Various causes can make your CPU fan to stop spinning, and most of the causes are related to a hardware fault only. Cleaning the fans is easy and is one of the first things you should do. I put them back in, booted up, and every time it boots I get 511-CPU Fan Not Detected and 512 Chassis Fan Not Detected. Know your PSU Specs, Best M.2 PCIe Adapters for NVMe or PCIe SSDs in 2021, Best RTX 3060 Ti Cards for 1440p Gaming [Custom AIB Models], RX 6900 XT vs RTX 3090 vs RX 6800 XT Comparison & Benchmarks, RTX 3060 Ti vs RTX 2080 SUPER vs RX 5700 XT Comparison & Benchmarks, RX 6800 vs RTX 3070 Comparison and Benchmarks. Below are the various causes and solutions for the ‘CPU Fan not Spinning’ problem. Both working, spinning, the desktop does not appear to be hot at all to the touch. If your fan is faulty, then the only solution is to replace it with a similar fan or with the fan that is optimized for static pressure and spins at the same or higher speed compared to the older CPU Fan. It's weird, because the CPU is currently reading 29C and the fan is physically spinning. This software will repair common computer errors, protect you from file loss, malware, hardware failure and optimize your PC for maximum performance. 1. The caveat here is that you'll have monitor the fan yourself in … The first thing to check is whether the 4-pin CPU Fan connector is inserted properly in the 4-pin CPU header, and there are no loose wires either on the connector or the fan side. When the fan starts emitting a rattling sound, there is a good chance that the fan is about to fail. I noticed that the rear exhaust fan right next to the PSU was not spinning. New York Mets legend Tom Seaver dies at 75. I checked to see if it was plugged in correctly and I changed the wire from SYS_FAN1 to SYS_FAN2 and it still would not work. I can see my cpu fan spinning but when I check in the BIOS or Easytune5 it doesn't show any RPM reading. Both desktop and laptop need CPU fan in order to keep the normal running of computer. Then I have to press F-1 to ciontinue the boot. Yet I still get an alert: cpu fan not detected when I boot up. If you have queries regarding this problem or want some guidance, then you can ask your question in the comment section below. 13 years ago In reply to CPU fan not spinning it is by no means unusual for the CPU fans to die, especially if it is dusty. The motherboard is a GIGABYTE GA-970A-UD3P. The main CPU fan header on the motherboard is marked as CPU_FAN, and the extra fan header is generally marked as CPU_FAN2 or CPU_OPT. One common problem that first-time builders can run into is that, after building their system and turning it on for the first time, they find that their graphics card fan(s) isn’t spinning. I must have been in the BIOS a dozen times and did not recognize it. I had massive FPS drops and then saw on predator sense that my GPU heat was sitting around 90 degrees... and then my CPU fan stopped working too lol. In some cases, overheating can also lead to serious damage to your CPU. in Computer Science & Engineering. The fan cooling the CPU can only be detected and controlled by the mobo if it is plugged into the CPU_FAN header. You can check a bad CPU fan header by inserting the CPU fan in another fan header, and if it is working, then most likely you have a faulty CPU fan header. The fan is spinning. A jammed or faulty bearing due to dust and debris can also cause your CPU fan to stop spinning. In many cases if you are using a liquid-cooled CPU cooler system it is done differently, and then you need to follow that system's instructions. Then in the same night I noticed my fan wasn't spinning for who knows how long when I was gaming. At this point, if your fan spins like this you would need to replace the entire unit. Below you can see the CPU Fan Speed of one of my computers using HWMonitor and HWiNFO software. Notify me by email when the comment gets approved. This can be incredibly frustrating and could signal that there is a potential problem. I am using windows 10. If you have an entry-level or budget category motherboard, then in most cases, it will only have a single CPU fan header, and if it is not working, then it is better to replace the motherboard, especially if it is under warranty. (I'm using the mobos HDMI port). The resetting of your desktop is due to Explorer.exe crashing. Sent from my iPhone using Tapatalk 11-25-2017 01:25 AM #4. Please log in again. If the pc powers up and does not spontaneously shut down after a whilke, the CPU fan must be spinning... BjornEricsson. He has a special liking for graphics cards and is a passionate PC gamer. What CPU Cooler are you using? I have done M.Tech in IT and B.E. A cooling fan draws heats from the CPU and the other components and releases them out from the Air vents. Double check. The specialist will also check if you have any wires that are preventing the fan from spinning. Your GPU temperature is fine but your CPU temperature is very high. I tried to plug it in OPT-FAN and it worked just fine. We hope this article has helped you out. While I still believe it is due to a motherboard faiure in the fan control circuit, I learned there is indeed a BIOS setting that will bypass it. Obviously I checked the back of the desktop and 2 fans are visible. Clean the CPU fan. Are you absolutely sure that the CPU fan is plugged into the receptacle on the motherboard that is marked CPU Fan? This message just seemed to appear. Small towns see rents increase amid city exodus. This solution usually works if your computer is already making beeping noises or shuts down suddenly. (I'm using the mobos HDMI port). This is the order of things from Monitor to Motherboard: Monitor > Cable > Port on Computer > which is either connected to a Graphics Card in a slot on the Motherboard or to Onboard Graphics Hardware which is part of the Motherboard. your mobo has 6 fan connectors, so its probably not difficult to accidently not use the designated one. The fan came with my case. The fan can get clogged with dust and lint hence preventing it from spinning. Note: All CPU fans come with a 4-pin PWM connector, so make sure that the fan you are getting has a PWM connector only. The color coding of fan wires is, I believe universal. I had massive FPS drops and then saw on predator sense that my GPU heat was sitting around 90 degrees... and then my CPU fan stopped working too lol. 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. Fix CPU Fan Not Spinning [Top Causes & Solutions], Best Static Pressure Fans for CPU Heatsink & Radiators, Quick Guide on Overclocking Graphics Card, PSU Fan Not Spinning? Then in the same night I noticed my fan wasn't spinning for who knows how long when I was gaming. So, here I am going to list the various causes of the ‘CPU Fan not Spinning’ problem and also provide you the solutions to fix it. If you meet problems in your Windows computer, restarting computer sometimes always wins this battle. specs: Thermalright Ultra 120 Extreme using Arctic Cooling 120mm fan Gigabyte P35-DS4 PC issues and remove viruses now in 3 easy steps: On some occasions, your PC boots normally, but the CPU cooling system doesn't start. I have installed a new cpu fan and shroud. System: Windows 10 Home Battery or AC: Model: ROG Strix G512Li Frequency of occurrence: Everyday since 3/1/2021 Reset OS: Screenshot or video: Check the fan wire thoroughly along the length and on the connector and the fan side, where it is soldered to a smaller PCB. The GPU fan not spinning is a frustrating experience and the problem can arise due to different reasons. What i am wondering is if the motherboard would be the problem. Reboot your computer. A faulty or broken fan wire is another cause of this CPU Fan Not Spinning problem. Fix A faulty or broken fan wire is another cause of this CPU Fan Not Spinning problem. Here, you can clean the fan using compressed air can and can also lubricate them with a tiny amount of sewing machine oil. If the fan header is fitted and soldered properly and then also it is not getting voltage, then there are a couple of things that you can do. My specs are: So i went in to the bios and i noticed all other case fans are working and outputting RPMs. 1. I pulled out the GPU and it booted and registered the ram, but it was interrupting the boot and saying that I was getting a "CPU fan error". When i opened up the case i found out that the cpu fan is not spinning. If this does not work, the only thing left to do is to replace the motherboard. im guessing you might have connected your cpu fan into one of the case fan slots on the motherboard, so that the actual cpu fan slot is still empty on the motherboard, and therefore it is screaming that you dont have a cpu fan connected. I am a PC Gamer and a Hardware Enthusiast. However, the CPU fan in not outputting anything it just says N/A.. If you don’t know what motherboard to buy, check out the latest recommendations we’ve picked out. System: Windows 10 Home Battery or AC: Model: ROG Strix G512Li Frequency of occurrence: Everyday since 3/1/2021 Reset OS: Screenshot or video: Historic college will not open for first time in 384 years. Yellow = Tachometer 4. At start up, I get a screen with the alert:CPU fan not detected. Obviously I checked the back of the desktop and 2 fans are visible. Look inside to make sure the fan is spinning and is not making noise. Blue = PWM (pulse width modulation) The processor & auxiliary fan speed Press F10 to save changes and exit. Your fan may be running, but not at full speed which it may require. You can click Start -> Power -> Restart to reboot your computer, and check if the CPU fan spins after a reboot. If you meet problems in your Windows computer, restarting computer sometimes always wins this battle. So before replacing your motherboard or CPU, try replacing your power supply first. I have used Latitude D510s before and have had a dual-core Gateway laptop which did not constantly spin the CPU fan (the cpu fans where inaudible for the majority of normal use). It may be your power supply since it may be providing some of the different voltages but not others so the fan spins, some other LED's light, but it does not start. Thank you for supporting the work I put into this site!). I know changing the fan monitor setting to ‘Ignore’ lets me run the PC but it doesn’t solve the actual problem. I made sure to properly seat the GPU in the PCI-E slot, and use a 6+2 Pin to power it. If i press the power button, the lights will come on and there will be no response from the monitor. I get the 511 cpu fan not detected and press F1, yet when the computer boots up, the fan is running. im guessing you might have connected your cpu fan into one of the case fan slots on the motherboard, so that the actual cpu fan slot is still empty on the motherboard, and therefore it is screaming that you dont have a cpu fan connected. Causes might include dust in the fan or issues with the motherboard, as explained below. 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). Also, the main role of the CPU fan is to optimizing the CPU temperature. I checked the fan and it is spinning as usual, so i unplugged the cable for the fan and reconnected it.. but no detection in the bios. And I have to press F1 to Boot, and after that the PC runs smoothly no problems but once its on to long, it shuts off and blinks with a red light. Hello, Two weeks ago, my GPU fan was always spinning (I don't have a screenshot but I remember from PredatorSense that it was min 1800 RPM and average 2200-2500 RPM) and making a louder noise than the CPU fan, even if I was doing only simple tasks like Internet browsing or working on Excel. The specialist will also check if you have any wires that are preventing the fan from spinning. After a few months, I took off the side panel to watch the fan. Above, you can see that the CPU fan is spinning at 900 to 1000 RPM at a moderate load. Tip 1. Find out Why & How to Fix it [Solved], Best Graphics Card Buying Guide with Top Tips for 2021, Fix Hard Drive Overheating for PC & Laptop [Lower HDD Temperature], How to Increase FPS or Frame Rate in Games, How to Find VRM & Motherboard Chipset Temperature [All Methods], GPU Fan Replacement Guide & How to Find Right Graphics Card Fan, What Power Supply do I have in my PC? Is this true? Checked my fans and they were spinning fine, went to UEFI BIOS and only 1 of the 4 fans were detected, the rest said ‘N/A’. If your CPU fan is not spinning to its full potential, then it is also a matter of great concern as it will cause your CPU to run hotter and may lead to serious thermal throttling, which can lead to serious performances loss. 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). If your CPU fan stops spinning suddenly or is not spinning properly after a BIOS update, then you have to revert to older BIOS because it is an issue with the new BIOS itself. Are you absolutely sure that the CPU fan is plugged into the receptacle on the motherboard that is marked CPU Fan? Hello sir my cpu and GPU temperature is going to 70 to 78 but some time CPU goes to 80 is it good temperature and plzz tell me the dangerous temp of CPU and GPU I have stock CPU cooler, I have i5 4590 4th gen 8gb ram gtx 1050 500gb hdd. When I boot the boot stopps and a noter states CPU fan not detected. CDC predicts release date for COVID-19 vaccine. Red = + 12 Volts 3. 511-CPU fan not detected but fan runs at Max speed continuously - posted in Internal Hardware: I recently bought this HP ProDesk mini desktop … Yet I still get an alert: cpu fan not detected when I boot up. Commented: 2006-11-26. However, a higher RPM generates more noise, so you may have to compromise quietness with better performance. After logging in you can close it and return to this page. I love Graphics Cards and I have been digging them since GeForce 3 series. If the PC suddenly stops after booting, is an outcome of your processor fan not working. Also, I did not open up the case at all, changed any hardware, or dropped it. ‘CPU Fan not Spinning’ is one of the worst problems that you can face in your computer. The fan came with the cpu, the cpu is an AMD fx 6300. If you have not made a backup of the original BIOS, then you can find the older BIOS file on your motherboard’s manufacturer website. CPU fan spinning slow, no display, no power on mouse and keyboar [Closed] Report. If you haven’t replaced your CPU or motherboard before, always ask for a specialist’s help because this is not a simple fix to do by yourself. The OS is windows 10. I suggest you getting a good budget cooler like Cooler Master Hyper 212 LED. Not sure if the two events are related. Not knowing how to properly do it could bring irreparable damage to your CPU and computer. Press F10 to save changes and exit. Even if you make it work again, a fan with jammed or damaged bearing will not perform at its full potential and will again pose a serious problem after some time. You can click Start -> Power -> Restart to reboot your computer, and check if the CPU fan spins after a reboot. In this case, first, the CPU will underperform because of thermal throttling, and when the temperature of the CPU goes above the rated junction temperature, then your PC will shut down automatically to save the CPU from any damage. If nothing works, you should definitely consider replacing your fan. My specs are: If your CPU fan does not spin, the issue could be anywhere from the fan, the motherboard, to the power supply unit. 511-CPU fan not detected but fan runs at Max speed continuously - posted in Internal Hardware: I recently bought this HP ProDesk mini desktop … However, in case of worn out bearings, you have to replace the fans with newer ones as they are not repairable. I am working on a Dell Dimension 2300. Upon rebooting the ‘CPU Fan Error’ message appeared with ‘Press F1’. You may also want to reset the BIOS to its default settings by taking out the CMOS battery for few minutes and then putting it back again on the motherboard. WARNING: Make sure nothing enters inside the computer case while it is operating. Once on the Monitor tab, set the CPU Fan Speed from N/A (Not available) to IGNORE. Here the fan speed is around 56% to 60% of the maximum speed of my CPU heatsink fan, which is 1600 RPM. View Profile View Forum Posts Private Message ROG Enthusiast Array. I have installed a new cpu fan and shroud. Although, now my R9 380 would not get detected by either Device manager or the AMD driver installation. At start up, I get a screen with the alert:CPU fan not detected. Press F1 to boot. As you might have guessed by now, if your power supply does not work, your fan will not spin. If your CPU fan does not spin, the issue could be anywhere from the fan, the motherboard, to the power supply unit. If your fan fails to spin at high load then your GPU and even VRAM & VRM will overheat and can throttle down to lower speeds or frequencies card, and in extreme cases, the card can shut down to prevent itself from any … However, if I turn my computer off and back on it's most likely that the fan won't turn on again. Gman257. I tried unplugging it and plugging it back in and it's been rebooted a couple times. I am using stock cooler comes with a processor. CPU Fan Not Working-CPU Fan Not Spinning (Solved) February 7, 2018 By Jon Stewart Leave a Comment. Do not perform this step while children or pets are nearby. For example in my BIOS the CPU fan speed goes from 0% duty to 100% duty. The solutions are: If the fan isn't spinning: Replace it. Either make the fan run at full speed all the time or set the minimum speed in BIOS higher. C.P.U fan not detected while booting When I turn on my desktop, it says cpu fan not detected & at the bottom of screen "F1 boot" button appears after pressing that i can log on , I have got windows xp on my computer . The noise isn't very loud and it is not constantly spinning and maximum RPM - it is just a constant humming and after a while it is a little like water-torture! You can check whether the fan is faulty or not by inserting it into another CPU fan header or even the chassis system fan header (SYS_FAN). Try asking for a specialist’s help, as this is a very high precision task. These extra fan headers are generally found in mid-level to high-end motherboards. Clean the CPU fan. CPU Fan Not Working Desktop / Laptop. The fan is a 120mm and I read somewhere else that due to its low speed it doesn't get detected by the mobo. Your CPU fan serves the purpose of cooling the machine by spinning quietly in the background. The fan connected to the Chassis 1 header is working fine and is detected by the fan Xpert software. Double check. I went through a period of not using it at all for about of week and then the fan was working again. Tip 1. This thread is locked. Understanding this, means that it may not be overheating (especially if you wait a while before trying to start it again), but you do have a problem with the computer. This message just seemed to appear. Fan speed lower limit was set to 200 RPM so we change this to ignore. At first it was not spinning at all and it was not detected by BIOS. Faulty / Jammed Bearing. Sometimes the case lights even flicker. It would be appreciated if anyone could help. My cpu fan problem was a little different. '511-CPU fan not detected' problem 2 years ago I have an HP Pavilion and when I start the thing, it gives me "511-CPU Fan not detected, press F1 to boot" message. Why do I keep getting this when I turn on my desk top? Thanks, Landon Specs: OS: Windows 10 Home 64-bit CPU: AMD A6-7400k Clean the Fan, Air Vent and the Thermal Paste If you notice that the Cooling fan is spinning faster and louder than normal then there maybe dust and other particles clogged inside which makes them function less efficient. Recently its been crashing. gpu fan spinning but no signal, As you do not get anything on your Screen at all, it would appear to be a Hardware problem. While at 0% the fan shuts off. A faulty fan header is one of the most serious cases of the ‘CPU Fan Not Spinning,’ problem. So, as you can see, this is a major issue that you need to address as soon as possible. GIGABYTE GA-78LMT-S2PT rev 4.1 Motherboard AMD AM3+ FX-4300 4 GHz FX-Series Four-Core Processor 4 GB DDR3 RAM Corsaire 450 Watt PSU Transcend 1 TB HD after assembled CPU fan working, all lights start, but monitor LED on and blinking and not a single beep heard. Did so and it did. Although, now my R9 380 would not get detected by either Device manager or the AMD driver installation. Connect any of your fans to CPU FAN,check if it is spinning.I think your pump is dead if no rpms are reported and you had 85-100 Celsius. If the fan is not working or is making a loud noise, the fan … A jammed or faulty bearing due to dust and debris can also cause your CPU fan to stop spinning. Check the fan wire thoroughly along the length and on the connector and the fan side, where it is soldered to a smaller PCB. If it is due to bad soldering, then you can solder it back if you have done soldering before and are not a stranger to it. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. Both working, spinning, the desktop does not appear to be hot at all to the touch. I am working on a Dell Dimension 2300. If your CPU fan is not spinning, then it is a matter of serious concern because if your CPU heatsink fan suddenly stops spinning, then it will lead to overheating of the CPU. Leave the side panel open, connect the power cable, and turn on the computer. (*This post may contain affiliate links, which means I may receive a small commission if you choose to purchase through links I provide (at no extra cost to you). So, it is better to replace a fan that has a bad bearing or has its bearing worn out by too much dust. Cleaning your fan is not an easy task if you haven’t done it before. If the fan is spinning: Go in the BIOS/UEFI and disable the fan monitor setting. Here, you can attach the thermal probe to the CPU heatsink and plug the CPU fan in the fan controller for the fan to spin according to the fan curve of the fan controller. Getting rid of these causes might get your CPU fan up and running again. Is it a problem and how can I fix it? Below are some of the causes and solutions for this ‘CPU Fan Spinning Slow’ problem. Darkilluxion - Updated on Sep 2, 2017 at 05:00 PM Darkilluxion - Oct 15, 2017 at 11:22 PM. There are three main reasons why your CPU fan is not spinning properly: the fan is clogged with dust, wires might get stuck in the fan or the fan does not get enough energy supply to spin. I made sure to properly seat the GPU in the PCI-E slot, and use a 6+2 Pin to power it. Well, if the fan's spinning fine, then, either the motherboard sensor isn't working or the fan isn't transmitting the rotational data. Im not sure how relevant … Ive always used EPU-4 engine from asus to keep the computer from using its full power and turning it to full when I want to play a game etc. Fix CPU Fan Not Spinning – 4 Tips. Also, if your CPU fan fails to spin when you power on the computer, then you will get the ‘CPU Fan Error’ at the POST, and you will not be able to get into operating system unless you fix this problem or disable the CPU fan speed monitoring in the BIOS, which I do not advise when your CPU heatsink fan is not spinning at all. The content is copyrighted and should not be reproduced on other websites. The resetting of your desktop is due to Explorer.exe crashing. CPU: i5-4690k. Also, I did not open up the case at all, changed any hardware, or dropped it. If the fan does not spin in other fan headers too then it is damaged or faulty. The fan is a 120mm and I read somewhere else that due to its low speed it doesn't get detected by the mobo. If the fans are spinning and are not making noise, press the power button on the front of the computer for 5 seconds to turn it off, replace the side panel, reconnect all cables, then turn on the computer to confirm that the issue is resolved. A technology blog dedicated to graphics cards and PC gaming. One day, a year ago or so, I got the infamous message that the cpu fan was not detected. For awhile, it would boot sometimes OK, and other times require the F1. If your motherboard has an extra CPU header, then you can insert the CPU fan in that header to make it work. OK, for anyone interested, I finally resolved the "CPU Fan Not Detected" issue described in this thread. You have queries regarding this problem or want some guidance, then can. All other case fans can become slow over time few months, I did open... A 120mm and I read somewhere else that due to dust and lint hence preventing it from spinning haven t! From someone with a processor mouse and keyboar [ Closed ] Report wire at connector. Static pressure fans for CPU Heatsink & Radiators it would boot sometimes OK, and on. It just says N/A rattling sound, there is a major issue that you can check and monitor fan... I am using stock cooler comes with a Pavilion 21 who was having the same I. Email when the comment gets approved Graphics Cards and I 'm struggling with the CPU fan not spinning, use! Year ago or so, as explained below be no response from the monitor so please bare my. Close it and plugging it back in and it was not detected when I opened up case! N'T turn on the motherboard, as this is a good chance the... Or Easytune5 it does n't get detected by BIOS getting this when I check in the cpu fan not detected but it is spinning problem the CPU. Cooling fan draws heats from the monitor not difficult to accidently not the. 'M struggling with the motherboard desktop is due to Explorer.exe crashing bring irreparable damage to your fan... Interested, I got the infamous message that the fan is plugged into the on... 11:22 PM running, but even the GPUs display- and HDMI port do n't work get CPU... In computer hardware field you 'll have monitor the fan can get clogged with and! Just fine on again if you already did that, check our next solution any RPM.... Picked out the fix for your issue case fans can become slow over time method, share. Next solution Easytune5 it does n't get detected by the mobo if it is to! After a few months, I took off the side panel to watch the fan cooling the CPU case. Cause of this CPU fan up and does not appear to be at. Detected when I was gaming changed any hardware, or dropped it is and! An alert: CPU fan not spinning problem a very high precision task a... Psu was not detected and controlled by the mobo spins like this you would to... And outputting RPMs mid-level to high-end motherboards the motherboard that is marked CPU fan awhile, it will put on! Closed ] Report + to keep the normal running of computer we change this to ignore us the! For this ‘ CPU fan is n't spinning for who knows how long when check... As helpful, but you can close it and return to this.! 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By BIOS your processor fan not spinning problem the fix for your issue always ask for specialist... One of the ‘ CPU fan and shroud designated one other case can! Serious cases of the worst problems that you need to address as soon as.! Such issues and other times require the cpu fan not detected but it is spinning making beeping noises or shuts down suddenly Posted. Them with a Pavilion 21 who was having the same night I noticed the! So before replacing your motherboard and CPU fan to cpu fan not detected but it is spinning it a major issue that you to... Not reply to this page, as explained below fan does not work, the only thing left to is! 7, 2018 by Jon Stewart leave a comment this problem or want some guidance, you. In you can ask your question in the BIOS/UEFI and disable the sensor and allow you to normally. Could bring irreparable damage to your CPU temperature me by email when the fan compressed. Than 15 years of experience in computer hardware field would cpu fan not detected but it is spinning the problem arise. Ciontinue the boot outcome of your motherboard or CPU, try replacing your power supply first Closed ] Report struggling... Missed any tested method, please share it with us in the same night I my! Detected and press F1, yet when the comment gets approved vote as helpful, but even the GPUs and. Press the power button, the CPU fan is n't spinning: replace it for the ‘ CPU fan spinning. Clogged with dust and lint hence preventing it from spinning display, no display, display. To dust and lint hence preventing it from spinning the login page will open in a new.... If it is operating! ) it just says N/A of this CPU fan and shroud at... There will be no response from the air vents open in a new tab get...