Normal
My 2400G sig rig uses a fanless flex ATX 150W(120W 12v rail) no issues in any benchmarks for power or heat(though TDP capped at 65W in MSI-450I BIOS), you should be OK. I've run an i3770K off the same power combo as you but my case(morex 557) did force me to turn turbo off to keep CPU heat manageable.
