Right now the CPU push/pull fans are on the AIO pump connector, good or bad, I don't know. May want to check with your MB manufacturer. #3, personally, I'd say that you should be able to plug two fans into each MB header without issue, as long as they draw 0.3A or less. #2, the only point when a fan install becomes unsafe would be plugging high-current server grade fans into a consumer MB header. So MB vs molex the difference is speed control. They also supply 5V, but it is unlikely that you had the fans wired for that. 12V is the max from a MB header, and 12V is what you will get from the molex plug as-well. 3 & 4 pin fan "Y Cable" spliters are a great way to power extra fans and retain speed control.ĮDIT: You posted JUST before I wrote my above post ^ Check your board specs if you're looking to put more than two "normal" fans on a single header. 3 amps or less, you should be fine putting up to three on most headers. Only thing I will add is, it is safe to put multiple fans on a MB fan header. (It's really an Amp connector, not Molex, if you want to get technical) You said almost everything I was going to say. Good catch JLK, I'm 100% the he is talking of the Molex plug, not IDE. And finding a four pin to Molex connecting wire may be a bit hard. Note, I still have three FSP intake fans in the front, that problem I will end up replacing with better fans in the near future, and I am worried about the same issues as now, as everything seems to be plugged into Molex rather than MB power connectors. And with all the wires and connectors and how the installer did things, it got confusing real fast. This probably seems like a very novice question, but I have struggled with this more this time than in the past as I have 10 fans in my correct system right now as I am running WCG and GPU grids more than I was before and I need to keep the PC cool. Note, I did find a site that sort of explains some of this, but I still kind of do not understand 100%. Anything I should know to avoid frying my MB or overdoing it? the differences between the Pins, PWM vs I forgot the other one, and the IDE voltage issues.Ģ. But that's another issue, so for now, the fan is working but the LEDs are not as I haven't plugged it in yet.Ĭan someone shed some light on two things.ġ. I have no idea why he had it in an Molex, as I read Molex seems to be less volts no? So maybe that is why the fan started dying? I am also looking for a ARGB extender, as the connection is at the front of the MB, and the connection to the new fan is way too short. So right now it is plugged into a Y MB slot, but only one fan on the Y, so I would guess I am safe to do this and not to over do it for voltage on the MB. I think the guy I asked to helped me yanked all that out and plugged it in to the AIO ports instead, he said it doesn't matter, same same. But it is not plugged into the same place as the installer had plugged it in. Note, I originally had a Cooler Master CPU dual fan heat sink, I pulled that out and put in a Noctura. So I ended up plugging this into an extra cable I saw laying around that connects to the CPU MB 4 pin connector. I can find a 3 pin I think, but not four. I cannot for the life of me find a 4 pin to IDE connector. So I bought a Sickleflow 120 ARGB fan that says it is a 12VDC 0.15A fan. He had connected to a row of 4 Molex connectors. And what I found was that this case fan was a DC12V 0.4A fan, but the connector was Molex, not 3 or 4 pin. Because of the above I just cut the wires and pulled everything through both directions. I just had to change out my rear exhaust fan as it was leaking oil and making noise. I had an installer do all the cabling and installation of components to my system, so the wiring is too tight and too organized to find where stuff leads. I am worried I am going to end up blowing my MB or causing other damage because I am not sure how or where to plug in the fans. I am incredibly confused about 3 pin vs 4 pin vs PWM vs whatever when it comes to power consumption of fans.
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