I ordered a replacement fan from a link a guy on here gave me. Fan 3 is at 4,680 fan 5 is at 6,805 the temps are staying at 80c and below been running for an hour. Which is the exhaust fan and which is the intake and does this seem legit and safe? Delta QFR1212GHE Fan 12 Volt 2.7 Amp 12038 120mm*120mm*38mm 4pin https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F162854214490