Hi, I recently bought a GTX 1650. I’ve put it all on correctly apart from the 6 pin connector as I can’t find anywhere to plug it in on my PSU or motherboard. There’s just no spare slots anywhere for anything. Any help? Thanks.
that looks to be a proprietary PSU, you'll need to buy a new one by the looks of it. Looks to be a popular choice on youtube if you search for optiplex 3020. Would need a 24 pin to 8 pin power adapter as well.