Toshiba p300 3tb internal HDD not recognized anywhere!

[AlterZer0]

Hi,

Recently is decided to upgrade my storage space and bought the Toshiba P300 3tb internal HDD.

I plugged it in and it wasn't recognized in either the BIOS nor Device Management.
I checked if it was working (powered) and it was.
I tried different kabels (working ones from other HDD's),
I tried updating my motherboard,
I tried different SATA ports, nothing worked.

My other HDD's are:
Samsung SSD 850 EVO 250gb (windows)
And two older HDD's of 750gb and 600gb which are working fine.

These are my pc specs:

Processor Intel(R) Core(TM) i7-5820K CPU @ 3.30GHz

Motherboard MSI X99S SLI PLUS

Video Card NVIDIA GeForce GTX 970

RAM 16 GB

Operating System Microsoft Windows 7 Ultimate Edition Service Pack 1 (build 7601), 64-bit

I am beyond desperation, please help me!

 

[alceryes]

If it's not recognized in BIOS you won't see it in Windows, so start there.
Where are your other drives (what ports)? Try moving the new drive to the 7-10 ports.

 

[AlterZer0]

If it's not recognized in BIOS you won't see it in Windows, so start there.
Where are your other drives (what ports)? Try moving the new drive to the 7-10 ports.

My 2 older HDDs are in the 1-6 ports and my EVO and the new Toshiba are in the 7-10 ports.

 

[alceryes]

At this point I would say test the hard drive in another system or with an enclosure.