 1TB drive.



My new Windows can see the files on the 1TB, but it doesn't recognize the Toshiba 3TB drive. It gives it a letter, but when I double click it it says it needs to be formatted.



Here is the thing though, if I connect the Toshiba 3TB drive to an external USB device and connect it to my Windows 10 laptop via USB cable the drive shows up just fine.



So why on my desktop with the same OS as before can it not read the drive??



Thanks!
 
Solution
The last couple of posts here talk about updating the Nforce drivers that will allow drives larger than 2.2Tb

https://forums.geforce.com/default/topic/482988/pc-components/nforce-3tb-hdd-support-a-hdd-62-2-18tb-doesn-39-t-work-33-/
Welcome to the community, darylzero!

It's possible that the USB enclosure is configured with different LBAs and that's why the system wants to reformat it when you connect it via SATA.
The system will be able to access it and use it, once you reformat it. However, this would require you to erase all the data on the 3 TB hard drive, so make sure you have a backup of your files copied to the laptop. If you wish to continue using it as an internal, reformatting is your only option to access it internally (via SATA).
However, I'd recommend you to do it through Disk Management and make sure you choose the GPT partition style/table (GUID) when initializing it first. If you use the initial MBR (Master Boot Record), you will be limited to use only up to 2.2 TB of the HDD's capacity.
How to initialize your HDD
How to partition & format it


Hope this helps. Keep me posted if you need further assistance.
SuperSoph_WD :)
 
@ss202sl that was it!! thanks!

Here was the solution:

"I changed the driver for the individual SATA controller -- 2 drives per controller, and left the remaining controllers with my other disks using the Nvidia driver.



- Control Panel

- Device Manager

- IDE ATA/ATAPI-Controller

- Right-click on NVIDIA nForce Serial ATA Controller

- Properties

- Make sure this is the one with your >2T drive. See connection 0 & 1 tabs.

- Cancel

- Right-click again on nForce SATA devices

- Click on update driver software

- Search for driver software on the computer

- Select from a list of device drivers on the computer.

- Select Standard Dual Channel PCI IDE controller

- Next...

- Reboot.



Upon reboot, your drives on that controller should be re-discovered, all 3T."