Question Is my PCIE slot faulty or my PSU's PCIE pins faulty or really really bad luck

[BUST_ER]

I recently had a problem with my DUAL GTX 1060 that I used for months without no problems. I left the computer then came back and my monitor, keyboard and mouse weren't working. I removed it, checked it and connected it again. I still had the same problem. I was confused on what was the issue so I got a gtx 710 to test the motherboard. My computer works fine, keyboard monitor and mouse all work correctly, it doesn't need PCIE pins like my GTX1060, so I assumed it was just a faulty GTX 1060.

Until I bought a GTX 1660, I used Pcpartpicker to make sure everything was compatible before hand it was fine. I finally got the 1660 today and it came with an adapter for a 8 pin PCIE slot that requires two 4 pin PCIE pins. I connected both to it and connected the GPU to the motherboard.

I still get the same problem as the GTX 1060, I'm unsure if it's my motherboard at fault here or the PCIE pins from my PSU.

Any constructive advice at all is greatly appreciated, thanks.

 

[NightHawkRMX]

What are your full system specs including make and model of power supply?

A bad power supply isnt going to handle a 1060 or 1660 well.

 

[BUST_ER]

What are your full system specs including make and model of power supply?

A bad power supply isnt going to handle a 1060 or 1660 well.

PSU: Corsair 650 VS
CPU: AMD FX-8350
Motherboard: Gigabyte Technology Co. Ltd. GA-78LMT-USB3 (Socket M2)
Storage: 931GB Seagate ST1000DM003-1CH162 ATA Device (SATA)
Current GPU: NVIDIA GeForce GT 710

 

[NightHawkRMX]

PSU: Corsair 650 VS
CPU: AMD FX-8350
Motherboard: Gigabyte Technology Co. Ltd. GA-78LMT-USB3 (Socket M2)
Storage: 931GB Seagate ST1000DM003-1CH162 ATA Device (SATA)
Current GPU: NVIDIA GeForce GT 710

Does the vs have orange or grey letters on the side? Orange ones have no 80+ label and grey ones have 80+.

Corsairs vs line is know for failure and may be the reason for this. I bet the psu has issues powering these cards.

Do you have a spare psu to test with?

 

[BUST_ER]

Does the vs have orange or grey letters on the side? Orange ones have no 80+ label and grey ones have 80+.

Corsairs vs line is know for failure and may be the reason for this. I bet the psu has issues powering these cards.

Do you have a spare psu to test with?

It has a grey mark on the side with black letters on it saying VS650 so I'm assuming that's what you mean.

No unfortunately I don't have a spare PSU right now
You don't see any issue with the motherboard at all? it's old so I assumed it was that which was faulty.

Can you recommend a good PSU to buy for this build then?

 

[geofelt]

The corsair VS units are tier 5/6 on this list.

PSU Tier List [OLD]

Credit to @Starelementpokeand @Energycore for helping out with this long-awaited refresh of the old PSU tier list by Aniallation (who previously went several months without logging in), leaving the old list in need of help. This is simply an update of the list that was flawed in creation by the P...

linustechtips.com

I might suggest a 550w Seasonic focus gold with a 7 year warranty:
https://www.newegg.com/seasonic-focus-550-gold-ssr-550fm-550w/p/N82E16817151203?Item=N82E16817151203

 

[NightHawkRMX]

Motherboards usually dont fail like that.
If you have another pcie slot you can test the card there.
Even if the x1 slot is available you can test that. The card will work in that slot with reduced performance.

 

[BUST_ER]

Motherboards usually dont fail like that.
If you have another pcie slot you can test the card there.
Even if the x1 slot is available you can test that. The card will work in that slot with reduced performance.

The GTX 1660 has a 8 pin PCIE adapter, I had to use both PCIE pins from my PSU for it and it still didn't work, in this scenario I guess it's just the PCIE pins on the PSU that are the problem, thanks for the information from both of you, I'm thinking of getting a
Seasonic FOCUS Plus Gold 750W

 

[NightHawkRMX]

That's a very good unit! shouldn't have any issues.

 

[BUST_ER]

That's a very good unit! shouldn't have any issues.

So I bought the Seasonic Focus Plus Gold 650w 80+ instead thinking 750 would be too much and I connected it properly and again it's doing the same issue, the gtx710 runs fine, in fact I'm using it right now to type this to you but any other gpu doesn't work, my gtx 1060 and gtx 1660 cause my monitor, keyboard and mouse to be unresponsive. This is clearly a issue with the motherboard now right?