Question Black screen

Jan 9, 2020
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Hi there! So today I bought a Zotac GeForce GT 710 2G DDR3 for my pretty old setup. I installed the card as I was told and I powered it up. Everything started fans lights etc. but there was no display no nothing just blackness. I went right on the Internet and saw that maybe I need to enter bios and set the display on the PCI cause I used onboard graphics until now. I plugged the cable on the onboard graphics with the card still plugged on the motherboard. Again, everything worked but no display no nothing pure black. I tried accesing the onboard graphics without the card plugged on the motherboard and everything worked fine got into bios etc etc. So with the card in, no display but without it everything is fine. What could this mean? Here's the dx diag and the PSU is a 240w one. Thanks in advance!

View: https://m.imgur.com/a/IaapfdL