Assuming you're using the largest case they ship the unit int (Mini Tower), you're PSU isn't rated for a higher end card. The 7010 ships with a 250watt PSU and the GeForce GTX 750 Ti requires a minimum 300watt. The good news is, that tower should support a standard sized PSU. So you'd need to upgrade the PSU to a higher wattage in addition to the GPU. What kind of budget are you putting towards it?