Hi, I also recently made a modded 240W PSU for the Clevo P150SM (Haswell successor to theP150EM), both of which use the same 2.5mm x 5.5 mm barrel connector. I had also posted a guide for making one in the NBR forums: HTWingNut's Sager NP8250 / Clevo P157SM Review - Page 5 The stock 180W Clevo power supply does not provide enough power for overclocking the GTX 780M (e.g. MSI Afterburner overclock at 980MHz / 6000 MHz). You can easily see stuttering in games and benchmarks. However, with t