This part of the review totally contradicts itself, the two sentences in bold.
How can the two cooling fans never turn of completely in the first sentence, but the cooling fans never turn on for no reason, as in the second sentence???
While idling, the P56XT could be quieter as well. The two cooling fans never turn off completely (even when the Smart Manager is set to "Quiet"), but continue running at a constant audible level of 34 to 35 dB(A). Apart from when the system is booting, the cooling fans never turn on for no reason, as is the case in the XMG P507. However, the P56XT does have some annoying characteristics. Depending on its load, the cooling fans tend to hum (while idling) or throb (under load).