PSU & mobo incompatability!? in Hardware Hangout Posted February 14, 2006 I just purchased an ASUS A8N-SLI Premium Socket 939 NVIDIA nForce4 SLI ATX AMD Motherboard - Retail motherboard and tried to install it in my A-Top Xblade 450w case. The plugs appear to be identical, but the socket on the mobo is much bigger then the plug coming from the PSU. Is there some kind of adaptor I need? Or am I going to have to replace my power supply?The case says mobo compatibility ATX and the mobo is an ATX. What is going on here?