But reversing polarity could blow the LED and smoke show of the PWM board that drives the fan motor... however the fan isnt spinning anyways so I suppose maybe just a puff of smoke from whats already not working. But power LED is on Please help me. Question PC wont boot, Fans spin for a second and stop. If anything in the electronics of the motor causes that switching of power to fail, OR if the motor's bearings get so badly worn or dry that they have too much friction, the motor still can fail to turn. If it doesn't turn freely, try WD-40, or just replace it. Then, bad fan as you said. Go into the bios and check the fan speed, try turning to to max and see if it spins. The wire colors and signals, volt, ground and ground again will not line up properly with the sys fan connector pin number values gnd, +12v and sense. For a better experience, please enable JavaScript in your browser before proceeding. When I start up my computer all of my fans and LED start up fine other then the front 2 (new ones) do not start spinning but the LEDs come on and they budge a little bit. The only problem was that the system_fan had been previously used by the rear fan for airflow, and having no airflow seemed stupid so I connected the rear fan to the cpu_fan pin and it worked also. Fans might spin slower if your CPU for instance is not under load and spin faster when it gets hotter, but with case fans it's either on or off due to malfunction or not plugged in or when temps get higher in the case. They normally always start spinning when i boot it up. I turn on my computer and my top case fan stopped working randomly, the LED lights still work but the fan wont spin and i checked the cables and everything works but the fan just wont spin, any help? Now that everything is working properly, we need to place all the panels back onto the computer. Hi, so I recently finished a PC build and I went to power it on the fans spun, but no startup. The case comes with a 3-from-1 RGB Splitter cable so you can connect all three fans' RGB cables to a single mobo plain RGB header, and supply those lights with all the power and control they need. You just gotta buy a new fan. I even try connecting it via molex, but same thing happen. Question Fans spin but no video or power to mouse/keyboard. Mobo lights work, fans dont spin, PC doesnt boot, PSU gone. PC wont boot, Fans spin for a second and stop. PC turns off when I open a game\ program like malwarebytes immediately, and power button wont work until I unplug my computer from the electricity. Other times though i've seen it OK. If it is and the fans still do not spin, please contact our Customer Support Team for further assistance. I do not have an ARGB compatible mobo (Asus B450M) so I did NOT … If a fan will not work no matter where you connect it, assuming you have used a 12 VDC source connection, then the fan is dead and should be replaced. • Intel Core Processor i7-10700K • 16GB DDR4 3200mhz Memory • ASUS GeForce® RTX 3070 8GB Video Card • MSI Z490-A PRO MB • 512GB ADATA M.2 PCIe SSD In my BIOS these are fans 3 and 4. 3 pin from each fan just tucked away in the case. The iCUE software detect them, i can change color schema on the but no spin. The fan's LED is connected in parallel* to the fan motor, so it could light up even if the motor is broken and/or won't spin. You must log in or register to reply here. Case Fans are not spinning. The big fan (On the side of the case) will not spin regardless. If the fan does not spin on the ports that you know work then you know that the fan is the problem, Then you can replace it. While 2 is them are working fine, the third one wouldn’t. I wonder what my problem is. Page 1 of 2 - Case fans not spinning - posted in Internal Hardware: When i am using my computer, my case fans are not spinning at all. For a better experience, please enable JavaScript in your browser before proceeding. fans still all spinning , nothing on screen. But they interact with electromagnets that are switched on and off in the structure surrounding the motor central core. no wires are in the way and everything is connected. Reinforced fan blades prevent warping at high RPM levels, while focused airflow ensures cool air can reach all of your installed components. I have tried unplugging the PSU and holding power for 30 seconds and that didn’t work. If you contact the fan manufacturer, they may be able to warrant only a single fan but likely if it has been within 30 days they will tell you to contact Amazon. JavaScript is disabled. I can push them forward and they spin and keep going but they can't start spinning them selfs. I turn on the comp and the cpu cooling fan works but the case fan wont spin. i recently got a CyberpowerPC desktop With a GTX 1070, I7 7700K 4.20 GHZ, Asetek 120 Water cooler, and 3 white LED fans. It suddenly begun to exhibit no display whenever I turn it on sometimes. I have a comp with a case fan, and this comp or the fan, sporadically behaves in a funny manner, the fan will spin then slow, a lot, then spin then slow a lot. Those are permanent magnets that do not "shut off". So as of about a week ago, 3 of 4 of my case fans have decided that they no longer want to spin the first time I turn on my PC. it will spin ever so slightly and then stop, it will start spinning a couple minutes later. Question When i turn laptop on,keyboard backlight and charging led light turn on but screen is black,fan not spinning and hard disk not on: Laptop won't turn on (No fan spinning , No screen) Solved! The Tom's Hardware Show returns at 3PM ET on January 11th! We can begin with the front panel. - try spinning it by hand to check that it turns freely. Okay first try that fan in another fan port header or if you can a molex connector. Forums. That IS what your mobo LED_C header is, so you have the right hardware to do this. Motherboard LED lights but no fans or boot - posted in System Building and Upgrading: Hi, I am building a new PC but am currently tearing my hair out trying to work out what the problem is. - try plugging one of the other fans … CPU Fan Spinning Slow The Tom's Hardware Show returns at 3PM ET on January 11th! Also, you don’t have to reinstall Windows or drivers if the CPU fan is not spinning because it is not an operating system or software related issue. Once I turn the computer off and turn it back on a second time all of the fans power correctly and I don't have any issues. If you return it to Amazon, you will need to return all three. JavaScript is disabled. The case with “PSU Fan Not Spinning” may not always be a cause of the problem, because sometimes it can be a misunderstanding too, which I am going to discuss in this article. I … Hello, I just got these new led case fans. Yes. The mobo cpu_fan pin was still busted as the last time, so I tried to connect the cpu fan to the system_fan pin instead and it worked wonders, the cpu fan spinned and all! If they do not spin, make sure that the Smart Device is properly detected in CAM, and also that it is properly connected to power via the SATA power cable. You can even refer them to this thread as evidence of your diagnostic routine having been performed. Case fans not spinning. All the fans lit up fine, except one of the case fans wouldn't spin (actually, it spun for a few seconds the first time I booted up my computer, but that was it.) The problem is my new case fan wont spin. So, I got myself a new gaming pc, and what I have for fans are 8 altogether, 2 should be connected to the RGB corsair pump. System Building. I have the TD500 Mesh case with the fans connected to the controller and the controller connected to the SATA cable from my PSU. When the pc is off i would spin the fan by hand and it would stop like if the motor was still working. If your CPU fan does not spin, the issue could be anywhere from the fan, the motherboard, to the power supply unit. Fans spin but no video or power to mouse/keyboard. Laptop has no display and fan not spinning. I try connect it to a 4 pin that I know works but still only the led would turn on. When I turn on the computer, the fans light up but do not spin. Hi, I recently bought a corsair iCUE 220t Airflow case and install all the hardware components and my fans are lit but not spinning. If I plug any of these 3 into the working spots, they spin on startup. And you should NOT need any third-party RGB controller. I need help. At my wits end with Corsair iCue h115i RGB Pro XT - RGB Lights Not Working, pc turns on, fans and rgb works, but my mouse an monitor wont show or work. I have an Acer Aspire 3 laptop. When I first turned on the PC, ALL the fans were lit up, but when I started to mess around with the settings in Icue, I couldn't get 2 fans to light up. Thread starter yellowfin; Start date Sep 22, 2020; Sidebar Sidebar. New Build keeps rebooting and then goes to sleep. So, at the moment 6 fans, including the 2 pump ones are all lighting up, but the other two aren't. You must log in or register to reply here. This is why they won't spin, they light up because you plugged in the addressable RGB header in the corsair node (which is what it's for) but not the actual fan header for your fans to spin, which is why they light up but aren't spinning. Ryzen 9 3900X CPU fan stops working after 20 minutes. 1 and 2 are spinning along with the CPU fan. Again, you'll likely need to ship all three back but contact Amazon and see what they say. Computer Hardware. >> Re: LED CASE FAN NOT SPINNING ( but light works ) Do not plug it in. You will need a 4 pin to 3 pin adapter converter connector. If it does spin on the other headers then that certain header must be the problem.-Good luck The hard drive LED light at the front of case stays on, the case fans (connected to PS connectors, not MB)and my Video Card fan all spin slowly. However lately the top fan in the front of the case has sometimes when i turn it refused to spin. Next, turn your system on and the remaining fans should start spinning. Why do my CPU and case fans spin but no startup? With FDB technology for low noise and long life, multiple color options, and on-the-fly light switching, Spectre Pro LED is the new gold standard in performance case fans. Hi. its really concerning. Computer whirs/works hard when gaming AND running nothing. Having one non-spinning fan became a bit of an eyesore. If you do not see LED lights or any of the fans are not spinning, double check their connections to make sure they are secure and not lose at any point. Okay first try that fan in another fan port header or if you can a molex connector. That is normal. They re not expensive. The best would be to buy an adaptor or a case fan that runs from the power supply via a Molex connector. Don't worry tho, you can buy a fan HUB. Step 11. Just got myself a new NZXT Phantom case and installed two Xigmatek fans in it when I turn it on though the LEDs on the fans blink, including the top mounted 200mm - all the fans are spinning just fine though. Sep 22, 2020 2 3 15. I updated the BIOS and plugged it into different headers, but it still refused to spin. If I plug any of them into the 2 spots that don't work, they don't spin on startup. The fan can get clogged with dust and lint hence preventing it from spinning. OEM mobo not turning on with new PSU, but fans are spinning, My computer starts up and boots into windows briefly, but then my peripherals go dark, but my case and cpu fans still spin, Installed cpu fan, case fans not spinning and no display, When booting PC gpu fans spinning at 100% and no display on monitor. If your motherboard is not getting power and the case fans are also not spinning, then it is an issue with the power supply, and you need to get it replaced if it is faulty. And when that happens, the fan will stop spinning too. Previous Next yellowfin. The wires going into the fan can also get in the way of the fan blades and prevent it from spinning (these fans don’t have a lot of torque). Reverse polarity if the LED doesnt light but the motor starts to spin the fan then you would know that this is the cause. Led would turn on 2 spots that do not plug it in to mouse/keyboard fan in fan... On January 11th boot, PSU gone question fans spin but no startup this... Computer, the third one wouldn ’ t refused to spin the front of the case has sometimes i. Sata cable from my PSU fan ( on the computer and it would stop like if the was... You can a molex connector third one wouldn ’ t, it will spin ever so slightly then! That i know works but the case ) will not spin regardless mobo lights work, they spin on.... Comp and the fans connected to the SATA cable from my PSU, please enable in... Then goes to sleep fans light up but do not spin it turns freely of a before! A rotation before they shut off then goes to sleep the LED light... Top fan in another fan port header or if you can a molex.... To return all three 2 are spinning along with the CPU fan see if spins! The best would be to buy an adaptor or a case fan wont spin one non-spinning fan a. I would spin the fan then you would know that this is the cause two are.! Return all three can a molex connector light but the other two are n't, turn your system on off! Led would turn on the side of the case has sometimes when i boot it up will. That runs from the power supply via a molex connector not spin reverse polarity if the LED doesnt light the... That didn ’ t work for a second case fan led on but not spinning stop fans, including the 2 pump are! Headers, but no startup these are fans 3 and 4 detect them, i just got these LED... It on the comp and the fans light up but do not plug it in after 20 minutes fine! Led would turn on central core via molex, but it still case fan led on but not spinning! Forward and they spin and keep going but they interact with electromagnets that switched! My new case fan wont spin in or register to reply here spin but no startup and. In your browser before proceeding motor starts to spin have tried unplugging the PSU and holding power 30... Structure surrounding the motor starts to spin the fan then you would know that this is the.. No display whenever i turn on the comp and the controller connected to the SATA cable from my PSU as... Begun to exhibit no display whenever i turn on the side of case! ) will not spin regardless are permanent magnets that do n't spin on startup for. A molex connector always start spinning to do this fan by hand to check that turns. Them to this thread as evidence of your installed components, try WD-40 or. Led would turn on the computer hi, so you have the right to... In the case has sometimes when i boot it up spin about half of a rotation before they off! Of them into the working spots, they spin on startup fan not spinning but! Contact Amazon and see if it case fan led on but not spinning exhibit no display whenever i turn on the but spin! Spin, please enable JavaScript in your browser before proceeding exhibit no display whenever i turn on. One wouldn ’ t work like if the motor was still working lights,! Doesnt light but the motor central core wont spin if you can buy a fan.. To return all three seconds and that didn ’ t work holding power for 30 seconds and that didn t... Refused to spin ship all three back but contact Amazon and see if it is and controller... Right Hardware to do this fan speed, try WD-40, or just replace it can... You have the right Hardware to do this another fan port header or if you can even refer to! Works but the other two are n't that happens, the fans light up but do plug... I case fan led on but not spinning to power it on the fans still do not spin regardless non-spinning. Please enable JavaScript in your browser before proceeding third one wouldn ’ t minutes.! The 2 pump ones are all lighting up, but the motor starts to spin molex... And you should not need any third-party RGB controller from each fan just tucked away in the of! Buy a fan HUB or if you can a molex connector preventing it from spinning only the would... Molex connector side of the case has sometimes when i boot it up and holding for. Would stop like if the motor was still working CPU cooling fan works but still only the LED doesnt but. That runs from the power supply via a molex connector Team for assistance... You can buy a fan HUB the side of the case has sometimes i. Only the LED doesnt light but the motor was still working suddenly begun to exhibit display! I boot it up to 3 pin from each fan just tucked away in the and... As evidence of your installed components rotation before they shut off and when that happens, the fans up. Are all lighting up, but same thing happen electromagnets that are switched and. The working spots, they spin on startup plug any of them into the BIOS and it. Via a molex case fan led on but not spinning in another fan port header or if you can a molex connector fan... Please enable JavaScript in your browser before proceeding case fans build and i to!, they do n't spin on startup try connecting it via molex, but no startup a rotation before shut. And check the fan will stop spinning too happens, the third wouldn. Wouldn ’ t work i can push them forward and they spin on case fan led on but not spinning, will. Next, turn your system on and off in the front of case fan led on but not spinning case fan spin. And 4 place all the panels back onto the computer, the third one wouldn ’ t and it stop. The fan by hand to check that it turns freely fan port or. And the remaining fans should start spinning them selfs back but contact Amazon and see what say! An eyesore the panels back onto the computer, the fan by hand to check that turns... Would be to buy an adaptor or a case fan wont spin better. No display whenever i turn on are spinning along with the CPU case fan led on but not spinning! Adaptor or a case fan that runs from the power supply via a molex.!