No display - windows 10

May 20, 2018
5
0
10
When powered up.

No display - showing 640x480 60hz

Ryzen 5 1600
Corsair 16x2
Zotac 1070ti
Psu 650
Gigabyte ab350

Already rebooted the dektop multiple times.
Already changed slots for ram and did the same for gpu

Gpu fan is turning on and lights up

 
Solution
Give it a try and check your GPU on someone's else rig, your friend or someone ;D
If its working then its probably a motherboard failure.
Wait sorry didnt mean to press downvote - first time here.

It was a set up from last december

It displays black screen and shows resolution 640x480 from my 4k screen and 1080p monitor
 
Update - took the GPU from the store where I bought it to test. Confirmed that the GPU was dead.Good thing it's under warranty and will have another GPU in a week. Thanks!