if you have capasitors, check for leaks or barrel cracks. © 2021 TechSpot, Inc. All Rights Reserved. Sorry forgot to mention that it repeats this even after successful reboot. Just because your computer came on for a few moments doesn't mean that the power supply unit in your computer is working properly. The power supply tends to cause more problems than any other piece of hardware and is very often the cause of a computer turning just a hunch here i had the same symptoms on a machine i had last year and it was a hard drive that was having a problem.....let me know, like to help if i can. The more the CPU does, the more the graphics card does, the hotter things get. Fans come on, cool it down, then it tells them it doesn't need them anymore. When the temperature exceeds a specific value -- usually 215 degrees Fahrenheit -- the computer will turn the fan ��� the computer is just cooling itself down like we try and cool outselves down when we get hot. How can I cool down my system better on load? It is a 240 as opposed to a range of 240-253. The fans started running at high RPM shortly after I updated my Asus motherboard BIOS. check all cables in the computer that you used before installing new hardware. I have a Dell Inspiron 530. Adjust the power settings, clean the fan vents, check for suspicious processes, and then update the BIOS to help reduce the internal temperature. I'm at a loss. i suggest getting a new fan, doesnt sound good or... is something stuck in it, are you sure the fan in going off, it could just be the computer finishing off the hard job, my comp does tht even when im not doing anything. HI, it could be faulty, but due to the hot weather that can have an effect on the fan. Tells fans to cool it down or it'll go on strike. I've already updated the bios and all of the drivers and it's just annoying. While in sleep mode, the fan start and stop every minute or two. So, how do you "shutdown" your computer? So try disabling ���FAN always On��� from the BIOS. The fan goes on and off constantly after booting up. So I just bought a Asus UX32A and my fan keeps going on then off then a few secs later it goes on then off again and it keeps repeating. Your computer sounds like it's overheating. Thanks for verifying that stopping the Windows Update task would turn Try checking the back where the vents are, it might be getting clogged up with dust and check the fan for dust, you will need to take the side off your computer to do this. My video card I purchased only a couple of months ago and have had no problems with it. I have now replaced the motherboard, cpu, and power supply, as well as RAM. share. I have been looking to upgrade this machine for awhile. How to Auto-Control Your PC���s Fans for Cool, Quiet Operation If the computer is overworked you might need to clean it up a bit, remove programs you dont use, do virus scan, disc clean up etc. the UBCD4WIN has some utilities you can use to diagnose problems on a machine. Why does the computer turn off without warning occasionally? You can sign in to give your opinion on the answer. New comments cannot be ��� If your computer turns off immediately or even within a few seconds after it is turned on, there could be several possible issues. The pc fans are running at full speed most of the time keep turning on and off repeatedly, even when I'm not doing anything. There���s a fan inside your machine that keeps it cool. The computer occasionally shuts down for no discernible reason. If your device's ... Mac Pro has three fans on the front of the computer and vents on the front and back. when you have the laptop or computer on a surface then they can get very hot. My computer's cpu fan keeps turning on and off! I am trying to access my system bios but don't know the password - help? Then it turns and again and does the same thing. TECHSPOT : Tech Enthusiasts, Power Users, Gamers, TechSpot is a registered trademark. I looked at my CPU usage and everytime I do something on my laptop (searching something on google for example), I notice that the CPU usage increases to 90-100%. The fan in the computer is used for cooling the computer, this is because the computer could overheat and overload causing the computer to have a fault. Join Yahoo Answers and get 100 points today. Please help, I'm at a loss. The fan cools the computers processor and if this over heats or go's wrong it could be very expensive indeed but your computer should shut down before this anyway. I am at my wit's end. It was weird and it sounded like a hair dryer going on and off every 2 minutes. The computer turns the cooling fan on and off when it receives a temperature indication from the coolant temperature sensor. Hi there, The CPU Fan on my Inspiron 580 desktop is continually cycling, running up to full speed for about 1-2 secs, and then back to normal for maybe 5 seconds. I'm going to try and be concise and to the point. MacBook Pro has vents along the side and on the back. report. I have taken the side of the case off and have had a no problems yet. Try to make sure it's not kept somewhere too hot coz this will only make it worse. the reason i ask is i had a machine do the same thing and it was a psu going out. do you hear anything coming from the motherboard? The system uses a ���temperature probe��� to detect temperature changes inside the heat exchanger (see image below) and turns your blower on and off in response. Not even System Recovery (F11). Lexem Newbie. If AMD/Nvidia sell out hardware, but consumers in  bulk don't get it. Btw, i assume that nothing is overclocked here? wiggle wires carefully to determine if there is an unvisible break, if so, this may cause a reboot. Your computer may be overheating. Same cycle, over and over. If your fan is very noisy then I would suggest getting a new fan, it doesn't sound good, it shouldn't be noisy.. I also downgraded the BIOS firmware by updating to my previous BIOS version, but that The idea is to get more power cost effiecent. Problem is once I did this my computer now completely shuts off all fans stop, everything shuts down. The surface your device rests on can block its vents, affecting fan behavior. HP Pavilion 550-110 desktop - I am trying to access my system bios but don't know the password - help? It generally runs at around 45c. unplug ALL unecessary hardware (I.e. About fan noise. What can I modify to let it cool down without a fan an keep house quiet while not much need to be done. it could be a lot of things. Note. All 3 voltages don't necessarily always fail ot once. When shutting down manually, why does the screen freeze on "Windows Is Now Shutting Down" and then not turn the power off? Is it the hard drive that is the problem? Hello, I never turned off my PC, I let it fall in sleep mode. i would like you to run chkdsk and download speed fan and run the HDD analysis to check the health of your hard drives. it's really scaring me as the computer does turn on, but the cpu fan would randomly turn off and then turn on while spinning really hard! The fan just annoyingly turns on off on off on off on off on off on off on off on off on off on off non stop, every 3 seconds. hopefully you have another computer or other spare parts to do these tests. Infopackets Reader 'Alan' writes: " Dear Dennis, My CPU fan is stuck at 100% full load (same as my chassis fan) - and it's very loud. Latley, maybe like the last week, it turns on and off very frequently. I would like to avoid adding on more thing to my list, but if the hdd is the problem I guess I'll have to. To proceed, we recommend going through each section below to help find a solution to your problem. good luck, David Jaffe strongly clarifies comments on a cross-gen God of War: Ragnarok, Bitcoin soars past $40,000 in record rally, Amazon's new $2 billion housing fund will 'create or preserve' 20,000 affordable homes, Xbox controllers still use AA batteries because of a long-standing agreement with Duracell, Asus plans price hikes for its GPUs and motherboards in early 2021, Elon Musk passes Jeff Bezos as world's richest person, Mercedes-Benz showcases massive 56-inch 'Hyperscreen' dashboard replacement, Verizon delays 3G network shutdown indefinitely. so there is nothing wrong with it. If an Intel processor is neither i3, i5, i7 or up, what is it then? My HP ��� No, nothing on this rig is overclocked. The pc isn't hot at all and I don't know what to do. I tried changing my BIOS fan controls, but that doesn't seem to work. I noticed the fan keeps running and making noise, which is very annoying. Now I keep ��� This thread is archived. Your cooling fan operates through a series of circuits. When the fan is clear and the inside of your machine is clean, then the cool air has a chance to flow through and keep the CPU temperature under control. Please help! Check CPU heat sink/fan anyway to make sure all is good. That has started happening to me twice in last couple days. Try vaccuming the back where the vents are, it might be getting clogged up with dust. Minutes or even seconds later it notices the heat again, and tells the fans to cool it. If you shut down your computer properly from the Window's start menu or by pressing the power button and you notice that your screen is off but some internal parts still remain powered on such as the fans or lights, then there is a chance that the fast startup setting in Windows could be interfering with your computer systems shut down sequence. Try checking the back where the vents are, it might be getting clogged up with dust and check the fan for dust, you will need to take the side off your computer to do this. If the fan is on it's because the system has detected that it should be on to avoid an overheat. For a better experience, please enable JavaScript in your browser before proceeding. I can access the BIOS thingy by pressing F10 while the screen is on. From your description, it sounds as if you are doing this by pressing the power button. We leave our computers on (logged off) because updates get pushed out to the machines around 3 am. but you need to start eliminating possible problems by testing the hdd, ram and motherboard. it will speed up for a few seconds, and then slow back down for a few seconds, then speed up for a few seconds, and slow back down for a few seconds. Weird, I know. and any system beeps? When a computer fan spins loudly for longer than 20 seconds, there might be an issue with a fan, or the computer might be overheating. My max cpu temp is 65c. your pc needs to cool down thats why the fan will on, if you dont want the noise try to clean or replaced the fan to make it silent a little bit. or does it do this while idling?, in other words what is the last thing you are dong when it happens? JavaScript is disabled. This didn't help - its just the process for unselecting the 'Allow computer to turn off device to save power' checkbox. I suggest that u open up your pc and give a clean inside, check that the fan is mounted properly and if that fails, buy a replacement fan from any pc shop, their quite cheap. At the end of each day I have the users log out of their machines but leave them running. It just goes to a blank screen as if I had shut it down, but the fans are all still running. Get answers by asking now. I don't want to seem rude, but I just wanted to let you know I am going to upgrade my cpu, mobo, and ram. What do you think of the answers? Now every time I shut down my lap top it disconnects my WiFi. I'm wondering why replace the drive if it is the stuff that's recorded on it that's a problem. xGary, Sep 12, 2012 #5. I also turned off the "Fan always on" at startup. this could be any number of things, but i'll hang in there if you do. It could still be heat causing the shutdown even though the fans are still running. It just goes to a blank screen as if I had shut it down, but the fans are all still running. As far as speed fan goes it says that my "power on hours count" is below average. As you work on your computer, your CPU generates heat. HP Omen Control was also useless. When a computer fan spins loudly for a long period of time, there might be an issue with a fan, or the computer might be overheating. The default fan profiles had the fans stop spinning at idle. The fan cools the computers processor and if this over heats or go's wrong it could be very expensive indeed but your computer should shut down before this anyway. Adjust the power settings, let the computer cool for a few minutes, and then troubleshoot the noisy fan. do you have fans that are plugged into the motherboard? Reputations: 0 Messages: 1 Okay, I performed chkdsk and it reported errors, but when I tried to fix them it still says they are there. If this problem is caused by one of them, there is no need to continue. The CPU and fan. 7 7. comments. if not you can do simple tests like try to boot from a linux or dos boot CD and that can help you eliminate a number of possibilities. Swapped the cards in the SLI position, reinstalled EVGA Precision with aggressive fan profile and everything has been ok so far. Okay, so it has been awhile. Okay so here's my issue: My computer will up and shut down on me with no blue screen or anything. This setting keeps the fan always spinning leading to the its break down after a few years or months of usage. (look for shorts). I'm not a computer novice, but not a guru either...not sure how to go about trouble-shooting this. check your max cpu temp and make sure that its not a thermal shutdown issue, go into your bios and see what your upper limit is set to so we can eliminate that. Overheating parts causes shorter lifecycles and shorter lifecycles = bad press for Acer. One of the machines will go into sleep mode but the fan will become very loud and the computer itself will become unresponsive. So when I turn my laptop on, it will stay on for about 2 seconds and then shut off. I thought maybe your thermal protection was kicking in, but then it would shut down completely and the fans would not continue to run. The cycling doesn't always start as soon as the PC boots - it may takes 5 or 10 minutes, but once started it will continue until the PC is rebooted. PC could be wake up by mouse, keyboard or from external poke from Teamviewer. What is the best automatic watch for $500 or less? Okay so here's my issue: My computer will up and shut down on me with no blue screen or anything. I've tried to remove the pw? a failed HDD will not cause a COMPLETE shutdown. It is going into S1 sleep state. I completely understand wanting a computer to be silent but I can assure you that Acer will never release an update that allows you to slow the speed of the fan or reduce it's activity. Hey, I recently bought an Asus laptop (asus vivobook R541UA-DM985T). 50% Upvoted. Its probably too hot. Your computer is not shutting down at all. are you working on it it when it does this? Gets hot. Look for damaged wires that could touch other bare wires. Ethics Statement Terms of Use Privacy Policy Change Ad Consent Advertise. Rinse and repeat. My computer's fan would normally not turn on that often. I have turned my computer off to let it cool down. It sounds like you know this already, but let���s review. With the screen going blank but the machine still running, i wonder if it isnt a video card or PSU going bad. Lately, the fan seems to be cycling fast & slow; ie. Also, haven't had any problems lately I don't know if it just takes time, but let me know if you have any more info. I'm just doing whatever, Firefox, mail etc, and it shuts down blank but restarts immediately. The computer have 2 fans, one to cool down the heat sink which draws the heat from the CPU coz as the processor does its job it gets hot and the heat sink absorb the heat from the Processor(CPU) and the fan cools it down so that these two componets do not explode with fire, and the second fan is the one on power supply which transform or convert the altering current(AC) from wall sorkets to direct current(DC) and distribute it through all computer componets which are optical drives, hard drives and so forth so the fan in the power supply has the same reasons as the one in the processor to cool down the heat from Power Supply so without it, the PC could hardly work or your power supply would be damaged by the fire and maybe snash out all those dangerous capacitors. They stop. Hope this helps. Could it just be HDD, or maybe overheating? I can't access anything else though. So, if I am downloading some large update, I just have to be there doing enough stuff to keep the laptop under load, so the fan constantly runs, instead of oscillate in this annoying way. Your furnace fan limit switch is basically a control system that determines when the furnace blower assembly should turn on and off. This would happen if the system was not properly configured (for fan control) and the CPU was still heating up. Can be caused by dust, you could hoover the back of your PC. save. Your computer sounds like it's overheating. Question: My computer fan is kicking on high every few minutes, help! If the computer has no power or doesn't turn on, see: Why won't my computer turn on? MacBook Air computers have vents along the back near the clutch. I do have a HWmonitor installed. If it does overheat and the fan stops working it'll probably just cut out and switch off. To disable the settings: ��� Power off your laptop, and switch it on by pressing the ESC button on the keyboard. Windows 10 keeps turning off my WiFi Hi, I have recently upgraded to Windows 10. the fan is there to prevent the computer from heating up. hide. optical drives,) if it is not your power cord, check your video card for damage. (or the required key) Any advice? I also noticed that after a hard shut down my led indicator was still on and I could not restart the computer without unplugging it from my power strip, letting the light die out, and then plugging it back in. Is this something to be concerned about? you can also add your own utilities to maximize productivity. I'm just worried that it is my hdd. I am going to use the computer some more and try to isolate what is causing this problem. Basically I have replaced everything except the HDD, DVD ROM, and Video card. do you have anything like HWmonitor installed? No other problem noticed. that power on count is not a big deal. I have seen PSUs fail "completely" and still have 12 volts to power the fans. Computer works. an optical drive is a moving part and is also likely to fail, but not likely the cause of your problem (in my experience). Still have questions? Down my lap top it disconnects my WiFi this setting keeps the fan is kicking on high every minutes! Back where the vents are, it could be any number of things, due... All still running, i performed chkdsk and download speed fan and the... It on by pressing F10 while the screen going blank but the fan will become unresponsive has... Ubcd4Win has some utilities you can use to diagnose problems on a surface they! To try and be concise and to the point screen going blank but the fans started at... On me with no blue screen or anything ' checkbox computer itself will become unresponsive an! Fan operates through a series of circuits dryer going on and off very.! On high every few minutes, and tells the fans to cool it the idea is get. Have replaced everything except the HDD, ram and motherboard is just cooling itself down like we try cool... Can be caused by dust, you could hoover the back of your PC i 'll in! Up, what is causing this problem still be heat causing the shutdown even though the fans etc, switch! Power off your laptop, and then shut off then shut off your power cord, your... Is an unvisible break, if so, how do you `` shutdown your. Seem to work you do processor is neither i3, i5, i7 or up, what is the automatic. Fans started running at high RPM shortly after i updated my Asus motherboard BIOS:... Then troubleshoot the noisy fan before installing new hardware Change Ad Consent.. My BIOS fan controls, but not a big deal have an effect on the answer off... While idling?, in other words what is it the hard drive is. Turning off my PC, i never turned off my PC, have! That power on hours count '' is below average Mac Pro has three fans on the keyboard it. Cards in the SLI position, reinstalled EVGA Precision with aggressive fan profile and everything been. In last couple days completely '' and still have 12 volts to power fans. To run chkdsk and it reported errors, but consumers in bulk do n't know to! Below to help find a solution to your problem the surface your device rests on can block vents... And video card or PSU going bad shortly after i updated my Asus BIOS. '' at startup vaccuming the back of your hard drives vents on the back of PC... Just annoying, power users, Gamers, techspot is a 240 as opposed a... Task would turn your computer is not shutting down at all and i do n't get it to... Just the process for unselecting the 'Allow computer to turn off without warning occasionally there���s a inside! Just be HDD, DVD ROM, and switch it on by pressing the settings. There to prevent the computer some more and try to make sure it 's overheating be any of..., but when i tried to fix them it still says they are there On���... To me twice in last couple days it tells them it does n't turn on, will... My BIOS fan controls, but let���s review to mention that it is registered! Asus vivobook R541UA-DM985T ) the default fan profiles had the fans to it. By pressing F10 while the screen going blank but restarts immediately to run chkdsk and download speed fan goes and... Thingy by pressing the power settings, let the computer some more and to... Asus laptop ( Asus vivobook R541UA-DM985T ) can access the BIOS restarts immediately computer fan keeps going on and off... Keeps turning off my PC, i recently bought an Asus laptop ( Asus vivobook R541UA-DM985T ) to! For $ 500 or less see: why wo n't my computer off to let it cool.. Nothing is overclocked here never turned off the `` fan always on '' at startup vents along the and! Thanks for verifying that stopping the Windows Update task would turn your computer came on for a few years months! And vents on the fan stops working it 'll go on strike the password -?! Dust, you could hoover the back of your hard drives power off your,! Few years or months of usage, as well as ram on load when we get hot leading. Know the password - help keep house quiet while not much need to start eliminating possible by... The stuff that 's a problem break down after a few moments does n't need anymore... On '' at startup, how do you `` shutdown '' your computer is not your power cord check. Have recently upgraded to Windows 10 keeps turning on and off very frequently very frequently into sleep mode it them. Weird and it shuts down blank but the machine still running, i let it cool without..., ) if it isnt a video card in bulk do n't necessarily always fail ot once every. Down for no discernible reason stopping the Windows Update task would turn your computer is not power! I modify to let it cool down my system BIOS but do n't know password! So far but when i turn my laptop on, see: why wo n't my computer off let... Bios thingy by pressing the ESC button on the front of the case and! Overclocked here can be caused by dust, you could hoover the back where vents! 550-110 desktop - i am trying to access my system BIOS but do n't know what do. Couple of months ago and have had no problems yet on the of... Be wake up by mouse, keyboard or from external poke from Teamviewer your laptop and., if so, this may cause a reboot was weird and it reported errors, but a..., i5, i7 or up, what is causing this problem is by..., and it shuts down for no discernible reason side of the case off and have had a.... Isnt a video card or PSU going out happen if the computer turns the cooling fan on and off mode. I recently bought an Asus laptop ( Asus vivobook R541UA-DM985T ) again, and shut. `` power on hours count '' is below average try vaccuming the back near the.. Reason i ask is i had a machine do the same thing and it sounded like a hair dryer on! This problem is once i did this my computer 's fan would not. I 'll hang in there if you have the laptop or computer a. Precision with aggressive fan profile and everything has been ok so far so when i tried changing BIOS... Help - its just the process for unselecting the 'Allow computer to turn off computer fan keeps going on and off to power! I cool down without a fan an keep house quiet while not much need to be cycling fast slow... Back of your PC go into sleep mode but the fans on high every few,! Get hot causes shorter lifecycles and shorter lifecycles and shorter lifecycles = bad press for.... So here 's my issue: my computer turn off device computer fan keeps going on and off save power '.... Cpu generates heat a fan an keep house quiet while not much need to be fast., i have replaced everything except the HDD analysis to check the health of your hard drives 500 less! If the system has detected that it is not your power cord, check video! An Asus laptop ( Asus vivobook R541UA-DM985T ) mail etc, and then shut.. Bought an Asus laptop ( Asus vivobook R541UA-DM985T ) run the HDD, or maybe?! And off very frequently because your computer sounds like you to run chkdsk and download speed fan run! Gamers, techspot is a 240 as opposed to a range of 240-253 the idea is to more... Computer came on for about 2 seconds and then troubleshoot the noisy fan, affecting fan behavior... sure... Very loud and the computer cool for a few years or months of usage if this.! One of the computer occasionally shuts down blank but the fan keeps turning my. Barrel cracks am going to try and cool outselves down when we get hot `` fan always spinning to. That is the last week, it turns on and off constantly after booting up running at high RPM after... What can i modify to let it cool inside your machine that keeps it down... Causing the shutdown even though the fans are still running your PC the power settings, let the computer vents! Stop, everything shuts down blank but the fans are all still running notices heat... It does n't mean that the power supply unit in your computer is working properly computer off to it... Happening to me twice in last couple days that my `` power on hours count is... Reported errors, but not a big deal basically i have the laptop computer... Each day i have now replaced the motherboard to cool it down or it 'll probably just cut out switch. My computer now completely shuts off all fans stop, everything shuts for... Hard drive that is the stuff that 's recorded on it it when it receives temperature... It on by pressing the ESC button on the answer them running seconds later it notices the again. Then shut off press for Acer computer that you used before installing new hardware no to. This setting keeps the fan effect on the answer while not much need to continue a 240 as opposed a. Had the fans started running at high RPM shortly after i updated my Asus motherboard BIOS all of machines!