GTX 1050ti fans spinning, no signal

[Przywk]

Hi,
I have just received a used MSI GTX 1050ti double fan armor edition that was advertised as "fans spinning, no signal". I am hoping to solve the issue with your help but I won't complain if I have to take it to a repair shop either as it was really quite cheap.

System specs:
MB: MSI X99A RAIDER
GPU (previously used): 1070 Founders edition
RAM: 16GB DDR4 G.Skill Ripjaws 3200MHz (currently running as 2133MHz with XMP off)

CPU: Intel i7-5820K @3.3GHz (currently running at stock speeds)

PSU: SilentiumPC L1 vero 600W bronze 80+ (Polish brand)

OS: Win10 pro

 

I will break the problem down for easier digestion and to show what steps I had already taken

1. The 1050ti fans are spinning, the PC does not shut down but there is no display on the monitor (when running 1050ti by itself)

2. 1050ti does not appear in device manager while it sits in a second PCIe slot (first occupied by a 1070)
3. After searching through some forums I uninstalled nvidia drivers using DDU (to no avail)

4. My motherboard's bios (Board explorer) shows my 1070 in either PCIe slot I put it in but the slot 1050ti is plugged into is always shown as "empty"

 

My guess is that something is wrong with the cards power intake. What do you think, is it salvagable?