Question Install new 4TB HD to not showing any HDs..WTH?

[peachsmoothie]

So I have a SSD, a 1TB HD, and a 4TB HD. I went to go install the new 4TB HD today, which I figured as it has been in the past, simply plug and go. Well, I installed and plugged it in, both to the mobo (SATA 1 and 2) and PSU (SATA 1 and 2 or 1 and 3..) to boot up and find that NEITHER HD are being seen. I checked the BIOS, went into disk management and device manager, they are nowhere. My SSD and 1TB HD were working fine together previously so I have no idea what is going on.
Any thoughts and help would be appreciated. TIA.

 

[popatim]

Which motherboard do you have?

 

[peachsmoothie]

Motherboard: ASUS ROG Strix X370-F Gaming CPU: AMD Ryzen 5 1400 PSU: EVGA Supernova 750 G3 RAM: T-Force Vulcan 16 GB DDR4 2400 GPU: MSI Radeon RX 570 New HD is Seagate Skyhawk

I have tried updating BIOS; it is up to date as far as my PC will allow.
I've also unplugged the new HD to see if my old one will be detected. It's still not being detected..
I've looked in my BIOS, disk management, device manager. It's nowhere.

Which motherboard do you have?

 

[peachsmoothie]

OKAY, so I forgot to actually plug them into my mobo after fiddling with them the last time, so I did that and my old HD is showing up, however, the new one is still not being detected in computer management or device manager..

 

[popatim]

Is it shown in the Bios?

 

[seagate_surfer]

If it shows in the BIOS, then checking for it in diskpart might be a way to sniff it out. Then you'd just follow the instructions here:

How to use DiskPart to clean and format a storage drive not working on Windows 10

Word to the wise though: Be careful not to nuke the wrong drive under Diskpart. For example, you'd think your OS drive would be drive 1, but the reality is that it may or may not be, sometimes it's "Drive 0" so make sure if you go to clean the drive, you're doing it with the right one.

If it's not even showing in the BIOS, it's possible you might have a dead drive and need to look into whether or not there's warranty left on it.