Melted PSU CPU connector
This customer brought in a Desktop PC that wouldn’t boot up into windows. The system was completely dead and had only just had the power supply replaced recently by the customer.
During the testing process, we had to check out the power supply unit (PSU). When the CPU power connector was unplugged, it was apparent that the plug had melted into the socket. We were, therefore, unable to test the motherboard properly as we couldn’t connect another PSU into the socket, as there were the remains of melted plastic from the PSU Plug.
It could have been a motherboard fault or a power supply fault, but also quite possible that the melting of the plastic on the plug may have had something to do with it. Although the connector and pins in the socket appeared to be intact, other than the fact it was a bit melted.
this melting is not too uncommon and it is due to the high level of power required for some CPU’s. in this case, it was an AMD FX8350 CPU that can pull massive125watts of power. Compare this to a more modern Ryzen 5 2600 and it only uses around half the power at 65W.