It does mean you will never "see" the speed of the second fan. I am currently using the black and red wire. My fan is powered by my psu because my fan controller does not have enough Watts to run my 12 watt fan. I want to be able to see rpm and also control the rpm with my controller. So it has all of its pins on only one of its output connectors. 1 I have a 3 pin fan controller and I want to use my 4 pin fan with it. The mobo header can only deal with the speed signal coming back to it from ONE fan. You should know one thing when using this device. You do not need that, and it is more expensive. It is a different type of device and it can be identified because it has a third type of "arm" or cable that must plug into a power output from the PSU. It has three outputs, but 2-output units are common.ĭo NOT get a HUB. the fan controller may need a dedicated power from the PSU to provide power for all the fans. it allows you to connect a fan and another device to one molex power cable from the PSU. That happens to be a 4-pin model, but it will work perfectly with 3-pin fans, too, of that is what you have. is one molex male and the other female if so that is a pass through port. Here's an example, but these are easy to find. As long as the total does not exceed 1.0 A, you have no problem at all.Ī SPLITTER is a simple device that merely connect both fans in parallel to the output from the mobo header, so that's where all the fans' power comes from. For two fans, just add up those specs for each. And that is answered entirely by the fan's max current consumption spec. Your only concern is whether you can safely attach more than one fan to a single header. When you use the system included on your mobo for control of a fan (or more than one) by a SYS_FAN header, the SITE, the TARGET, and the security of mounting all are taken care of by the people who designed that board. Make sure your computer is well ventilated. We have entire guides on cleaning out desktops and laptops. If it's dusty, clean it out (especially the fans) with some compressed air. Where is the right place to sense the temperature of the hot item to be cooled? And exactly what temperature is "right" for that spot? The lesser factor is how well your sensor mounting will stand up to disturbances that might disconnect it from the thing you want to measure. Open your computer and check for dust buildup. You are concerned with a second case ventilation fan. The largest problem with those systems is in identifying both the SITE for mounting the temperature sensor, and the TARGET TEMPERATURE they should use for control. Go ahead and plug your fans into your motherboard. When under load it spins up, makes a little noise, all fine. My temps are surprisingly good and generally when browsing the fan on the PSU stays off in its hybrid mode. But they work and certainly are better than no control. On some units the fan will be speed variable, this is where you plug it into your motherboard to control the speed. Hi, so Ive got this new PSU in my ITX build, the case ive got has very restricted airflow, in fact it has no exhaust fans at all :eek: Its the Silverstone Milo ML-08.
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