I want to upgrade my cpu from i3 to i7. My motherboard socket is an old one which only allows LGA1150 socket. I ordered one, i.e. i7-4790T, from a web seller. However after installing it, my PC could not boot up.
Here attached are the photos of my purchased i7-4790T cpu image. Would anyone post the pic of a real i7-4790T cpu (front and back)?
You are premature in thinking it is a processor issue. What you need to do first is to ask the motherboard manufacturer if their bios supports the i7-4790T.
Doc (not an Intel employee or contractor)
[Maybe Windows 12 will be better]
The processor looks correct in that first picture. Not sure who put the label on the back (not Intel) - but it does point to it being a used processor.
Al is correct; the first thing you should have checked is whether the processor is on your motherboard's supported processor list.