Question Graphics card (gtx 1060) not working?

[timnieland]

Hi guys,

I have had some problems with my pc for a while now. The problem happens on random occasions when I try and boot my pc. When I try and boot my pc it will just give no HDMI signal output and the VGA debug light is on.
So naturally, I tried a different slot on my motherboard (Z270) with the same result. Just to be sure I tested the GPU in another pc and again no output.
Since I thought my GPU was broken I bought another GPU (Radeon RX580) and installed it in my pc. First time booting up I get the same result as with the old GPU. The second time it boots normally and when I try my old GPU again it also boots normally.

Anyone know how this can happen?
Different things I have tried are: replacing HDMI cable (shouldn't do anything) and replacing the power cable.

 

[WildCard999]

What PSU do your have?

Did you connect the PSU to the graphics cards?

 

[timnieland]

What PSU do your have?

Did you connect the PSU to the graphics cards?

I have a 'be quiet pure power 10, 500W 80+ silver'
video cards were connected yes.

 

[WildCard999]

Did you try a different connection besides HDMI?

 

[timnieland]

Did you try a different connection besides HDMI?

My tv doesn't have any other connection but I'll see what I can do, I'll let you know in like 1 hour or so!

 

[WildCard999]

Besides trying the other HDMI slots make sure the card is properly seated in the PCIE slot.

 

[timnieland]

Besides trying the other HDMI slots make sure the card is properly seated in the PCIE slot.

I get a normal signal from the other monitor with DisplayPort but just like I said, it doesn't happen every time so it's always a guess when I try and boot up the pc.
Card is properly seated in the PCIEslot, I checked.

I know we haven't gotten to a conclusion yet but already thanks for helping me with this problem