Synology RS815+ Rackstation Series | Fan Upgrade

[Guest Peter the Greek]

I don't suppose by chance anyone has done a fan upgrade on one of these? I'm sick to death of the noise.

 

I found one reference online to a Noctua upgrade, but it was a bit hit and miss - didn't work, then worked etc. Its got 40x40x20 fans in it. 12v I'm pretty sure