Computer startup problems with ASUS GTX 1060 6GB ROG STRIX

[NH-361]

Hello, I have a little problem regarding this piece of hardware:

Simply put, the computer won't start at all when this video card is inserted. I only get a "check cable signal" prompt on my monitor (which is a VGA cable inserted into a DVI converter), and the motherboard doesn't seem to boot at all. There is power running through all the fans and the card (since it pulses red), but other than that, nothing.

Something significant to note is that this card required an 8 pin PCIE connector. I didn't have one, so I inserted one 6 pin PCIE in its slot instead. I read that it will work, but I am not so sure.

I tried to remove the video card in order to install drivers for it, by using the built-in graphics the board can provide. The PC starts up normally. I installed the drivers, restarted, double-checked, then placed the card back in. Suddenly the PC won't boot up again, showing the same symptoms it had in the first run.

I have a feeling that this was caused by the 6 pin PCIE, so I'll try to buy a 6 pin to 8 pin connector later on (Sorry, a better PSU isn't available here for now). Still, I'd like to ask if they are indeed the problem, and it's not just because of other complications.

My specs are as follows:
Motherboard: Gigabyte f2a68hm-s1
CPU: AMD A10-5600k
Video card: ASUS GeForce GTX 1060 6GB ROG STRIX
Ram: 12 GB DDR3 (8 + 4 GB Kingston)

I'm a little new in building PCs, and some help will be appreciated. Thank you very much in advance!

 

[RobCrezz]

The 10 series cards do not have DVI-I or VGA output so your adapter wont work.

Can you monitor not take DVI, Displayport or HDMI instead? Its much better to use a digital signal (hence the discontinuation of the analogue connections)

 

[SkyNetRising]

Sorry, a better PSU isn't available here for now.

What is your PSU model name?

 

[NH-361]

The 10 series cards do not have DVI-I or VGA output so your adapter wont work.

Can you monitor not take DVI, Displayport or HDMI instead? Its much better to use a digital signal (hence the discontinuation of the analogue connections)

I can't seem to understand by what you mean that the 10 series doesn't have a DVI-I output; there's a DVI-D slot at the back in which I placed a adapter that converts to VGA. Do you mean that this card can't output anything VGA at all, regardless of the converters I've placed? Sadly I cannot use other ports; my monitor is quite old (both actually use VGA), and a replacement isn't possible (due to funds rip).

Sorry, a better PSU isn't available here for now.

What is your PSU model name?

I am using a huntkey green power 550w, and with further research just now, can conclude that it's a fucking time bomb waiting to explode my arse. Sadly it seems that this thing is the only dominant PSU in our market (which surprisingly only sucks in PSUs, the rest of my components seem fine). I guess a new PSU is in order? Are there any alternatives that are both efficient and affordable?