I’m using bios version 1040.
The 7700k has been supported since 0604, same with the g4400 that I had used prior.
Ok, this information will help the Intel support staff assist you.
Your using a low wattage power supply (PSU) - your old CPU used 54 Watts and the new one uses 91 watts - so now there is more draw/drain on the PSU. Not all games and apps will draw the same amount of current from your Power supply (that's why some games would be crashing and not others) The more work a CPU does the more power it draws. So when you disabled Turbo mode it helped fix some games because Turbo Mode requires more wattage out of the PSU.
Try upgrading to a 500-650 watt PSU - Though I highly recommend going with a larger than you need PSU so aim more for a 650 watt (and don't get a cheap brand they fail so easy - and quite often the cheap brands will print over rated stickers on them as to how much power they can handle - when in reality they fail) A good way to know if a PSU is good is to make sure it has "80 Plus" symbol.
(Larger than you need PSU is good because it stresses the PSU less which means less heat which equals longer life.)
This message was posted on behalf of Intel Corporation
Thank you very much for taking the time to reach the Intel® Communities Team.
I understand you are having some issues after upgrading you CPU. Allow me to help you regarding this issue you are facing.
As ϟtåƦ♐ mentioned, it seems that the problem is the PSU which is providing a low wattage for the components your computer has. I was able to double check that by using this 3rd party wattage calculator: https://images10.newegg.com/BizIntell/tool/psucalc/index.html?name=Power-Supply-Wattage-Calculator
Thanks guys for the feedback. I’ll be ordering a new psu shortly. I bought this thing from a friend, so I assume that he bought a very cheap and unreliable psu to spend money on other components(since he was building on a budget). If I have any other problems after I replace it I’ll be Back.
Thank you guys again