Hi

i have a dell optiplex 7020 tower plus (2024) new version and i want to upgrade my cpu from i7 14700 to i914900k,

i want to know do i need to change my cpu fan and also do i need to change my PSU from 260W to 500W because it has a 260W PSU on it,

and when i changed my cpu from i7 to i9 i keep getting this error in the booting ( heat sink - not detected . chipset alert VR heat sink not detected) i am sure heatsink installed correctly and all the screws are tightend because i didnt get this error with CPU core i7 ,

please advise me to solve this issue.