New PC Build - Windows 8.1 only recognizes SSD but not HDD

Motherboard: Gigabyte AM3+ AMD 970 SATA 6Gbps 1800 AMD GA-970A-UD3P
SSD: SanDisk Extreme II 120GB
HDD: Seagate Barracuda 1 TB HDD
OS: Windows 8.1

I'm a new builder that just finished my first computer. Everything is running wonderfully, except now Windows only recognized my SSD (which I booted from) and not my HDD.

The confusing part is, when I was choosing which drive to install the OS onto (from a flash drive), both drives presented themselves as options. Now it's as if the HDD doesn't even exist.

I'm trying to figure out if I have to mess with the hardware or this is a software configuration.

If you look at the image of the motherboard here:

Of the 6 data ports on the bottom right hand corner, I believe I have one plugged into the top left and one plugged into the bottom right. Could that be the problem?

Thank you so much for the help in advance. This is 1 week into the project and I'm exhausted!
2 answers Last reply
More about build windows recognizes ssd hdd
  1. Now reconfigured so SATA Port0 = Sandisk SSD and Port1 = HDD. Both are recognized in Bios. Why aren't they recognized in Windows?
  2. go to my computer, right click, select MANAGE. double clieck DISK Management. you should see your 2 active device. DISK 0 and DISK 1 (HDD). you should format in able to see it. I hope this work.
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