CPU Postfix Adapter for Xbox360 Slim Corona V3/V4 postfix adapter for xbox360 Easy install to any Corona v3 or Conrona v4 motherboard that has the POST OUT removed. Simply remove the heatsink using the XCLAMP TOOL, clip on the adapter and you now have a perfect install point for your POST - enabling you to use your CR again :)No need to solder underneath the CPU or to chop up your motherboard.CPU Postfix Adapter