Pictures would help, but there's probably not much to be done if there is physical damage. Sometimes you'll get lucky and only damage something you can work around (1 bad memory channel, some PCI-E lanes not working, temp monitoring not working, etc) but the rest of the system will work and it can be used with some minor workaround. Other times it's just dead. Double check the CPU socket too and make sure you didn't get thermal paste in there or bend any pins. Poor pin contact can cause all sorts of odd issues too depending on which pins aren't making contact.