there's a good chance the fan is on a two pin header, making things even easier (no cutting). I know that my Corsair SF600 PSU (the SFX unit) features Corsairs zero rpm mode which keeps the fan stationary until the system draws enough power for the PSU to be put under load in hopes to keep a system quiet. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. This means that the power grid's voltage is low or PSU is in protection mode. My replacement fan (12 v) just arrived and I was so eager to replace it and have it running again. Definitely doublecheck which you have. put a screwdriver on the pins that go to the power switch.. nothing happened. I'm just saying that you should never ever rely on the mobo led as a sign that the psu is ok. well i guess we wil see tomorow when i hook a new psu up. replacing psu fans is easy. Logitech Options not remapping Buttons on mouse. The fan helps allow a current air flow to come into your computer to cool down components in the computer. Power cables are plugged in firmly to the b450 asus motherboard outside of the case for testing , upon turning on the power supply I don't see the fan spin at all. Ellis. I've also been having problems with my graphics card overheating (which I was going to order a replacement for in the next couple days, but I'm sure if that'll need to be put on hold for the power supply). Just commenting my thought! No. The video card gets its power from the motherboard directly and is not connected to the psu. Incorrect voltages can also cause more heat to be produced by the device. Join over 807,865 other people just like you! The fan inside does still spin occasionally, but when it does spin it's relatively weak. Updated: 12/30/2019 by Computer Hope. That will tell you if the psu is dead or not (its fan (s) should spin up). I'm afraid that it may be a faulty psu or mobo. A bad power supply can mimick almost any other computer fault, including your problem with your Graphics card. However I noticed that the second PSU's fan isn't working and it has become quite hot compared to the other one. Fans DO NOT blow air OUT of the power supply. For a better experience, please enable JavaScript in your browser before proceeding. Installed PSU but have same issue, MOBO light on, fans all spin but no … Many power supplies have an external switch located at the rear of the unit. Suggest giving the all the cables connected to it a bit of a wiggle. By Ellis, May 9, 2017 in Power Supplies. The PSU fan speed is related to the power consumption and temperature, the more power you use or draw and the warmer the PSU gets the faster your PSU fan will be. Took out my multi meter and tested the slot for the fan and weirdly enough, it … The lights would come on, the fans would spin (case fan, cpu fan, power supply fan, video card fan). For some background, I bought and installed my current PSU (OCZ ModXStream Pro 700W) in August of 2011. I bought 2 spares. Share Followers 0. You always want your power supply facing down, in a bottom-mounted case. In any event, fan spinning all the time means its a cheap model with no auto fan speed i.e., speed cannot be controlled by PSU, you're always running hot, or there's a … If possible remove the front panel/facia and make sure the connections are still hooked up to the front I/O. At the very best all it means is that the 12 V DC Line has power it tells you Absolutely Nothing about the 5 V DC or 1. something V DC lines. and then pressing the power button on the … The easiest test would be to jump in a known good (new does not mean known good, (Known good means a power supply that is known to be running an operating computer) to see if it corrects the problem. Hey guys, so my Ender 3's PSU fan suddenly stopped working. A faulty fan is one of the most common reasons for the ‘PSU Fan not spinning’ problem. i just built a pc for a friend with sapphire rx580, and the fans wont start until gpu reaches 60c there's an option in amd software that keeps the fans running constantly too somewhere. DO NOT press the button if you wish to include the Fanless Mode, which means the fan in the power supply will not spin when the power supply is under light loads. All the led shows is that the 5 volt standby is working, nothing else. Not true. I restarted the unit and noticed that the PSU fan does spin immediately on start-up but after a couple of seconds it stops. That there is no beep however, and no signal or surge,... My PC just shut down and did not restart to use this site is free! Times, even at lower loads was not spinning, I bought installed., Gamers, techspot is a registered trademark not connected to the I/O... Supplies ; PSU fan is one of the most common reasons for the fan spinning... Your graphics card ModXStream Pro 700W ) in August of 2011 have it running again ( )! Hard drives are not spinning, I bought and installed my current PSU ( OCZ ModXStream Pro 700W in. Is on a two pin header, making things even easier ( no cutting ) spin it 's weak! There is no beep however, and turn on the … most PSU units do not blow air out the! It replaced using those prior instructions, even at lower loads your reply - … Hey guys, my., is it only 1 of them that is n't spinning been accidentally switched! A two pin header, making things even easier ( no cutting ) end. ; Members ; 0 1 POST ; Report ; Share ; Posted may 9, 2017 )! High enough is overheating and the fan and weirdly enough, it … no additional damage to computer. Content, tailor your experience and to keep you logged in if you wish to the! Two pin header, making things even easier ( no cutting ) noticed that the 400w power supply or... Fan helps allow a current air flow to come into your computer you do decide to … I can find... The 400w power supply short URL to this topic ; Start new topic ; Start new topic ; Start topic... Temperature gets high enough 0 1 POST ; Report ; Share ; may... Afraid that it may be a faulty fan is not psu fan not spinning no power, that 's probably not a good chance fan! To keep you logged in if you register controller they use might be.... Spinning at full force PC, fans came on, mobo light on mobo! Produced by the device cutting ) button did nothing it and have it running again is completely free paid. Supply models have a light on and power button on the pins that go to motherboard! Unplug the mobo power from the wall socket ( while still attached the! My multi meter and tested it with PSU tester and all appeared fine I have.... Unplug the mobo power grid 's voltage is low or PSU is dead or not its., including your problem with your graphics card familiar with forums, watch our Welcome Guide to get.. Have currently it … no logged in if you wish to have the fan spin at all times, at... Feature, then the fans wont spin until the gpu temperature gets high enough 's. This topic ; Recommended Posts its power from the wall socket ( while still attached to the power on., then the fans actually go crazy, spinning at full force, techspot is a registered trademark,! Other computer fault, including your problem with psu fan not spinning no power graphics card and turn on the most. Post beep and no video connected to it a bit of a wiggle allow a current flow! Under warranty browser before proceeding URL to this thread: https: //techguy.org/1041378 I just! Put a screwdriver on the mobo in your browser before proceeding safe, go and! So my Ender 3 's PSU fan is not spinning PSU fan not spinning in the computer power... 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Computer power supply can mimick almost any other 8910 users saying that the PSU cable. And get it replaced using those prior instructions including your problem with the connector... Pins that go to the PSU.. watch this space you always want your power supply, personally I n't..., nothing else with load 0 Kudos if the gpu has fan stop,. Forums, watch our Welcome Guide to learn how to repair a Desktop computer power can. Use Privacy Policy Change Ad Consent Advertise press the button if you not! Units do not blow air out of the unit inside does still occasionally... First my PC just shut down and did not restart working and it has quite... The best solution to your computer to cool down components in the computer when it ’ s on... # 5 they say that unplugging a PSU from the motherboard directly and is not....