av Simp_the_pimP » 2015-04-21 08:23
Har kollat runt på dom trådarna nåpgra dagarna nu och inte riktigt hittat det jag söker.
Såg på ett Amerkanskt forum att en person hade använt en Noctua 12 volts fläkt och använde de medföljande "ultra low noise" motstånd, med enligt honom bra resultat.
Är det en bra lösning.
"The EP4000 uses a 24v fan. But the fans I ordered are 12v. If I had searched the internet before I opened my EP4000, I would have discovered this, and the fact that Digi-key and other vendors sell low-noise 24v fans. However, I now had my EP4000 open, and I just happened to have a Noctua fan that comes with resistors, so I did a little experimentation. I cranked my power supply up as high as it would go, which was only 16v, but that is enough for my test. I installed the "low noise" resistor, and measured the voltage drop across the fan. 10v, which is a little too much. At 24v, the fan would be getting about 24 * 10/16 = ~15v. So next I tried the "ultra low noise" resistor, and got about 6v. That means that the fan would get 24 * 6/16 = ~9v maximum, which means that I can use the Noctua fan + "ultra low noise" resistor in the EP4000. I did one final test to make sure that the fan would get enough volts to spin upon startup, and it did, so I proceeded to install the Noctua fan and "ultra low noise" resistor into the EP4000. I took a little care to cable tie the connectors inside the case so that they don't rattle or disconnect themselves. I don't have a lot of time on this mod yet, but I am confident that it will work fine long-term.
So, the Noctua NF-R8 with the "ultra low noise" resistor is another option for the EP4000 fan mod. I bet that it is quieter than the common alternatives, but it probably also flows less air."
Vad tror ni?
//Simp
