eh.. mine is hx850, new.. not sure if convergent will rma it..Quite common. My previous Thermaltake PSU developed coil whine after about a year. The one before that, another Thermaltake of the same model, went a few years without problem. (Bought both at the same time)
Disposed of the whiny PSU and replaced with a Corsair AX1200i and it's been blissful silence ever since.


