Installing a 4TB HDD as 2 2TB drives without UEFI BIOS - possible?

[Helixagon]

I'm using Windows 7 64-Bit on an Acer M5811 motherboard with standard BIOS. I recently got a new 4TB HDD to replace my old one which is showing signs of failing (5 years old) and discovered the difficulties of installing hard drives on anything higher than 2TB without a UEFI-capable motherboard. The motherboard is Acer m5811 and the new HDD is this:
http://www.dabs.com/products/hgst-4tb-deskstar-7k4000-sata-6gb-s-7200rpm-64mb-3-5--hard-drive-8203.html?src=15

The included quickstart guide said to go download the HGST Disk manager here (http://www.paragon-software.com/hgst/) to enable higher than 2TB but after installing it on the new hard drive, it tells me that I'm not using a HGST HDD. Using disk manager initially only showed 1678GB on the disk, but after fiddling around and restarting a few times, I managed to get it to show up another 2TB unallocated, but was unable to create a new drive with this.

I can't find a clear answer on this. Is it possible to just partition the disk into two 2TB drives (or similar) during installation, allowing me to use the full 4TB, or can I simply not use more than 2TB per disk on this motherboard, regardless of partitioning? I don't mind reformatting the new hard drive as there's nothing on it yet.

 

[WyomingKnott]

What I would try if there's nothing on the disk that I need is to delete all partitions, re-initialize the disk as a GPT drive, and create two partitions. My machine, which is BIOS and not UEFI, will see both, but I'm not sure about your BIOS.