I have an older HP pavilion with PEGATRON CORPORATION 2AC2 MOBO. I have 8 GB of Ram. I tried to install a video card so I could have Open GL 3.2 (have some graphics software that needs it), but I never could get the computer to get past the setup screen. I have upgraded the PSU to 750 watts. Once it gets to the first screen with information and press ESC for setup, it goes no farther. Fan on the card is running. It is pretty much locked up at this point. AMI Bios version 7.14. PCI express 2.0 card. I'd really like for this card to work.