Gaming K6+ Not reading my 4th HDD

Intel 6700k?

Radeon R9 390x

32 GB 2400 DDR4<span style="line-height: 1.4;">?</span>

Hey guys. So the title basically states the issue.

In the BIOS Dr. Debug shows code A6. I have four storage mediums wired right now: 256GB SSD for OS, 500GB SSD for certain Steam games, 1TB HDD from my old rig I built in 2013, brand new 3TB HDD.

In the BIOS, I can clearly see all four of these storage devices. In Windows Explorer, however; I see: C, E(system reserved 99.9 MB), F (1TB), and G (500GB).

I switched the SATA cable to a different port on the board itself (from SATA3_1 to SATA3_A1).

Thinking maybe it was a BIOS problem, I updated to the most recent version (2.70).

The manual says for these codes (A0 - A7) to reinstall devices. If it doesn't work, then clear the CMOS and remove all SATA devices. Did that. Still no dice.

My next realization was discovered on this page:

?http://www.asrock.com/mb/Intel/Fatal1ty%20Z170%20Gaming%20K6+/index.us.asp?cat=Storage

Is this seriously indicating that the Gaming K6+ doesn't support beyond 1 TB of storage on a single drive? For how much I spent on this motherboard, this is a BIG disappointment.?

Does anyone have any answers to alleviate this situation or am I stuck?

Thanks for any help I can get.

Edit:
I just noticed that all of the storage mediums on this list are ssd. Do i need to RMA the 3 TB HDD? I eill do more testing when I get off work later. Any input is greatly appreciated.