The tubing size was large enough to fit snugly over the wire without excess/sloppy diameter. A tiny piece of heat shrink tubing (about 12mm long) was applied to the cut wire and overhanging the end by 5mm.In preparation, the wires were cut at varying lengths to avoid termination all at the same length.I switched to using heat shrink tubing to cap off the 5-wires that were cut in order to remove the unneeded Sata and PCIe power from my recycled Server Flex-ATX PSU for an APU/no GPU build. But I don't know for sure if that is the situation? Maybe I need to try heating it up with a Prime95 stress?Īnyone have experience with these server PSUs? Is fan shutoff normal for my APU-Build? If the fan only needs to run at slow speeds (OR OFF) for my APU-Build then that would be great!! I wouldn't even consider doing a fan mod for excess fan noise. Maybe the PSU is just not hot enough to require the fan? I tried a mild stress test using Asus RealBench to heat-up the 3400G-CPU to 75c. So I am guessing that this PSU has its own built-in fan speed control? The cable from the 15x40 mm fan is a 3-pin cable (Red, Black, Blue) that plugs into a 3-pin fan receptacle on the PSU-PCB/Printed-Circuit-Board (see pictures). The PSU was only mildly warm when touched with your hand, but after my normal use for an hour or so it is more than mildly warm but still not hot.The fan remains shutoff for subsequent startups unless the AC/wall-power is disconnected again.After the initial full fan speed startup the fan shuts off completely.The PSU-fan starts with a howl at full speed each time the AC/wall-power is disconnected.The 350W-PSU-fan starts with a howl at full speed each time the AC/wall-power is disconnected and then slows for a moment and then forever shuts off after the initial burst of fan speed. My test platform is an APU-Build/InWin Chopin/ASRock B450/Ryzen5-3400G/150W-PSU with the Chopin-150W-PSU unplugged and the Delta-350W plugged in its place. I received this Flex-ATX Delta DPS-350AB-12 A 350W 80 Plus Silver PSU, and did some preliminary testing for trying to evaluate noise levels of the 15x40 mm PSU fan.
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