1660 Super DOA ?

[Drizard]

Hello all,

I recently purchesed at Gigabyte 1660 Super to replace my GTX 960 i use two monitors that are connented via DP to HDMI leads on my GTX 960 this worked fine. When i plugged in my 1660 via the DP cable i see the boot screen but once i flick over to windows i loose all display output, I then power down and changed it to a single HDMI cable out to my monitor and it works i installed all the current Nvidia drivers and it works well on 1 HDMI cable so i restarted my machine but swapped out the HDMI to the DP cable and i still have the same issue. I dont think my card is dead ( but i could be wrong ) i can see when it post via the DP once it flicks over to windows no luck any help would be apprecitated my set up is :

 

Ryzen 3600

Tomahawk b450 Max Motherboard bios version is 7C02v35

16 GB ram Thermaltake

600 watt Antec Power supply

GTX 1660 Super driver version 446.14

[Haro]

4 hours ago, Drizard said:

600 watt Antec Power supply

This is raising a couple red flags

4 hours ago, Drizard said:

i plugged in my 1660 via the DP cable i see the boot screen but once i flick over to windows i loose all display output,

Did you try it in another system ?

Is the card dedicated at the very least 

Did you try ddu ? 

[Drizard]

I just used DDU to remove old drivers for a fresh start once that finished i shut my pc down and plugged in my DP cable and i could get back into windows this time i let windows update handle the install as soon as it updated i lost signal again. So i repeated the same process but i downloaded an older version of Nvidia 441.20 and as soon as it installs the graphics driver i lose the DP but i still have HDMI. The power supply worked fine with the GTX 960 so i dont think thats an issue. I dont have another system to try it on at the moment any ideas would help cheers @TofuHaroto

[Haro]

1 minute ago, Drizard said:

I just used DDU to remove old drivers for a fresh start once that finished i shut my pc down and plugged in my DP cable and i could get back into windows this time i let windows update handle the install as soon as it updated i lost signal again. So i repeated the same process but i downloaded an older version of Nvidia 441.20 and as soon as it installs the graphics driver i lose the DP but i still have HDMI. The power supply worked fine with the GTX 960 so i dont think thats an issue. I dont have another system to try it on at the moment any ideas would help cheers @TofuHaroto

Can you maybe try is in a friend's system?

If possible 

 

[Drizard]

I manage to sort the problem out my DP lead must not be great quality I purchased a decent one and all is working @TofuHaroto