It freaked me out. Page 1 of 2 - CPU fan starts turning for half second then stops at start up - posted in System Building and Upgrading: new motherboard CPU fan starts turning for half second then stops. Now, the reason why the PSU stops powering the card is where the culprit hunt starts. Otherwise, I wouldn't worry too much about it. reinstalled drivers, removed msi afterbuners, installed a ancient gt 640 (fans worked). Remove CPU Power. The site may not work properly if you don't, If you do not update your browser, we suggest you visit, Press J to jump to the feed. Fan issue persisted. Page 1 of 2 - Fans spin for half second when cpu is installed. I don't know, because I never heard this noise before and normally when i play game, the sound of gaming drown out every other sound. This is the place to ask! etc. 11 years ago In reply to Push start button, fan ru ... Hi Tyler, i have the same problem. It sounds like fan noise and it comes from the bottom of my PSU. Take a look for yourself. Upon booting, PSU fan and CPU fan again spin for a second and then stop simultaneously. Any other issues other than noise? Place it back in, fans spin a bit at the start then stop. Planning on building a computer but need some advice? All worked well for 2 weeks. Same fan issue persisted. It's zero RPM until 70% of load, which is 532 watts. I have an OptiPlex 3010 which has decided not to start up. I mean not when its in operation or when its off. etc. Hi, so I recently finished a PC build and I went to power it on the fans spun, but no startup. It might be because the PSU itself can't handle it anymore because it's low quality or it's short on wattage, or because the card is being restricted from receiving all the power it needs on Windows power settings or on GPU power settings. I see the fan wasn't spinning at all. Tonight I notice that there is a noise from my PSU that I never heard before. Press question mark to learn the rest of the keyboard shortcuts. I dusted out the original PSU and re-installed it. And just to be sure, is the sound not just from the HDD vibrations affecting the case? Anyone is welcome to seek the input of our helpful community as they piece together their desktop. So connect them for less then a second (literally touch) and then … Consider formatting your parts list. Other than that, no problem at all. The problem follows the psu. 13 years ago In reply to Fans Spin then stop Thanks for your help, but it has been a long two months and I am still stuck. Both GPU and CPU temperatures are pretty cool. Two weeks ago the PC would not turn on and figured it must be the PSU, so I replaced the original PSU with a Corsair CV450. You will see something of the same. With one of them the PSU fan starts to spin without booting the system (just powered on) the fans start pulsing every few seconds) and nothing else happens - … If the PSU is still under warranty (can vary from 1 to 7 years depending on manufacturer) then get it replaced. Everything else works fine in my PCEven when during intensive gaming when temp exceeds 85°C the fan won’t spin. Your PSU doesn't spin until it hits 20% of its total wattage. Installed it just fine, LED green light comes on the mobo but the fan starts up for a few seconds then stops and the computer doesn't boot. https://www.youtube.com/watch?v=_ktrLPg-6rA. Are you sure it's not just part of the "Zero RPM" feature where the PSU stops the fan under low temps? Press J to jump to the feed. Fan Noise. Tried both bioses, both were flashed successfully when i got the card from a miner. /r/buildapc is a community-driven subreddit dedicated to custom PC assembly. We use cookies to … Build a PC What happens when a PSU fan stops? I removed all the RAM and powered on. The PSU has 2 such connectors. Does it sound like that? When I opened the PSU, the fan was, somehow, slightly detached from it's "regular" spot, and due to it being not in a fixed position, it was rapidly moving forward and back, and that was the source of the grinding noise. What actually starts the PSU, is a short pulse on the wire. Can you tell if the fan behaves differently under different loads (idle on desktop vs playing a graphically intensive game)? Bought a PSU tester and everything passes on the PSU. The graphic card XFX GTS 250 512Mb is powered with a 6pin connector. This is the first time it happens and I don't have any experience with PSU. We put in a new PSU in it but still no booting. Is it dangerous? (Other of the same type don't do this) Also when I use another psu in that case the case fan runs normal. Anyone is welcome to seek the input of our helpful community as they piece together their desktop. During gaming GPU z shows fans speed % ~ 70-100% but RPM is always at 0 (gaming or idle). I did some investigating and saw what the answer was. Turns out, my PSU fans never spins at all because I never hits the wattage to turn it on. It's somewhat subtle, but my system is pretty quiet so I can pick it up, and beside it's different from normal sound that my system normally makes. Send it to EVGA for repair or replacement. What cause it? Full repairs starting at $19.95. http://www.corsair.com/en-us/hx-series-hx750-power-supply-750-watt-80-plus-gold-certified-modular-psu. If the PSU fan stops working, then its components can get overheated and may result in serious damage to the PSU components, and to your other components too in some cases. Anyone have information on how to prevent the install from happening on start up? Try a weaker video card or a stronger PSU. What is your parts list? Power Supply starts then stops - posted in Internal Hardware: It rained last week and I got some water in my basement. I have no idea what to do. The paperclip test is the act of shorting the two pins (ATX 16 and 17) to soft-activate the power supply. When I power it on, the fans start, the green light on the back of the PSU lights up then the 3 & 4 LEDs on the front panel flash before the box turns itself off. Never give me any problem or whatsoever. New comments cannot be posted and votes cannot be cast. AKiTiO Node PSU fan starts, then stops, repeatedly until slowly starting and then spins fine? This will definitely affect your work, cost you money and will lead to mental stress because you don’t want to have a burnt PSU in the middle of your work. It doesn't appear in any feeds, and anyone with a direct link to it will see a message like this one. That's not enough to drive the 6950, in fact I think you're overdrawing on boot when the rig first starts up before the system can even get into idle. Thread starter Reachable; Start date Apr 18, ... it's usually straightforward) and the fan appeared to spin for a while and then apparently stopped. List any error messages and symptoms. Here's mine: http://www.corsair.com/en-us/ax760-atx-power-supply-760-watt-80-plus-platinum-certified-fully-modular-psu. CPU fan starts then stops - posted in Hardware, Components and Peripherals: Hello, I am building a new PC, and having issues. Close. The sound is on for maybe 2 minutes, then stop for 4-5 minutes, then on for another 2 minutes. All the case-fans, cpu heatsink fans are off. My acer aspire laptop turns on the fan starts for a few seconds then stops and i get nothing please help - Answered by a verified Tech Support Specialist. If you have What happens when a PSU fan stops? The replacement PSU lacked a 2nd 'P4 12v' connector for my video card (Radeon HD5770). Same behavior. Builds: 2. Any help would be appreciated. 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. Whatever causes it disappears on restart. Dead fan, a really common failure in power supplies. I notice this sound right now when I'm not doing anything significant or taxing to the system. Generally a fan twitch means that the power supply has a fault and is shutting down for protection. Remove all connections from motherboard to hard drives and Blu-ray drive. I think it's broken. The purpose here is to remove as much hardware as possible while still maintaining your computer's ability to power on. Tonight I notice that there is a noise from my PSU that I never heard before. New comments cannot be posted and votes cannot be cast. I have returned the CPU and the Motherboard, both are new. Press question mark to learn the rest of the keyboard shortcuts. Planning on building a computer but need some advice? I've seen it all. On Boot CPU fan Spins then Stops, Computer starts as normal by AwesomeAndy Mar 16, 2005 4:15AM PST I am running an AMD Athlon at 1 gig on an Asus A7V Mobo. Re: Power Supply starts then stops after manual start up as far as I recall, green and black wires do not need to be connected. Turned on the psu outside the case with a clip and it goes full power too. Joined: 3 years ago. Second of all, the max +12v output that PSU can reliably do is 350-watts and each rail can effectively use only half of that(ish). Posted by 2 years ago. I'm 100% sure the noise come from the PSU because I literally pull the side panel and listen to it to make sure it comes from the PSU. /r/buildapc is a community-driven subreddit dedicated to custom PC assembly. I have tried unplugging the PSU and holding power for 30 seconds and that didn’t work. The fans in PSU's are largely standard fans. If your computer continues to turn off by itself, proceed to Step 11. It sounds like it. Right now if the fan is loud when I start the computer, all I have to do is let the computer finish Start up, then I click Restart and when the computer restarts the fan is normal and quiet. PSU fan spins briefly then stops. Also, I don't even know for sure if it's really fan sound. Computer Building: 1: Oct 8, 2020: R: Question Monitor went blank while playing a game. Question what do people think as a get started streaming gaming PC? Repair Tool. The thing is that it doesn't make that noise all the time. Last Post RSS MacFreekDotKext (@jatechnology) Eminent Member. A short video showing how a PWM fan controller can mess with a non PWM fan. System boots, fans spin, system restarts, fans spin, system restarts, fans spin, etc. Describe your problem. Do understand that opening the PSU is 1. dangerous, those capacitors can carry a hell of a shock, and 2. breaks any and all warranty. In fact it's on right now and my GPU isn't even running. This is the place to ask! List anything you've done in attempt to diagnose or fix the problem. 20% of 750 is 150 watts. Why do my CPU and case fans spin but no startup? Just sitting here web browsing and the fan turns on. As foon as the pc starts up the fans start going full power and never stop. Take a look at the tech specs tab. Provide any additional details you wish below. Home PC won't start up with new motherboard. In the end the problem was something totally different then we thought. I have the AX 760. When the system is shutdown (but not powered off), the PSU fan spins for about 10 minutes. TIP: Click here now to repair Windows faults and optimize system speed. Suddenly, today, when I turn on the PC the fans start, then stop then start (i.e. 1. It is only loud because it is “calling for a lot of CPU’s”, I think that is what Cal said. The chassis fans don't start, and the CPU and graphics card fans spin briefly and then stop. The sound is on for maybe 2 minutes, then stop for 4-5 minutes, then on for another 2 minutes. Now, take a look at any of their various PSU's. Some are at the low end like 20, some are at the high end like 70. Not too loud, but certainly audible from the inside of my case with the side panel on. Archived. The case fan too. Help I replaced the onboard battery. Post relevant photos of build/parts here. With that PSU I don't think there's a fan off mode. If you really want to find out for sure, get one of those things that monitor wattage from the wall. So this desktop died on us. If your computer turns on, and stays on, with essential hardware only, proceed to Step 10. Is there anything I can do? - posted in System Building and Upgrading: Hi, Im bulding a new computer and have run into some trouble getting it to boot. I hooked up a loopback and it just spins briefly and then stops. It sounds like fan noise and it comes from the bottom of my PSU. PSU fan spins briefly then stops. One day I was cleaning it my computer and turned it on with the window off. Computer Building: 3: Oct 28, 2020: J: Question Windows Starts Inconsistently, All fans stop when Windows loads then starts up again. then we strongly recommend that you Download (What happens when a PSU fan stops?) How to fix a fast spinning PSU fan Clean out the dust . I have around 7 pcs with this problem. Fans only spin at startup for like 2 seconds and then stop spinning. Sorry, this post was deleted by the person who originally posted it. Start your PC with essential hardware only. no, the sound doesn't come from GPU. Remove all power to hard drives and Blu-ray drive. Many of Corsairs fans have zero RPM mode, and the thresholds for 'zero' are all across the board. Posts: 46. June 9, 2018 5:15 am Hello, I am having a new issue with my AKiTIO Node. I have used this machine for a little more than 2 years. The thing is that it doesn't make that noise all the time. Was convinced it was the mobo so we bought a new one. If not, is the fan noise really noticeable, or just barely audible over other ambient noises? Powered on confirmed that the PSU fan was working ok. Be descriptive. My machine was on the floor. PSU is a evga 750G+ supernova @1.5 years old. Looks like you're using new Reddit on an old browser. Get one of those things that Monitor wattage from the HDD vibrations the... Or just barely audible over other ambient noises some investigating and saw What the answer was be posted votes! Intensive game ) still no booting anything you 've done in attempt to diagnose or the... On with the side panel on card XFX GTS 250 512Mb is powered a... 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Place it back in, fans spin for a second ( literally touch ) and then … the fans,. You sure it 's really fan sound: question Monitor went blank playing... Turn it on with the window off of the `` zero RPM '' feature where the stops... By itself, proceed to Step 11 fan was n't spinning at all because I hits! Want to find out for sure, get one of those things that wattage!