I've been searching for days a new gpu for my dell inspiron 3647 sff case, with only 220w psu, i know that the gpu must be a low profile, i found a gtx 750 ti low profile from zotac, but problem is it needs 300w psu, after that i had started searching for any psu that fits in my case with the minimum of 300w, like i said i'm searching for days so please help me find this.