Burnt CPU - Urgent

[Gelf]

Urgent because I need to make sure its my CPU burnt and I don't buy new CPU for nothing. I turned on PC after putting it in new case and nothing come up, and then I turn it off and smell burn. I incorrectly put together my thermaltake volcano7+ i think, i connected the two wires to the mobo and the single yellow to the switch. Now when I turn it on I just get long beeps. I took everything out except for hd, ram, vid card, still the same. Took out ram, still the same. Checked the ram, no burn signs. Checked the CPU, but I dont know what burnt cpu look like. I can see some black stuff on the side, but I cant remember if it was already there or not.