My Graphics card gives no signal to the monitor even though it used to work before

Hello everyone so my mobo has 2 graphics cards AMD Rx 470 which i recently bought from like 2 weeks ago.

Today something happened i don't know what it is actually as i was leaving my computer opened normally and display were off, when i tried to turn my display on from idle mode by moving my mouse nothing happened computer working and everything but no display so i forced closed it and when i restarted it, one of my 2 cards were not showing on windows device manager even though the card is working and fans are spinning normally !!

I installed AMD drivers again with nothing but one card only showing up and working, i closed my computer and removed the working card, put the other one into its PCI-E slot and connected the same 8-bin Power cord of the other card then i restarted my computer but my screen is idle with no display signal !!

Any suggestions what could it be ??
or did this card died for some reason and maybe i need to replace it ?

Help me pls :/
3 answers Last reply
More about graphics card signal monitor work
  1. Do you have enough wattage to power your system? What PSU do you have? Did you accidentally zap any PC components with static charge while the case was open? Did a thunderstorm come through and possible flicker your power while your PC wasn't hooked up to a surge protector?
  2. @ErikMcleod No thunderstorm or flicking in electricity at all, it all happened in front me i forced closed my computer then restarted it normally.

    My PSU is 1000 watt HEC Cougar
  3. Alright so i returned my card & it turned out that it really was some issue in the card itself and they sent me a new one :)
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