("i bought a Intel Pentium4 prescott 3,4/1M/800 (550) HT, SL7J8. After the install, i got a messages "Alert! Incompatible Processor Detected. System Halted". I tested it other power supply (305W), same as the result. bios is 08, latest.)
There isn't a 305w power supply for the GX280 and a standard power supply does not fit.