However, a single dimm in slot #4 works. when the power was switched on, the fans(cpu and psu) spin and then stop. (The power light is on on the motherboard but when powered up the CPU fan spins for one second then stops). Computer Building: 1: Oct 8, 2020: R: Question Monitor went blank while playing a game. 07:57 PM I had another spare GPU to test if the motherboard was fine and it booted up properly. Opened the case. Computer Building: 3: Oct 28, 2020: J: Question Windows Starts Inconsistently, All fans stop when Windows loads then starts up again. Whenever I start up my laptop I checked the bottom of my computer and both of the fans spin at a decent speed for about 2 seconds and then they both stop spinning, the other fan will spin at other times but the GPU fan never spins, and whenever I launch a game my laptop overheats whenever I play for 5 minutes. Upon booting, PSU fan and CPU fan again spin for a second and then stop simultaneously. Ask the community. Bought a PSU tester and everything passes on the PSU. Thank you for the ideas. BUt once it hanged . Attempts to boot with 1 dimm in slot 1 fails, (the BIOS does not load). But that's assuming some wayward setting is causing the fan to stop … After this I did a bit of fiddling with the power button jumper. Posts : 36,805. windows 10 professional version 1607 build 14393.969 64 bit New 26 Nov 2019 #5. But the start button light remains on. I powered off the system. 08:12 PM. I tested the PSU with a purchased PSU tester. They all passed! Thanks for the idea, I took the motherboard out of the case and it still would not start. - I dusted the case, (it was not that bad anyway). The system won't boot further than this, ie: I don't have a chance to access the bios menu. Computer fans can get pretty noisy, but there are a few things you can do to reduce the din. Thanks for your help. I powered off. Disconnect all SATA devices. I thought I have ruled out everything, so I am a little lost. The motherboard shows the dimm slot numbers. I took out the power supply and tried it on another motherboard (without any other loads). Same fan issue persisted. Try each memory module in each memory slot. I powered off the system. No change. The replacement PSU lacked a 2nd 'P4 12v' connector for my video card (Radeon HD5770). This time the fans ran at top speed! I was facing the same (or similar) problem about a month ago. 07-13-2018 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. I proceeded running through several tests loading differnent dimms into different slots followed by power on. The previous post was right, if you dont plug in the 4 pin cable from the power supply it does start the fan and stop.These 4 pin come with some Antec power supplies. 07-01-2018 I am in the process of building a computer and ran into a snag. Once it realizes what the temp is it stops spinning because there is no heat or not enough heat for the fans to spin. Sounds like(if I am following your memory troubleshooting steps correctly) you may have some bad memory slots (MB problem) if each stick of memory works in slot #4 but not in slot #1. A 2010 PC is prone to component failure after about eight years of service. this action keeps repeating. Is it set to the correct line voltage?In the US, it should be set to 115/120.You can power up without the RAM installed and see if you get the no RAM POST beeps from the system.Without parts to swap, there is little else I can suggest you check.Chas. Run ... How do I stop Skype from always starting when I boot my Windows 10 Pro system. Maybe the powersupply is on its way out? I've built PCs in the past and stuff but I don't really want to open it up unless this is pretty much guaranteed to work as I do not want to void the cover on it for him but he has assignments due in very soon and needs access to itUPDATE: We opened it up and the 4 pin power connector was connected. My computer was working fine, put it to sleep for an hour came back and it wouldn't start. I powered off the system. Your PC may trouble you when it does not start up correctly the fan spins for a few seconds and stops. Pros couldn’t find anything wrong. Simply ask a new question if you would like to start the discussion again. Tried turning on the PC again. 11 years ago I've searched through the threads but i am still unsure of what my computers problem is. Everything else works fine in my PCEven when during intensive gaming when temp exceeds 85°C the fan won’t spin. I tried a different power cord. PC startup problem: PC startup problem 3. If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. I have attempted to unplug everything except the … the fans will spin for a second then stop. I removed all of the chassis cables except the power switch and tried to flip it in case it was in backwards. 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. Fans start then stop. I do not get any POST beeps. I have a new Windows 10 gaming machine I had built for me back in July. Change the CMOS battery and see if it works. Any advice on fixing the boot path problem? I dont know what to do. Powered on confirmed that the PSU fan was working ok. The CMOS has been cleared and I removed the motherboard and put it back in with new screws and standoffs. Adjust the power settings, let the computer cool for a few minutes, and then troubleshoot the noisy fan. System boots, fans spin, system restarts, fans spin, system restarts, fans spin, etc. If you're new to the TechRepublic Forums, please read our TechRepublic Forums FAQ. It would spin and the RGB would light up on startup, then after a second it'll stop spinning and the RGB would turn off. It seemed to work fine. I have attempted to unplug everything except the CPU and RAM from the motherboard (I did leave in the CPU power cable, the front power switch, the heat sink, and the CPU fan cable). You could try replacing the CR2032 motherboard battery. Or were some standoffs shorting the power supply?? CPU failure is low unless you have recently reinstalled the CPU or have messed with the CPU in any way. During gaming GPU z shows fans speed % ~ 70-100% but RPM is always at 0 (gaming or idle). Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Help Right now its working. A recent Windows 10 update restarted my system. Thanks for the info. Boot error showed "ERROR: System Fan Has Failed.Service PC to prevent damage to the system.Press to continue". Does the same thing, CPU fan spins for half a second and stops. Same sypmtoms - I replaced the service fan. Tried turning the computer on again, by using screw driver to short the power switch pins. Thanks. after this the PC started. I did not mean external to the computer, but, but rather directly connected to a +12 (or +5 depending on fan spec) voltage point elsewhere inside the computer. Was convinced it was the mobo so we bought a new one. Then put the cable back into it and the original symptoms occured. Here is what is happening.When you press the power switch, the motherboard sends a signal to the power supply to turn on.As the voltages come up, additional circuitry on the motherboard and in the power supply check to see if the voltages are within specified limits.If all is good, the power good line changes state and the power supply keeps running.You have the power starting up, but no power good signal.The best thing to do, is use a power supply tester to verify that the power supply is good. Both service and cpu fans spin briefly then stop.. then this repeats on and on. Power on issue: system and cpu fans start briefly then stop.... Power on issue: system and cpu fans start briefly then stop. Run a checkdisk if you can get Windows to load. I removed it and everything booted up but no visual display or seemingly no activity. At this point, I've removed the video card, and still get the problem. Try a known good PSU. A good set of fans can keep your computer from overheating, but they can also make your computer sound like a wind tunnel. If it spins, then the problem could be the motherboard or power supply unit. Powered the system on. Reboot as needed to test. I am going to assume it is either the MOBO or the CPU (my guess from both of the comments I received is that it is the MOBO and I'll see if I can send it back. Let me try out your suggestions. ... voltage gets below 2.6V then there is a chance that the settings can become corrupted which can prevent a normal start … The fan spins for a second or two when first switched on but then switches off. Reboot the PC after each of the following recommended troubleshooting steps. You can also use a known working fan and plug it on your motherboard. I tested it outside the case, I tried a switch from an older computer, I took everything out that wasn't needed, I switched my custom CPU fan with the stock Intel. Notice the CPU fan spins for half a second and stops. I also tried another PSU. But since then sometimes the computer starts sometimes it doesn't. Removing the MOBO from the chassis and applying power would confirm this. Fan issue persisted. Opened the case. All submitted content is subject to our Terms Of Use. Replacing the standoffs may be an issue. CPU= AMD 3700+ (ada3700bnbox) mobo= Asrock 939s56-m When switched on the fans all spin … My computer wasn't starting. - I dusted the case, (it was not that bad anyway). If still no luck then the power supply is the most likely suspect and then the MOBO. 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. I removed all the RAM and powered on. Disconnect all peripheral devices except for the mouse, keyboard, and monitor. Then after at most 3 seconds, the power supply shuts down (both fans stop). Thanks for your help, but it has been a long two months and I am still stuck. Laptop users will need to test on a different computer. The power supply fan starts and the CPU cooling fan starts. Same behavior. 07-01-2018 Building a new computer and after hooking everything up and trying to start it up for the first time all that is happening is the cpu fan spins for less than a second. † The opinions expressed above are the personal opinions of the authors, not of HP. Please note: Do not post advertisements, offensive material, profanity, or personal attacks. - I replaced the service fan. No such thing on all my previous single processor machines. NOTE: the PS LED light is solid green. My search for an answer led me here, but this was a dead end. I dusted out the original PSU and re-installed it. I unplugged all cables from the motherboard and all power cables from fans, HD, CDROM. ... Be gentle while cleaning the computer, note the fan-filled with dust. Powered the system on. I have returned the CPU and the Motherboard, both are new. Your situation may be a unique convergence of a coincidental hardware failure happening after a W10 update. Microphone Only Picking Up Output Sounds (Desktop Audio). The previous post garnered expert advice, so I am hoping someone will have some idea on what I can do. Disconnect the USB 2.0 card reader. It did lead me to realize it was a power problem so I reread my power manual and 45 frustrating minutes later I found that there is an extra 4 pin power connector next to the processor on the mb! When I go to hit power, the fans spin a second and then stop. Installed 1 DIMM, powered on and finally the computer BIOS loads! Were any providing a ground to the MOBO?? Once back on its speed is what it used to be and is almost silent. Thanks for all your help. I like to replace all the standoffs with nylon or plastic ones to eliminate this possiblity. Both service and cpu fans spin briefly then stop.. then this repeats on and on. I replaced the PSU (stratus 400w, DPC-ATX-400). If I restart or put it to sleep the fan goes right back to its high speed once the power is back on. The Motherboard green light is on, but other than the cpu fan spinning for a second I get no other signs of anything starting. I am setting up a new machine tonight with the same processor and had the same exact problem. By using this site, you accept the. When I hit the power button, the cpu and gpu fans spin up and them immediately stop. The PSU tester shows everything as good. Computer won't turn on. The memory was also removed and each piece was tried in each slot. fyi. Any error messages? From start to finish: How to host multiple websites on Linux with Apache, Checklist: Managing and troubleshooting iOS devices, Understanding Bash: A guide for Linux administrators. Typically you don't want a CPU to go over 70 degrees, so make sure that your fan runs fast once it gets that hot, and preferably starts to … Rechecked the cables and plugs a million times, cleaned off the CPU and fan. Start by Cleaning Your Computer's Fans . Powered the system on. The systems is pretty old (purchased 4/2010). Thanks, your right, it was that. The only thing that has worked is after booting, is to log into windows then shut it down through the start menu. PC won't boot, fan starts and then stops What a nightmare, ... My Computers zbook. Tests loading differnent dimms into different slots followed by power on the “ new ” computer.... My computers problem is with your fan hardware failure happening after a W10 update my computer was ok... Failure after about eight years of service then the problem while cleaning the cool... Check the voltage switch, but no visual display or seemingly no activity you narrow. 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A diag test ( F9 ) for each dimm using slot # 4 works be and is almost silent..... On using the Windows Recovery Environment to fix system corruption BIOS menu the hard drive tests are ok but boot. Auto-Suggest helps you quickly narrow down your search results by suggesting possible matches as you type working fan plug... Pc is prone to component failure after about eight years of service known fan... But may not eliminate this possiblity running through several tests loading differnent dimms different... Good to narrow it down.That was a dead end © 2021 ZDNET, a single dimm in 1. Setting up a good PSU from someone and it still would not start i press the menu!
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