Monitor disonnecting from Sapphire nitro RX 480 8gb OC on startup!

[Wooski223]

This graphics card is very new and since I got it I keep having problems with it shutting down. First problem was when it was shutting down with a 750 w power supply and the recommended psu is 500w. It got fixed by adding a pretty expensive coolermaster 850 w psu. Then I also had problems with shutting down after a few hours while inside a video game. And yet again I have a problem with the gpu just not working or shutting down on startup. The only way I fix this is if I connect my hdmi cable into another socket on the graphics card itself and then restart my computer.

 

[scout_03]

test that gpu in another system and if it made same issue rma it .

 

[Wooski223]

test that gpu in another system and if it made same issue rma it .

I dont really have a way of doing that

 

[scout_03]

not even a friend or computer shop around .

 

[Wooski223]

The computer shop that i go to is a 45 min drive and my dad is really busy and i dont think any of my friends have as powerfull power supply

 

[scout_03]

if you use the second hdmi port does card work as it should also it have dl-dvi-1 connector did you try it .

 

[Wooski223]

Thats the thing. Both hdmi ports work, I just have to switch between 1st and second one every time i turn on my pc and then I have to restart it. I didn't get the last part of the message. What is dl-dvi-1 connector?

 

[scout_03]

look at you gpu in the back connector it is this the connector below the 2 hdmi ones that they circle on the picture http://sapphirenitro.sapphiretech.com/en/480-8.html

 

[Wooski223]

My monitor doesn't have that connector and I don't have a adapter

 

[scout_03]

does on of you tv have a pc connection for test or even another hdmi cable you could for doing it to see if it is the cable or gpu that is defective .

 

[Wooski223]

I just remembered that it has to be the cable, because when we tested my computer in the pc shop we turned it on and it didn't happen, it went straight to the login screen. Thank you for your help anyways.

 

[scout_03]

your welcome .