SpdTrp Posted December 24, 2013 Share Posted December 24, 2013 So just yesterday I purchased and installed the H100i in my NZXT Phantom case, fired her up and at the time all seemed well. After sitting down and using my pc for a few hours I started to notice a rather loud higher pitch humming noise. I checked fan and pump speeds and all seemed nominal, so with the noise still occurring at all times I decided to do the old screw driver to the ear technique. Eventually, I narrowed it down to the back bracket behind the motherboard, if I applied pressure to it against the board the humming would cease. After removing the pump the brackets became dead loose, nearly 1/8th of an inch of space appeared even when the the standoffs were fully tightened. A simple fix was to put a little bit of heat resistant tape in the space between the back bracket and the motherboard. I tightened everything down, and everything is good to go. Decibel rating was at 54db with the noise and it's now down to 41db. Sorry for the lengthy post, but I just want to put this info out there for those with the same issue. Also I hope to replace the fans on the radiator in the future since they are mega loud when spooled up. Link to comment Share on other sites More sharing options...
wytnyt Posted December 24, 2013 Share Posted December 24, 2013 when the cooler isnt mounted the backplate will be slightly loose as its supposed to be. it sounds like one of the cooler screws was slightly loose causing a vibration... Link to comment Share on other sites More sharing options...
SpdTrp Posted December 24, 2013 Author Share Posted December 24, 2013 This wasn't slightly loose, over 1/8th of an inch is too much by my standards. Maybe all that was needed was some type of vibration dampening. Link to comment Share on other sites More sharing options...
wytnyt Posted December 24, 2013 Share Posted December 24, 2013 is your msi m/b thinner than standard thickness,this issue has happened on thinner boards Link to comment Share on other sites More sharing options...
SpdTrp Posted December 24, 2013 Author Share Posted December 24, 2013 Actually now that you mention it, the darn m/b is paper thin and very flexible. Good point! I should have learned that by now since I manufacture electronics. Link to comment Share on other sites More sharing options...
wytnyt Posted December 24, 2013 Share Posted December 24, 2013 Actually now that you mention it, the darn m/b is paper thin and very flexible. Good point! I should have learned that by now since I manufacture electronics. then a rubber/nylon washer will fix you right up,these coolers are machined to standard specs but lately a couple m/b manufacturers have not followed suit... Link to comment Share on other sites More sharing options...
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