Hello, I changed my CPU from an Intel i3 4160 (2 cores 3.6 GHZ, LGA 1150) to an i5 4570S (4 cores 2.9 GHZ, LGA 1150) hoping to improve the gaming graphics. Now the onboard INTEL 4400 graphics is missing, vanished, gone. The graphics driver is now a Microsoft generic, The board is an ECS H81H3 M4 Haswell mini ATA with 16 GBytes ddr3 memory. The BIOS reports that the CPU is missing the hyperthreading function. That is unrelated to the problem, right? Can anyone help me get my onboard graphics back?