I just got my Graphic card Gigabyte RADEON R9 270 2048 MB. There are two places this will plug on the Mobo Asus M5.A97 LE R2.0. one is marked TPU and the other slot has Dual intelligent Processor. Which should i use for the graphic card? I'm not sure but I think you can add a second graphic card and tie them together. So do I use the TPU slot?