Advertisements New Bolts MAY be coming with much better fans - even better than the recommended replacement fans? I am starting a new thread on this so the information does not get buried in all the other complaints about noisy fans and poor cooling. Those other threads regularly recommend replacement of the stock fan with a Blacksilentfan XS-2 to both make the box quieter and lower the temps by about 10 degrees. My experience has been very different. If you have a new 2017 Bolt, you may not need a replacement fan! I currently have three Bolts, and I have zero complaints about the noise on any of them. My first one, a 1TB model with the original drive installed, was new in September, 2016. The ODT temp on this box remains around 59 - 62 degrees while sitting on an open glass shelf. But the real surprise seems to be my brand new 500GB box, built on 4/1/17. I installed a Toshiba 3TB drive in this box (uses much more power than the stock drive), and it is sitting on a wood shelf in an enclosed cabinet with the UPS and other heat-generating equipment. I ran this box for a month with the stock fan, and never saw the temp go above 69 degrees. Yesterday I replaced the stock fan with the recommended XS-2, and guess what? The temps did NOT go down at all. In fact, after only running for a few hours, the ODT was showing 71 degrees! I did make sure the new fan was spinning before I put the case back together. I'll poke around a bit more today, just to make sure no wires or anything might be fouling the new fan, but if I cannot find anything wrong, I'm going to put the stock fan back in this Bolt.