These marks are normal and not cause for concern.
These marks are normal and not cause for concern.
I acquired an i7 8700k and replaced it with my previous i5 6600k. After reinstalling everything and turning it on, there was no power reaching the motherboard. I tried a different PSU without success. The CPU came out with some burn marks—were these indeed damage marks? I had to remove the camera for clearer visibility of the areas. The marks are along the left side, mostly at the top left. Did this CPU cause your motherboard to fail?
Understood. For OP: I strongly believe nothing was harmed or destroyed during the process, only that the CPU likely came from its original packaging and remains entirely safe—you simply didn’t realize it until now.
This connection point is unrelated to compatibility; it's just a random occurrence that often functions. It's unlikely you damaged anything, and you're probably not the first person to experience this, though nothing serious occurred.
Thanks a lot everyone. I’ll reinstall the i5 once I’m home and wish it works again. I’ll share my thoughts on the assignment later.
Intel 6th, 7th, 8th, and 9th generations all use LGA 1151 connectors. However, I believe the 6th and 7th generations are built with 1151v1 while the 8th and 9th generations feature 1151v2. This makes them incompatible with each other. The 6th/7th generation boards support 100/200 series, whereas the 8th/9th generation boards are compatible with 300 series. It seems you haven’t caused any issues. Is it functioning properly with the i5 processor? I’m still puzzled as to why Intel didn’t introduce an 8th/9th generation LGA 1152 socket. At least there should be a clear distinction between the sockets!
It's odd they've done this repeatedly. I don't recall the exact setup—whether a new CPU in an older slot or vice versa—but during my research on motherboards, I found many warnings about mixing components and risking damage. Probably just my assumption, but we'll find out soon enough when you try the old CPU again...