I'm always worried about cps1 and if it fails I have 3 I bought many years ago all street fighters, I have heat sincs on all the customs including one on the c board my champion edition sits in my cab with 2 80mm high air flow fans behind it blowing cool air through all 3 layers it doesn't even get remotely warm, I wonder the reason there is a low failure rate in the cps2 is because they are air cooled it has a high air flow fan in it, the original fans kept it really cool that's why I don't swap out the fans on a boards, it's in a cab so can't hear it so not worried about the noise.