Upgraded old graphics card to Rx 470. After plugging everything in, I get a black screen on boot, no option to enter BIOS either. Card fans spin so doesn't seem to be DOA. I can take it out and boot with onboard graphics or the old card fine. Tried updating BIOS. Not sure what to do now, should I dish out a couple hundred more for a new Mobo+CPU+ram (which are all pretty outdated)