I bought a 7870 earlier this morning and I replaced my old gtx 550 ti with it but after I did that the computer wouldn't POST. I checked RAM, pci-e gfx card connectors, cmos battery, usb devices and nothing. I put the old gtx 550 ti in and it doesn't post either. No beeps or anything with either card. Fans and hard drive spin so idk. Last thing I did with the computer was shut it down the night before. I'm hoping it's not a shorted mobo because I really don't feel like having to buy a new mobo already.


I know I was grounded that day. 



