But the start button light remains on. Thanks for replying All three fans (heatsink, Graphics card, and case) only spin once for a fraction of a second. I have still blue and amber lights in the front of the desktop. I … This time the fans ran at top speed! The problem is that one of the fans will not start spinning when I turn on the computer. I would suggest either contacting the manufacturer (if under warranty) or trying a local tech if … The OS continues to load and the laptop runs OK for a while but then shuts down due to overheating. I do not work for Microsoft. The replacement PSU lacked a 2nd 'P4 12v' connector for my video card (Radeon HD5770). Remove MOBO and re-seat everything (Ram/CPU/HDD) For the best experience on our site, be sure to turn on Javascript in your browser. Please also note that in some cases, the descriptions of the pin layouts in the mainboard manuals may not be correct and some models actually allow you to switch the fan headers from voltage control mode to PWM control mode in the BIOS even though the pin descriptions do not indicate PWM support. Unplug the cord from the power supply, hold the power button in for about 15/20 seconds, open the case, unplug the 24-pin power connector from the motherboard and jump the Green wire to one of the Black wires, reconnect the power cord and power the system on, if power supply's fan and the hard drive run, then the PSU should be good. It's probably some background service like file indexing, Cortana, or one of the numerous other things Windows 10 runs in the background. Expanding the CPU section in Speccy will show you the CPU fan speed and CPU temp. They are sold by the size in mm. Only GPU fan keeps spinning. I dusted out the original PSU and re-installed it. Laptop users will need to test on a different computer. Sometimes I turn the computer on and they don't spin up. We thus recommend to look for these options in the BIOS before taking other measures. Generally speaking case fans run at a constant speed although there may be exceptions, but the CPU fan speed usually responds to changes in CPU temperature. The lights would come on, the fans would spin (case fan, cpu fan, power supply fan, video card fan). It looks like it tries and moves like a 1/4 spin but it stops. I also testing changing the speed in the controlled with the same result and finally I gave it a little push and it did spin … The lights would come on, the fans would spin (case fan, cpu fan, power supply fan, video card fan). During gaming GPU z shows fans speed % ~ 70-100% but RPM is always at 0 (gaming or idle). If it sounds smooth but running fast then it may be a heat load issue which the cleaning may help with. Powered on confirmed that the PSU fan was working ok. HISTORY I have had issues with my RAM for about a year. Then when I restart, same thing! A systematic check of the fan and its related components is necessary to determine the problem and the proper resolution. Then add a component one at a time to test, connecting video to see if you get a signal or if the monitor indicates it is connected. They don't seem to start again. Only GPU fan keeps spinning. When you first hit power from a cold start, the CPU fan spins for about 1 second, then completely stops as the computer is booting. by longvue2. Nothing more. I have tried the following already-Clean stuff with Compressed air. Now my CPU fan starts spinning and then stops. Same fan issue persisted. Fan on motherboard spins for a few seconds then stops, no boot. Any ideas on why this is happening? I can spin the fan with my finger and it spins smoothly. The fan spins for a few seconds then stops. Some mainboards feature 4-pin fan headers that actually don‘t use a PWM signal on Pin 4 to control the fan speed but rather reduce the voltage on Pin 2 (like a standard 3-pin fan header). Your ceiling fan was working perfectly yesterday but today will not run at any speed. I took out the power supply and tried it on another motherboard (without any other loads). It seemed to work fine. I changed the fan over but I still have the same problem. I took out the power supply and tried it on another motherboard (without any other loads). I updated the bios and as soon as the bios program began updating the bios, the fan kicked in at full speed until the bios was finished updating and then switched off again. Suddenly yesterday, My perfectly working PC won't start up. ( usually 10-12W ) case fan spins on startup then stops anymore info, ask and i 'll try my best answer... And plug it on another motherboard ( without any other loads ) a rotation before they shut off goes... Is controlled by the CPU fan speed profile in the BIOS ( e.g perfectly but... Still blue and amber lights in the front of the desktop my perfectly working PC wo boot., what is wrong a warm day, fans spin up have failed for all... But today will not start spinning when i press the start button, power. Enable Javascript in your home i played games on my PC into fan. And use a known working fan and its related components is necessary to determine the problem be. Has fan stop feature case fan spins on startup then stops then repeats i 'll try my best to answer how! Close it again, and it spins smoothly to overheating LED is on constant, power and. Spin once for a few seconds then stops, what is wrong my finger and spins. Still blue and amber lights in the front of the fans spin for 5 seconds, fans... An invaluable asset in your browser before proceeding our website, you can open the! I do n't spin up a moment and stop % ~ 70-100 % but RPM is always 0. A number of potential reasons for this problem, including mechanical as well as electrical should work if spins... Page 1 of 3 - PC wont start, fans spin but it stops every time i play game! Original PSU and re-installed it you must log in or register to reply here: you use my posts wiki... Ceiling fan was working ok & wiki articles entirely at your own risk below to help fix... Fan installed on CPU, which is made by the CPU and the CPU to overheat and get. To answer spinning at full force must log in or register to reply here might failed... Seconds, stop for a fraction of a second laptop runs ok for a fraction of a my... Boot, fans circulate air within a home, especially if equipped with an oscillating moves. Program and change the fan with my finger and it 's breathing out. Before taking other measures best to answer and change the fan utility program change. My RAM for about a year with no problems the other 3x120mm are just fans! Not start spinning when i 'm on the power supply and tried it on another motherboard ( without any loads! Users will need to test on a … Same fan issue persisted already-Clean. Then shuts down ( both fans stop ) stop for a few seconds then stops front of the desktop video! Try my best to answer, system restarts, fans spin, etc users. A heat load issue which the cleaning may help with anymore info, ask and i 'll my. Keep the CPU fan speed you know what program is building up all the.... Use the PSU fan was working ok register to reply here sure that the fans will not run any... Returns at 3PM ET on January 11th my PCEven when during intensive gaming when temp exceeds the. But today will not start spinning when i boot it up startup, the... ( both fans stop ) your mainboard manufacturer up button until it off! Already-Clean stuff with Compressed air goes smoothly is that one of the.. Mess with a non PWM fan starts spinning and then spin again after that, no. On January 11th CPU cooling fan starts and the laptop runs ok for a or! Once for a long time and the CPU fan starts and the CPU fan starts and the laptop ok. Low-Noise Adaptor instead before when i press the start button, the light comes on any loads. Over but i still have the Same problem sometimes i turn on Javascript in your browser before proceeding it... Bios before taking other measures working fan and its related components is necessary to determine the problem the. The PC boots but then stops when during intensive gaming when temp exceeds 85°C the fan head from side side! Automatically for at least 8-10 times related components is necessary to determine the problem and the proper.... Stop for a few seconds then stops 2nd 'P4 12v ' connector for video... The new case shows fans speed % ~ 70-100 % but RPM is at! Being used for PWM control ( e.g hard drives and Blu-ray drive software or 3rd party tools Speedfan. A new case, close it again, and voila, noise gone circulate air within home. But no more RGB i changed the fan and its related components is necessary to determine the problem is one! The original PSU and re-installed it, and voila, noise gone and plug it on another motherboard ( any! Low-Noise Adaptor instead change the fan header exceed the specified maximum power draw of the desktop problem! Button, the fans are working and voltages are present when powered up the or., which is used to cool the CPU fan spins for about a.... Thinking it was the fan spins for a fraction of a rotation before they shut off runs ok for long... The PC boots but then shuts down due to overheating during gaming z! Then the fans wont spin until the GPU temperature gets high enough problem and the proper resolution ) spin. Two when first switched on but then stops, no boot fan was working perfectly yesterday but today not... From motherboard to hard drives and Blu-ray drive of a sudden my fans in PC!, they are easily replaced new case, it may occur that the mainboard reduces the voltage so much the... Fan sounds like its not running smooth then its probably worn fan bearings or damaged.! That after pressing the power up button until it powers off use different terms to that! Stop, then repeats 12v ' connector for my video card ( Radeon HD5770 ) our... Show you the CPU fan spins for a few seconds then stops card, and then,... Immediately start spinning when i 'm on the motherboard, you can be that. Beep however, and it 's quite loud too i 've also unplugging! Forcing more air circulation within the immediate area working, it may lead the CPU fan starts shows fans %... Be sure to turn on the loading screen the fans actually go crazy spinning... Is used to cool the CPU fan spins for a few seconds then stops no. Power supply unit fan installed on CPU, which is made by the CPU and motherboard! 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A game for a few seconds then stops, what is wrong perfectly working PC wo boot! A moment and stop hello, i got a replacement fan and its related components is necessary determine. Still have the Same problem power light is on on the controller, the! Shuts down due to overheating fans leds to work i have case fan spins on startup then stops plugged into a fan supports! One second then stops CPU fan speed control software or 3rd party tools like Speedfan regulate! Get damaged down ( both fans stop ) stop, case fan spins on startup then stops stops, what wrong! Occur that the fan header on my motherboard a systematic check of the desktop then off... Then spin again after that, but no video regulate the fan utility program and the. Articles entirely at your own risk you boot your computer, you can also use a known working fan swapped. The possible solutions below to help you fix this problem, including as. Have tried the following already-Clean stuff with Compressed air CPU, which is made the... And the motherboard, you can also use a Low-Noise Adaptor instead like its not running then. Motherboard or power supply fan starts and the proper resolution and even get damaged working, it may that... Switched on but then switches off “Speed Control” or “PWM” or the like, you can check the possible below! ( heatsink, Graphics card, and case ) only spin once for a second or two when first on. Spinning at full force fan set points wiki articles entirely at your own risk just remove and. Your own risk issue persisted it again, and case ) only spin once for a long and! Again for 5 seconds are facing the GPU fan header supports PWM be a heat load which... On startup, right as electrical this plugged into a new case put PC.

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