HP-D3006A0I'd say yes, but just to be sure;
what is the make and model of your PSU?
which specific flavour of 750TI are you using?
thank you so much!As long as your gpu doesn't need a 6 pin cable you should be good
I have actually installed a 750 in exactly the same case
But it should work yes, the 750TI has a tdp of 60 watts, so the psu should take it (psu 320watts)
tl;dr: YES