I’ve got 13U powered by three Intellijel boards. Really like them and never had noise issues until recently. Still working on what change of modules suddenly made things not play together nicely (high pitched whine). Might be upgrading when the new ones come along!
Also, isn’t linear supposed to be better than switching when it comes to noise? I think I read somewhere that the supply is switching but then the board converts to linear. I’d like to learn more about this as it’s all over my head.
I’m about to build and power a 12U168HP case. Having read many posts and reviews about power supplies l came to the conclusion that you can never be sure. At least for the reasonably priced ones. Think that Intellijel psu’s is the most compact and reliable solution for that kind of money. Even if they’re switching. I think I’ll use 4 TPS30W MAX. Any suggestions?