I am concerned with a lack of knowledge about products by support personnel.  I just spent 30 minutes on hold to speak with an agent, gave that agent my service tag, told him the error message i was getting twice "Chipset heat sink not detected" and then had to spell it.   He placed me on hold for five minutes only to tell me i had the wrong number and hung up on me as i asked for the new phone number in case we were disconnected.  I am currently on hold for another agent on what i know is the worng number because i cannot navigate the dell website to find an appropriate number to call.  I am quickly realizing this is not the old Dell.  Exceedingly frustrated and own three precisions . . .