The CPU cooler isn’t fitting properly.
The CPU cooler isn’t fitting properly.
It's an uncommon situation, though it hasn't occurred before; the OP might not realize this isn't the expected outcome.
Sure, if you don’t have common sense. Building a computer starts with placing the CPU inside, lowering the retention arm (for AMD), applying thermal paste, and attaching the cooler. The OP hasn’t replied to us yet. As my high school tech teacher often said by Frank Lloyd Wright, "There is nothing more unusual than common sense."
On am4 and with stock coolers, it's not uncommon to find this issue. There are numerous reports about the paste sticking tightly, like vacuum-sealed concrete glue, and it can be difficult to remove the CPU from the socket afterward.
It seems the CPU isn't properly seated because the lever is likely misaligned. This explains why the cooler can't lock into place. Be patient, since the earlier advice has already been noted.
I verified the pins are all aligned. You don’t need a hairdresser to warm the glue or remove the CPU.
Use safe methods to avoid harming the CPU. Follow recommended practices and ensure proper handling.
Ensure no bend pins are present. First, remove the CPU from the cooler and clean both components thoroughly. Next, lift the CPU carefully and place it into the socket. Lower it gently, then reattach. If you need further guidance on detaching, others might have useful tips.
Using dental floss can loosen the thermal paste enough for the CPU to detach. Alternatively, a small plastic object such as a credit card might push the CPU free. Work on a soft surface like a couch or bed in case anything flies away. Consider replacing the old thermal paste with fresh one if possible.