I have a PC Power and Cooling 510-SLI Deluxe PSU sitting in this room and I tried to install it 2 weeks ago into my Antec SLK3000B and it was too small to fit in the case. What should I do to get the thing to fit in the case? One of my brothers said to only put in one screw to hold the power supply in the case and another is talking about a Power Supply bracket or whatever those things are called to make the thing fit into the case. What can I do to install the new PSU? I don't want to have to RMA the thing. Would only using one screw do the trick or would I be setting myself up for disaster?