Molex fans not spinning I know that when i plug them into the motherboard i can control the speed etc so i did that and The top exhaust fans on my Kendomen Deepcool case randomly stopped spinning. Please help. your best bet is to purchase some modern fans with PWM control and a compatible hub to connect them to. I've tried using other molex cables to connect to the one that's connected to the fan. So I am in the process of upgrading my PC and my case came with 6 RGB fans and a fan Hub. If yes, first step would be to use different plug/cable CPU_Fan has cpu cooler fans attached. Most likely because I haven't plugged them into a sys_fan header but the problem is, I can't find a 4pin connector from the controller or the single fans. If I help and spin the fan manually, then round it goes until I power off. K. Buy a 5 1/4 fan control unit that has molex connections for fans and speed control of them. It was clear that the power supply was dead or something. Any ideas ? After connecting some fans with a fan port and connecting it to the "main" cable, my circuit was completed. My molex connector was only putting 3 v on the fans. I figure by this point the fan controller is faulty. So I plugged the argb header into the Jrainbow2 slot. Any help? [Build Guide] How to connect RGB fans with Matrexx 55 Case - YouTube Click to expand So i plugged the 4 pin into the 4 pin cpu slot and got the fan i plugged i to spin, but the leds weren’t on because the molex was unplugged, i cannot reach the 3 fans to the motherboards and the fan spot on the motherboards has only 3 pins I have an RGB hub and there are 6 Fans RGB connected to it - I power it directly using a Molex connector from my Power Supply (No daisy chains, nothing else on that connection). This occurs every 5 seconds or so. I forgot to mention that the machine wasn't even posting. The fan controller is a molex. I have tried to search up what to do but will not work have just 1 controller, make sure the power is connected to the PSU molex directly - no extensions or There may be a bad wire in the fan loom also, so, if you have an extra fan/molex connector (Some MOBOs ship with one), try plugging the CPU fan directly into a PSU rail (and, of course, plug some fan, any fan, into the CPU fan connector so the BIOS will be happy). Hardware. You say "connecting it to the motherboard fan slot shows inacurrate data like 7k rpm but still is not spinning". Do they connect using molex or using When I turned on my pc, the fans lit up but did not spin whatsoever. A 3-pin fan plugged into the motherboard can be voltage-controlled, As it turns out my GPU fans are not spinning at all, until the overheating occurs. Forums. The fan LEDs are working but the fans are not spinning. Connecting WHICH cable? Normally you can NOT connect either a lighting cable or a Molex 4-pin male to a mobo male fan I got two mf120r 3 fan packs. You need to attach the Molex cable from your power supply to the white connector to power the fans. Only 5 fans turn on the RGB and 1 does not (Only RGB is connecting to the hub, not the fans itself, Fans spin fine they are connecting to the mobo) I was able to connect four fans and they all spin at low RPM but connecting the fifth fan shuts down the PSU again. I decided to unplug my molex connections (2 case fans) just for giggles and now it works fine. The fans still aren't spinning Even with the best quality fans, I personally would not tolerate the fan noise 10 spinning fans will produce. Cullinan MX RGB case. Double-check that this connection is secure and or reconnect it. Not sure if it’s related, but sometimes in the Bios the front fans’ (slot 5) RPM isn’t shown. 3 fans are dasiy chained and a separate 3 fans are daisy chained, both are connected to sl infinity controller port 1 via splitter. Fans not spinning . Do I have to plug the fans into my PSU to get them to work? I just finished building my custom PC, and I have two 80mm fans that have molex connectors, but not the three pin cables that connect to the motherboard (mine is a MSI H55M-E33). Just wiggle them a bit Is the cpu heatsink fan not spinning or the northbridge (copper) heatsink not spinning? If it's the northbridge fan, try plugging it into the three pin connector that's right next to it. PC case fans play a vital role in keeping your PC cool and running your computer smoothly. If they're powered by molex, no surprise they're not detected. Or look on e-bay for a modular cable from one of your power outputs that converts to a molex connection. I don't have the connector that connects directly to the PSU. There's another 3 pin connector labeled "gigabyte" but it doesnt plug into my sys fan header. (normally must be powered by a PCI Express 6-Pin or 4-Pin Molex power cable, depending upon age/generation of the adapter and what the manufacturer chose You got LED plugged in, not fans themselves, there are 2 connectors from each fan, LED ones are connected to controller, other ones are connected to 3 way splitter to molex, just plug molex to molex on your PSU, or connect those 3 fans to 3 headers on motherboard which i didn't have and i had to use molex So When shut down the PC is "off", but the PSU is "on" (switch on back in on position) there is still 12V on molex (fans still spinning) but when main switch on back PSU is "off" (fans stop spinning) and when switch him back "on" I can see MOBO is powered but there is no 12V. Front Fans not spinning Hello people, just finished my new build in the p500a and thankfully it turned on and everything seemed to work fine, however I noticed the front fans are not spinning. this will either be a 3pin DC, 4pin PWM, or possibly a molex connector for RGB fans spinning but no RGB . Question from josh1002 : "Fans not spinning on startup" My Deepcool rf120 3in1 fans are not moving when I turn on my pc. I then daisy chained all fans with the molex connector whilst still having them plugged into the hub but I do not see the If the fans still dont spin it could be just a faulty fan controller in the front I/O - you can get a replacement for that by contacting rosewill, or alternatively switching it out for another case or switching out the fans for other Molex fan is connected directly to PSU. I have 6 lian li sl inf 120 argb white fans in total, they are spinning but have no rgb. It should have come with a fan controller and remote in the back of your case somewhere, and it would connect to your power supply with sata or 4 pin molex power. If your fans use oil-based bearings, adding a drop or two of lubricating oil can get them spinning freely again. The case should open when you press the power button and the fans should start spinning. The case came with the reset switch plugged into a weird 2 pin connector in order to change the fan colors with the reset button on the case. I know that when i plug them into the motherboard i can control the speed etc so i did that and the fans weren’t working. On aquasuite it would give the warning "Supply voltage not in range, fan output deactivated. The fan connected to Molex should be running full speed all the time, if not either fan or it's power connection is not good. No matter which connectors on the PSU I used, my 2 front fans and back exhaust fans would work fine but the top ones still would not spin. No spinning and no light. Advanced Troubleshooting. But if they're molex fans, they should go straight into your motherboard Reply reply Top 1% Rank by size . Once you have verified that it is secured and if this is Hey all! Recently started building a pc and when I went to boot ran into an issue- GPU fans not spinning and also no screen. Mobo = Z370 Gaming Carbon I hooked the 3 pin single cable to the CPU FAN rec per manual. They are not connected to my motherboard in any way. I just built a new gaming PC with an Nvidia RTX 2070 Super from EVGA and the fans are not spinning. I'm afraid to If it does NOT have ONE standard 4-pin female fan connector, tell us what it DOES have. there really aren't many\if any options for directly controlling the speed of molex fans. Here’s what to look at next: If I get this right your using 2 fans that have a motherboard fan connector and a Molex power connector. This might happen whenever the fans aren’t spinning but I’m not able to check at the moment. M1KI2309 New Member. Then I plugged them into the psu by If the Fans are not spinning on your case, or if the fans are not lighting up. Then re-plugged molex cables from that fan controller to power supply's cable - still nothing. Troubleshooting Just build a new PC and the case fans don't want to spin when connected to the motherboard. The red on white spinning circle on the fans continues even if the ARGB header is disconnected. Also, the LEDs should light up. both packs come with a splitter for argb and power. I was aware that this means no fan speed control, but they actually keep spinning after I shut down Windows or set it to sleep mode, which shouldn't be the case. It sounds exactly the same connected to the mobo or the fan mate2. I've tried it on two different headers and neither seemed to work. I'm very new to the "PC world" so I don't know what to do. Thread starter kav1257; Start date Oct 2, 2020; Toggle sidebar Toggle sidebar. But I feel like they are argb and my board only has an RGB header. If you’ve tried the above steps and your case fans still aren’t spinning, there may be a more serious problem. While at night we just finished playing csgo and all that stuff, when i took off my headset i noticed the fans are spinning slower than usual, i Molex fans don't have a fan curve setting as far as I can tell. More likely, it is connected to a motherboard header. Fans not spinning but still light up? Question Archived post. Never assume that the molex plugs on the fans are wired correctly. So this means my fan is working? Thankyou so much If your fans don't have these 2 different connections, it's probably that generic Chinese one with 6 pins. They are all RGB, and the lights still work for all of them (including the one that doesn't spin). 3 pin fans should work fine from 4 pin header but you That's the fan controller, try to power the fan controller via the power supply or motherboard whichever connection it supports. This is what I’ve tried so far: tested gpu on my main pc and it works perfectly fine, fans spin and displays and games fine the gpu light indicates it is also getting power via a blue light (it is an rx580). Thoughts? I have a problem with my Thermaltake CPU cooler fans. Question AIO pump fans not spinning. Fan hub does come with a cable that sticks into system fan on motherboard. Seems like the voltage is not enough to start to spin the fans. That board only controls the rgb of the fans. And they have molex and 3 pin motherboard connector. If I plug it into the PSU, the LED strips turn on (so pretty!) but the fans won't spin. Sep 6, 2020 18 2 515. for example using the 6 pin Pci-e-12v, if one is free. I have an LED case fan which is connected via molex to my PSU. Re: PSU FAN Not spinning 2016/12/04 19:21:04 Sounds dead to me. I just figured if the fans are not spinning nothing is happening. But for any reason, if the I forgot to mention that the machine wasn't even posting. I had experienced this issue before, however a quick disconnect/reconnect of the molex cables the fans may have a 3pin aRGB cable but they will also have a separate cable for motor control. You can also try and take out the CLC and have it powered by the molex adapter to your pump block while you've jumpered your PSU. If there is no other connector type, the fans may be DC, which means you cant control the speed. If I unplugged the power (4 pin molex) and restarted it, it would start again but it would lose all saved settings and I would have to reprogram it. . When I open the software it says "warning fan controller". CPU_OPT has fan hub cable attached. So I turned on my PSU and all my components were running flawlessly apart from my RGB fans, which were lit up, but were not spinning. I have an MSI meg x570 ace. I already checked the rgb fan header on the mobo but still not moving The white thing is a Molex connector. However, the case fans are not. However, when I turn the system on it spins for a fraction of a second and stops spinning. argb is fine, but power is not. I would connect one fan to a PSU cable, then see if they spin. The fans are using only the 12v line, no sense or PWM signal. 3 top fans are connected to a PWM splitter and then connected to hub with one 4 pin cable. One of the case fans for my PC stopped spinning. Everything is working great except all three of the RGB fans are not turning on at all. A fan motor is very simple, you I have 3 front fans connected directly to the power supply via molex cables, they are spinning very fast and making a noise quite annoying, I can not connect it to the board (Gigabyte H410M H V3) because I only have 2 4-pin inputs and they are occupied by the rear fan and the processor fan. No fans spinning, lights, no LED light on mobo, nothing working at all. kav1257 Prominent. I've tried aura sync and it detects the mobo and ram but no cpu or rgb fans. So, I just connect the fans directly to the PSU, and that works fine except that when I put the computer to sleep, the case fans continue to spin. It won't show up on mobo, and it will probably spin all the time. I have plugged in 18 fans on one molex before, just for fun . Normally you can control all fans, if not via the 4-pin header's PWM signal, then at least by supplying a lower DC voltage to it. Hi, Hooked up H115i last night and the LED on the logo came on but the fans aren't spinning. First time building a PC! I got everything hooked up, finally turn it on and everything's going smoothly, installed Windows etcand then I noticed my fans are not spinning. Reply reply These aren't addressable RGB fans, but ones wired to the case's controller. If it doesn't work, try with If your case fan is not spinning, the problem might be with anything from the fan itself to the motherboard, power supply unit, software, cables, connections, and so on. The two other fans still spin, and the CPU air cooler does as well. However, if you are gaming or carrying out GPU intensive tasks and find out your graphics card fans not working at all, then follow the possible solutions we’ve laid out in this guide to brings your GPU fans back to life. It May Be a Feature, Not a Bug If the GPU is not being used for intensive tasks or is not reaching high temperatures, the fans may be set to stop spinning to save energy and reduce noise. possible there are some very old hubs that could vary the power therefore adjusting the speed of molex fans but i'd guess it's unlikely you'd find one. :| That just suggests that they don't output a speed signal, or at least not a proper one. The case fans MOLEX connectors (male) can be difficult to push in to the PSU's female connectors. I'm also a little confused. Dec 25, 2013 3 0 10,510. Please first try each of the buttons on the remote control Skip to main content. One of the fans on my cooling system refuses to spin and just slowly turns forward around 10cm then reverses and goes back to where it was before. If your fans don't have these 2 different connections, it's probably that generic Chinese one with 6 pins. The splitter obtains power via a molex cable. Then it started not being able to get the fans going (I have 7 vardar fans hooked up to it). (2 fan power, 4 argb). Dec 25, 2013 #5 it's warmed up abit to 50. But it is now that I moved the RAM to slots 2 and 4. They all plug into a fan hub, which has a power cord coming out of the bottom. I had to swap the wires with the 12v pin out and now it's working Reply reply GPU fans not spinning after fresh install I have a Seasonic S12II 620W PSU that has a cable with 4 molex female connectors. Case Fans not spinning. r/iBUYPOWER PC case fans not spinning. Hey! I tried putting together a pc for my cousin and it is working but the fans are not spinning. Home. If your graphics card fans are not spinning while there is no workload on your card, then it is completely normal. microusb provided is plugged into jusb2 on my msi z390-a pro mother board. The system bios is not detecting anything and saying the fans are running 0rpm when they always running full speed. 3pin fan can be connected to 4pin header. Case - Phanteks Enthoo Evolv X Mobo - EVGA X570 FTW CPU - AMD Ryzen 9 5900X RAM - 32GB Trident Z Royal 3600MHz 14-14-14-34 GPU - EVGA RTX 3080 Ti FTW3 Ultra Gaming PSU - Seasonic Prime TX-1000 Heatkiller IV CPU Waterblock / Heatkiller V GPU Waterblock I have an RGB hub and there are 6 Fans RGB connected to it - I power it directly using a Molex connector from my Power Supply (No daisy chains, nothing else on that connection). New comments cannot be posted and votes cannot be cast. And the radiator fan is now spinning. I scavenged a little 90mm fan from an old Dell my parents had and I was trying to add it to my build for an extra outtake my case fans are hooked up to a controller, which is then only hooked up to the LED switch and a molex connector on my PSU. I reckon that the connections probably came loose when I was setting it up. Oct 2, 2020 #1 hi all, so my computer was working completely fine I Have not tried yet. This does not affect POST. I decided to do some troubleshooting and try all my fans in different connectors to see if there was a difference. Its connection is in the board and the fan hub. maxitaxi1990 Honorable. After dusting and spinning it manually, I tried using Gigabyte OC Guru II to start the fans, but as it turns out according to GPU-Z the fan speed % is actually changing but the RPM still stays at 0. 1 back exhaust fan is a 3 pin connected to the pwm hub. I felt relieved that I had finished my first-ever build. M. both sets of 3 fans have power connected to splitter, both splitters connected to a fan hub. Mind you, this is at idle and I wanted to test one of the few games I have downloaded which is "Human Fall Flat" so I loaded it up for a couple mins and it still wasn't spinning. I have tried on both Greetings. I don't want to have to get a fan controller or hook it up directly to the PSU so I feel like I just need to get the right cord. And I think it is safe to say my fan is not spinning +/-10% of 1500rpm's. Now the fans light up but they don't spin. from the back of the Psu, with a cable to molex click on link If it is connected directly to a molex connector on the PSU, it should run at full speed always. I've got the 4 fans connected to the hub, and the hub is connected to an ARGB header and Molex for power. If they're molex fans (for some reason), just use a molex connector, they'll run @100% regardless So I’ve recently bought new case fans. Almost like in pulses. I have this Cyberpower PC : CyberPowerPC - Gamer Master Gaming Desktop - AMD Ryzen 5 3600 - 8GB Memory - AMD Radeon RX 580 - 2TB HDD + 240GB SSD and have just gotten everything connected for my setup. Upvote 0 Downvote. All seems to be fine except the case fans have not come on once since powering up, they are aRGB fans spinning but not lighting up Troubleshooting I have a case with 4 aRGB fans, they have a 6pin connector which plugs into the case controller/hub, which is powered by a molex connector, when I turn the power on, the fans start spinning but they don't light up. Submit a request; Sign in Sign in Submit a request; Dr Memory (XUM Molex connector is plugged into a (M) PC case fans not spinning Troubleshooting Hello! As the title suggests - the fans of my computer case stopped working (CPU but nothing. Thread starter Jamma88; Start date 31 Mar I think that they were 3-pin, but came with molex converters, which I left on simply for extra length of cable. The fans have 2 cables coming off them, each with 2 connectors Cable 1: Molex and 4pin pwm header Cable 2: Addressable RGB male and female The hub connects via SATA off the PSU and has another female addressable RGB presumably to connect to another hub. Molex fan connectors look like this and must be connected directly to the power supply with or without a splitter, and do not have speed control. I tried directly connecting it to a 4-pin molex with a 3-pin fan connector but I don't notice any airflow or noise differences. If I open the case and give it a spin by hand, it will continue to spin for around 5 minutes before slowing down and stopping again. Only 5 fans turn on the RGB and 1 does not (Only RGB is connecting to the hub, not the fans itself, Fans spin fine they are connecting to the mobo) So, I bought a NZXT 820 Phantom case, and in almost every video, the people reviewing it, just plug in the molex connector and the SATA connector to their PSUs and it works. If you notice your GPU's fans aren't spinning, here's how to assess whether there's a real problem or not and then how to fix the problem. I assumed the motor had an issue, and picked up another fan, which didn't work either. Be careful not to get oil on the fan blades or motor housing. Thoughts? Motherboard is Asrock B560 Pro4. They all work, as far as spinning goes. My fan worked for 1 year really well and fast quiet now when I turn my pc on the led turns on but my fan doesn't move just a slight but doesn't spin completely then I open my case and I push it and it spins spins pretty fast but not as fast as it did I'm worried it's my psu because it's connected with a molex not chassis. As per fan there should be a molex connector and a small 4-pin connector that goes into your (when PC is on) carefully and check if all the fans are spinning or not Upvote 0 Downvote. PSU fan not spinning PSUs may have constantly-on fans or power-usage and/or heat-controlled fans. Do I have to plug the fans into my PSU to get them to work? About 2 hours ago, my whole PC shut down completely. The fan might even get damaged or blocked with dust and fuzz, which I tried directly connecting it to a 4-pin molex with a 3-pin fan connector but I don't notice any airflow or noise differences. If it's a molex connector, could be that one of the pins came loose, but you said that all the fans stopped spinning at the same time, so unless they are using a molex splitter, that isn't what happened. 3 Front fans are individually attached to the hub. More posts you may like r/iBUYPOWER. My CPU heatsink runs fine, and thankfully I had the or it is not receiving power from PSU? I suppose hub is powered by Molex or SATA plug connected to PSU. If you plug the CPU fan into SYS_FAN1 does it still work (don't run it long, as it's not going to adjust to CPU load, but a quick test is fine). Removed front panel to see if any cable has been cut loose - all was fine, and this was a dead end. Both should run the same speed is all I can say with the information provided. I noticed today that the PSU fan is not spinning in one of my computers. This is also the case when I disconnect and reconnect the molex cable. It seems like it cannot handle the amperage load from more than one fan spinning on high, or more than four spinning on low. If so, I’m not sure if it’s the problem or just a symptom. Motherboard is Asrock B560 Pro4. both sets of argb connectors connceted to both argb splitters, both splitter connected to each argb controller. Share Sort and that can only be plugged into the power supply 'molex' (I think that's right) cable. I will probably solder the fan taking power from 12v molex, ofcourse it While at night we just finished playing csgo and all that stuff, when i took off my headset i noticed the fans are spinning slower than usual, i Molex fans don't have a fan curve setting as far as I can tell. If the fans otherwise have only molex connectors and the RGB is hardwired into the controller and you're not getting RGB when you're hitting the button, it might just be defective. I hooked up the 3 and 4 pin tied to each other to the fans that came with it, sata cable to sata receiver etc and t I had this issue but my fans were connected straight to the PSU, not the motherboard. A 3-pin fan plugged into the motherboard can be voltage-controlled, CPU_Fan has cpu cooler fans attached. I checked my PC while it was running, and discovered that my GPU, as well as my case fans, weren’t spinning at all. After connecting some fans with a fan port and connecting it to the "main" cable, my circuit was completed. Plugging one fan into the motherboard and the other into the Molex on the connected fan. I was not able to boot up at all. controller is connect at 2 places to sata cable which is plugged into psu. I am trying to control them with the ASUS Armoury Crate aura sync software. If you can accomplish this and the fan still will not start normally, the fan is bad. It sounds exactly the same connected to the mobo or So I’ve recently bought new case fans. My cpu fan and gpu fan is already spinning and it show display on my monitor, but my case fan wont spin but it lights are on. I have rgb fans, connected all up through the molex connectors but none of the rgb works. Troubleshooting I bought the DIYPC ARGB Q3 case and it came with 3 molex rgb fans. When I boot up my computer it spins for about 1 second then stops. I brought a Z370 MB and a Rosewill. Conclusion. Your case fans will all be connected into a hub that has an internal power cable that will connect to your power supply (4-pin molex). So some reason there is still 12V just after shut down. I do have a connector where I can plug the molex into it, then plug the connector into the MB. The issue is, fans try to start to spin moving like 10 degrees, and then return to same position. They were all plugged into a single 4-pin connector on the mobo and I've now moved them to a molex connector from the PSU, but they still aren't spinning. So I have these old molex case fans installed, and they're connected directly into the PSU's molex connector. I thought maybe one of the cables became loose or disconnected so I took off the side panel, checked all of the connections (Unplugged it all and plugged it back in), I followed all of the fan cables and found where they all plug in but they still don't want to turn on. Cooling . But that's me. Joined my case fans aren't spinning, they are lighting up but thats it, my cpu fan works perfectly My motherboard is a Asus TUF B460M plus I have a molex to 4-pin that I tried connecting to the Sys_Fan2 but the fans still wouldn't come on. Hi everyone, I recently noticed that my case fan had stopped spinning despite the RGB working properly, even under heavy load(eg training ML models or playing titles like Assetto Corsa). Not sure how customer service would work with this company. All your fans probably have a molex connector and are supposed to be daisy chained in order to spin. Then they try again, and the same thing. If any of your computer’s case fans are not spinning then don’t panic, it’s a common problem most PC users face. If you think it’s important to confirm I can do so. mother Taking care to plug the 3 pin pump header to your CPU fan header and the fans in their corresponding positions on your CLC/pump block while the power to your pump block is fed through the molex power port. myxn eqhlfg vkl idxmr qdany fffmd pmse wuv sgfdj pbsp