Hello, I currently have a few tabs about upgrading a Dell OptiPlex 775. I'm getting very confused and a bit tired so instead of asking a search engine about this, im going to ask forums with people that are tech savvy. Speciffically a Dell OptiPlex 775 MT is what I want to upgrade. 1. Power Supply When or if I ever upgrade a Dell OptiPlex 775 past a GT 1030 and an SSD I may need a better power supply since the 305W power supply may not be enough or the poor thing would be at max constantly. I want something a tad bit overkill, 400W - 550W is plenty. Any Recommendations that would fit the dimensions (and maybe the power wattage too)? 2. Memory Since the Dell OptiPlex 775 MT, i have only have 4GB of DDR2 memory installed; I would find it lovely to have at least 8GB of memory, when I went to the crucial site they only had 1, 2 and 4GB memory. Any recommendations of 8GB DDR2 memory? 3. CPU I just recently read a thread for CPU upgradability for a Dell OptiPlex 780. What about an OptiPlex 775 MT? My eyes are locked on for an OEM Core 2 Quad Q9650. Good? Bad and just keep looking? 3.25. Heatsink + CPU Fan If the CPU is good. CPU Cooler Recommendations? I just want something that can cool better and that will fit. 3.5. Thermal Goo/Paste Now for last of 3.xx, recommended thermal goo? Sorry if finding these answers may trouble you. I am new to this place Thanks, for answers.