pls help with german

[grandpatzer]

I have a Lian li EX-50b, it has a big power brick.

Once harddrive's are turned on it starts making noise.

According this amazon reviewer he might have made the noise stop?

google translate didn't make me smarter...

Mit einem Kondensator (ich nahm 4700µF/25V) ließ sich die Stromversorgung soweit stabilisieren, dass weder durch Hotplug eine weitere Platte abschmierte, noch bei jener Platte dieser 'spin-down/spin-up' - Defekt weiter auftrat. Die Netzteilgeräusche wurden leider kaum weniger. Ich umwickelte die beiden Stromsockel-Pins an der Platine seitlich (von oben und unten) fest mit den beiden Anschlussdrähten (wilde Zangelei, je ca. 9mm verwickelt, auf Plus und Minus achten!), darüber steckte ich den Stromstecker von der Rückwand kommend wieder an - natürlich geht er jetzt nicht mehr ganz so tief bis zur Arretierung, hält aber immer noch ordentlich fest.

Amazon.de review

 

[mhenley]

I can't translate german, but I'm curious what part is making noise? Is it one of the drives motors? Do you need to add silencer washers to the mounting screws to reduce vibration? Is it the bearing on the fan? Is it a whine from the power supply?

 

[Tawnos]

He took a 25V 4700 uF capacitor and put it between the PCB's power socket pins. However, he said it didn't reduce the noise (from the PSU)

 

[Tawnos]

Also, the reason he used the capacitor was because he had some boot problem with the drive's spinning up and down. The capacitor fixed that, but not the noise.

 

[grandpatzer]

thanks guys for the explanation.

my english isn't the best but the noise that comes from the power-brick is "swooshing" noise as you get from waterpipes in home when water runs through or when you have heat elements with electric running.

It's really loud, I'm sure the fan adds to the noise, but once I put a 5/7v zalman the fan should be less noise than the harddrives and powerbrick.