![]() ![]() I'm going to wait a few days before uninstalling the original Apple PSU fan which I will clean & de-dust and keep as a spare.Īs for the CPU tray fans, over the coming week I will be removing all of them for cleaning & a thorough de-dusting to an " as new " looking state with all blades returned to a polished condition. I surmise that with the Noctua installed PLUS the PCI bay fan working at peak performance that there was a general, overall case temp reduction ( I already have a USB externally powered 16.14 CFM fan up against the NorthBridge Tdiode's heatsink. I got it so clean, no dust and polished teh blades& internals util they were in their original SHINY, dust free condition that when I booted up ALL pcie bays temps were DRAMATICALLY reduced. I expect lower temps after I remove the original fan and correctly install the Noctua.Īdditional bonus : Due to the fact that I had to remove the cMP's PCI bay fan to get at the PSU fan power socket. I elected to remove the PCIe area fan which made this a 5 minute job.Ĭonsidering that in this test, the original Apple fan was still in place BEHIND the Noctua but disconnected not powered, the resulting dramatically reduced PSU temps were amazing. the only hassle I had was connecting the Noctua power cable to the cMP's on board PSU power socket. The Noctua installed with the PWM NA-FC1 PWM controller makes this a lot easier. so replacing this fan is a real nightmare. On top of that, the apple standard PSU fan cabling requires the motherboard ( backplane ) to be removed. With the original Apple fan removed and the Noctua NA-FC1 PWM speed controller inline and the cMP's side cover installed I expect very good results in terms of low noise and much lower PSU temps.Ĭonsidering that in a standard 4,1 or 5,1 cMP standard PC replacement fans can be used but will not have any fan speed control due to Apple's propriety PWM design. ![]() I have no idea what levels audio professionals expect but so far, for me Im quite happy with the Noctua's nocie levels at 1,614 rpm with the side cover off. With the side WPM NA-FC1 conenctedcover replaced I expect even better noise reduction. The Noctua is supposedly running at 1,614rpm but the Apple fan was running at 1,000rpm before and is due for a de-dusting & cleaning. This with the cMP's side cover removed so far. To be honest, I can't tell the difference between the Apple or the Noctua fans. ![]()
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