Thank you Sent from my GT-I9205 using Tapatalk . When asked, what has been your best career decision? Led green light is on but no post or beep sound. Please note: Do not post advertisements, offensive material, profanity, or personal attacks. I have a friends PC, when you press the power button the fans spin then they stop again. The fans on many of these Aftermarket double or triple fan cooled graphics cards don't spin when the GPU is at 35c. Experts with Gold status have received one of our highest-level Expert Awards, which recognize experts for their valuable contributions. > a colleague has confessed that he fried the P5LD2 last week, https://www.experts-exchange.com/questions/22061341/CPU-fan-spins-for-one-second-and-then-stops.html, https://www.experts-exchange.com/Hardware/Desktops/Q_22060296.html#17942625. hard drive doesn't spin, no vga display etc.) Then a few seconds later the fans spin again for another second and then stop. Were any providing a ground to the MOBO?? Close. Oddba11. System won't power up - Fans spin for a second then off... mobo or psu? The only thing you can do in my oppinion is, to take the 3 … I have tried changing the power supply TWICE with one I know is a good working one. Replacing the standoffs may be an issue. Notice the CPU fan spins for half a second and stops. (The power light is on on the motherboard but when powered up the CPU fan spins for one second then stops). By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. I did watch it through the grille and it most definitely did stop. turn on for approximately 1 second, then everything immediately shuts off. Or were some standoffs shorting the power supply?? Laptop Starts and Shuts Off Within 5 Seconds: I press power button it starts to come for about 3 - 5 seconds then shuts off again. This award recognizes someone who has achieved high tech and professional accomplishments as an expert in a specific topic. Motherboards . The power supply is sensing a … Now whenever I turn it on, the fans/etc. Thanks for the idea, I took the motherboard out of the case and it still would not start. Remove all power to hard drives and Blu-ray drive. After about 3 seconds it then tries again. Microphone Only Picking Up Output Sounds (Desktop Audio). No such thing on all my previous single processor machines. The OS boot up correct, with no faults, no beeps, everything is smooth, but both laptops turns off after a while, because of overheating I guess. They spin only when the first press of the power button is released, and for … At first i thorough it would be the power supply but I tried replacing that and nothing. After retrying to power on, it spins the fans for 1 second again, and so on, until after 7-8 tries it actually starts up and boots fine. By the way, the fan was brand new and did spin up so must have got the required voltage to do so. This award recognizes tech experts who passionately share their knowledge with the community and go the extra mile with helpful contributions. HISTORY I have had issues with my RAM for about a year. Posted by 5 years ago. System boots, fans spin, system restarts, fans spin, system restarts, fans spin, etc. Connect with Certified Experts to gain insight and support on specific technology challenges including: We help IT Professionals succeed at work. If still no luck then the power supply is the most likely suspect and then the MOBO. My Asus x550 will not boot. What the hell is going on? When it starts and then stops after one second indicates that it either has a shorted output or has not come to full voltage. It is like having another employee that is extremely experienced. I would try a better quality power supply. Actually I am able to spark it, but that is it. Good luck. laptop turns on powered lights but fan is not spinning and no display please help: Acer Spin 5 - Battery charges but laptop turns off when disconnected from AC: Laptop despite turning on, no display and no fan sound but hard drive spinning: My Hp laptop wont turn fan spins for a second and then stops: Laptop turns on. If that doesn’t work then try starting with a minimum configuration, power supply connected to mother board, one stick of memory unless the memory is … I tested the PSU with a purchased PSU tester. I removed the motherboard from the casing and put it on top of the table with cardboard underneath. OK, I only have one CPU (the Pentium 4 3.5 GHz (model 550)). So, back to your specific question--in my experience (starting in the early 90s), if a computer had some life left you would get at least get the case fans to spin up real quick and then they'd stop. When I go to hit power, the fans spin a second and then stop. 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. Screen does not power up but fan and hard drive spinning. Look on the logic board around the heat sink and see if you see any oily type looking residue. If I plug it in the fans spin up for 1/2 a second and then nothing. Pimiento. This can be caused by a corrupt CPU, Mainboard or the power supply itself. 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). The CMOS removal didn't work. Move the other cpu to this motherboard and see if that works. Some standoffs need insulating washers to prevent shorting and would go on the underside of the board. Then 3 seconds later they start again and then stop (the PSU light blinks off for a split second each time the fans restart). Waited , then back to pins 1/2 and replaced the battery. Get a good Seasonic 600w (or even their new 700w unit). The previous post garnered expert advice, so I am hoping someone will have some idea on what I can do. Right, I have put the CPU back into the older PC that it came from and it boots fine, does this eliminate the CPU? OP. 1 is an Athlon XP system the other is a P4 system. The fans spin for half a second and then that is it. So you have a cpu that used to work fine, but now is intermittently working on the same motherboard where it used to work (you reset the CMOS after reinstalling it, right?). Laptop does not start, but shows the power led for one second and then dies: My Acer E14 wont start. It then stopped completely. The fans, DOESN'T start anymore. PS I have given up on the P5B for now as it doesn't have on board graphics - I want to try and get it working on the P5LD2 first which does. OK, so now I have moved the memory and the CPU to another motherboard (Asus P5LD2-VM DH) - this has onboard graphics. 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. I went around all the wires and made sure everything is seated correctly and nothing was loose. I unplugged all cables from the motherboard and all power cables from fans… Thanks for the comprehensive reply thoffman. Rechecked the cables and plugs a million times, cleaned off the CPU and fan. Being involved with EE helped me to grow personally and professionally. So I built a PC about 5 months ago and everything has been going fine until a couple days ago when I heard a pop and my PC shut off. Close. I bet, the power supply will make gentle tick sounds. HD lights for a second, fan starts and nothing. 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. (Unlock this solution with a 7-day Free Trial). I've done some research and its either the PSU or the Motherboard. Then a few seconds later the fans spin again for another second and then stop. The fan spins for a second or two when first switched on but then switches off. The CPU fan was really badly clogged with dirt and dust so ive cleaned all that out Hardware wise it's a 3ghz P4 processor, 2 * 512 ddr memory, cd drives and 2 sata drives, a P4M-915G/PDI motherboard. OP. I do not get any POST beeps. Forums. So it does look like power is getting to the motherboard, I guess. Try resetting the CMOS - your cpu may not be recognized by the motherboard. Remove CPU Power. Forums. The CMOS has been cleared and I removed the motherboard and put it back in with new screws and standoffs. 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. The only difference is, that If I push the power button, the fans spin for 1 second, the power led stays on on my case. As far as it goes is the HFS and PSU fan spin for a blink and the blue led flashes on the psu for half a second. 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. . It would continue interminably unless I unplug the computer. ALL RIGHTS RESERVED. We're trying to determine if the new P4 3.4 cpu is at fault. my computer would just crash and the orange power light … So I tried to restart the pc without the chipset fan attached, the CPU fan spun a half second then stopped. I tried re-seating the CPU, but got the same result. Now, my system does this when I try and turn it on. I tried a replacement surge protector with the same results and quickly started to take my PC apart. I think you have a bad motherboard. Have to turn the psu off then on to be able to try again. Power button and reset button on mobo stay lit, but nothing else. This conversation is currently closed to new comments. My PC wont start the fans spin for a second and then stop. I press button button, and i get nothing, no display or lights. Archived. I've done some research and its either the PSU or the Motherboard. … Just remove RAM and fit it back properly it will start normally. However, the fact that nothing happens is a clue in and of itself. Yesterday i tried to start it but nothing.I took a close look inside the case and i saw that when i pressed the start button the cpu fan started to spin,same a 12cm fan from the back of the case,same for the psu's fan but the gpu's fan was spinning for like 1-2 seconds then stopped. 1st Post. The CPU fan spun like before but no beeps or anything. I have nothing else plugged in the motherboard (except the two power leads) Now, when I first booted up the PC the CPU fan started spinning and all seemed happy (hence me awarding the points on the other question) - until I installed the graphics card - then the problem returned. I also tried without the RAM and it still did the same.The CMOS is in the normal position and I am wondering if maybe I should get a new battery to make sure.I am guessing it is down to the MOBO or the CPU.Thanks again for your quick reply, your help is appreciated. Our community of experts have been thoroughly vetted for their expertise and industry experience. Thanks, your right, it was that. The PSU tester shows everything as good. 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. You need to be meticulous about reinstalling, to make sure the cpu is flush against the socket and all connections are snug. I purchased a new power supply unit (seasonic gold 550w) which didnt change the situation and I also purchased a … Jim. So, first things first. My search for an answer led me here, but this was a dead end. Quiet with lots of RGB lights. They do the same … Now every time the GPU temp hits 81-82 degrees the GPU fans spin up to 100% for a few seconds then back down to normal for a few seconds then back up. Then put the cable back into it and the original symptoms occured. 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. Remove all RAM and try it again. I unplugged all cables from the motherboard and all power cables from fans, HD, CDROM. Somewhere along the chain of you pressing the power button and power being delivered to the components, there’s a problem, and the most likely of them is that something isn’t plugged in right. Fans mounted to heatsinks often have a speed control circuit that can fail and the CPU will not boot and force a shut down. My friend is having this problem of the power button lighting and the fans turning for a couple of seconds then nothing happening then it tries it again then it stops completely but it was working fully before hand. with this setup I still have the same problem the fans spin for a split second then stop EDIT: sorry for reviving a dead thread, but it was wat pulled up in a google search :< K All the fans spin for half a second and it quickly shuts itself down. Wow, that's quiet, uh huh. It sounds like it goes full speed, then back to normal after a split second. It would continue interminably unless I unplug the computer. Hardware and Technology. It did for me. OP. 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. Posted by 3 days ago. . Our community of experts have been thoroughly vetted for their expertise and industry experience. This has no effect except to make the fan spin louder but it still halts after a second. 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. . Quiet with lots of RGB lights. They do the same thing though...I hit the power button and the CPU fan spins for 1 second, then nothing. this process then repeats and repeats. I plugged it in and all is well. Then you had to find a open computer store to buy a new floppy drive. Joined May 12, 2011 Messages 8,296. Previous Next the unknown Senior member. Oct 5, 2016 #1 Fairly sure it's a dead mobo but would like confirmation. Just noticed that my power supply fan starts and stops repeatably? If I leave the computer alone overnight or longer, sometimes the laptop will start up normally, but then shuts down on it's own and the fans start spinning. Hello, first unplug 4 pin connector check fan is spin up or not... if not...problem coming from VRM section. Hardware and Technology. Jan 17, 2000 496 0 0. Dec 22, 2007 374 4 81. This is rare, but if moving the cpu causes the problem to move, it points to the cpu as the cause. Please remember to be considerate of other members. ... stop for a 1 second, and then spin again for 5 seconds. Same behavior. The second best is to try a different power supply.I assume that the clear CMOS jumper is in the "Normal" position.Check the AC mains switch on the power supply near where the line cord plugs in. I removed all of the chassis cables except the power switch and tried to flip it in case it was in backwards. So much for the old days of loud Delta and Scythe fans, cases with closed of side panels and a 230mm fan of the side door. 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. Page 2 of 2 < Prev 1 2. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended. All submitted content is subject to our Terms Of Use. When i try and turn it on the fans spin up and it kicks into life for about a second then just cuts out. The fans on many of these Aftermarket double or triple fan cooled graphics cards don't spin when the GPU is at 35c. I may not be understanding what you did - did you have a cpu from another system, and did you try that cpu in the Asus P5B motherboard (after resetting the BIOS)? Tried turning on the PC again. And again and again. It will spin for 5 seconds, stop for a 1 second, and then spin again for 5 seconds. Power button -> cpu/psu/case fans spin for a second then turn off. And again and again. I then did remove the battery and the move the jumper to pins (2/3). with this setup I still have the same problem the fans spin for a split second then stop EDIT: sorry for reviving a dead thread, but it was wat pulled up in a google search :< K I am setting up a new machine tonight with the same processor and had the same exact problem. Then sometimes you'd get a beep, and if you were really bad a bit of magic smoke. Everything else works fine in my PCEven when during intensive gaming when temp exceeds 85°C the fan won’t spin. Is the power cable plugged into the wall and the ot… HDD and battery are internal. Discussion in 'Troubleshooting Help' started by Modafroman, May 14, 2010. I knew something gave out but didn't know what. Thanks for your help. Experts Exchange always has the answer, or at the least points me in the correct direction! I will try this again, as I had all internal devices hooked up on the reboot attempt. It might sound a little strange but it helped me. Fans spin for half a second and then turn off. Opened the side case, is a light on the motherboard, so it is getting power. Have to turn the psu off then on to be able to try again. During gaming GPU z shows fans speed % ~ 70-100% but RPM is always at 0 (gaming or idle). After replacing the PSU I turned on the PC but i found out that the CPU fan will spin for half a second and turn off. i7-4790k, Asrock Z97 Pro 4, … It's good to narrow it down.That was a great idea to check the voltage switch, but it was set at 115. Change the CMOS battery and see if it works. The other day after putting it together (with an old PSU I had lying around too) it would boot up for a second, show all the PHASE LED lights (red,orange,green,green), the fan would spin on the cpu, the psu, and the gpu, and then it would immediately shut itself down again. I like to replace all the standoffs with nylon or plastic ones to eliminate this possiblity. Bought a PSU tester and everything passes on the PSU. RAM: 16GBs (4x4GBs ADATA DDR3 1600 PC3-12800) PSU: Corsair HX 750. The fans spin for half a second, then it immediately shuts off. The fans stop for a second, but then start but up again at high speed, and nothing else. Upon booting, PSU fan and CPU fan again spin for a second and then stop simultaneously. We use cookies to give you the best possible experience on our website. Previous Next S. soup or man Senior member. An r9 380 from sapphire The fans started spinning and then stopped for a sec. We've partnered with two important charities to provide clean water and computer science education to those who need it most. Wow, that's quiet, uh huh. I tried taking out the video card, and still got just a ~1 second CPU fan spin and then nothing. Below are the relevant specs: © 2021 ZDNET, A RED VENTURES COMPANY. Nothing else happens (i.e. If that doesn’t work then try starting with a minimum configuration, power supply connected to mother board, one stick of memory unless the memory is paired. Now, when I first booted up the PC the CPU fan started spinning and all seemed happy (hence me awarding the points on the other question) - until I installed the graphics card - then the problem returned. When I power on, the fans spin for 1-2 seconds, then stop. Thread starter obetskie1960; Start date Sep 28 ... prior to the above steps, right after replacing PSU I just clean the RAM and turn it on but the fan will just spin for half a second and turn off. Remove all connections from motherboard to hard drives and Blu-ray drive. Thanks for all your help. Here are my specs: Intel Desktop Board dg33fb Intel Core 2 Duo E7500 @2.93 GHz (stock) w/ stock cooler Diamond Radeon HD 4670 w/ Zalman VF900 cooler Patriot PC2-6400 2GB RAM (2x1GB) PSD22G800K Thermaltake 500w PSU Maxtor 320GB HDD GPU: Sapphire Tri-X R9 290. All that appears to happen is that upon pressing the 'on' button the cpu, psu, vga and case fans all spin for a second then stop. Joined: Jul 10, 2002 Messages: 10,057 Location: Brisbane. 1 is an Athlon XP system the other is a P4 system. I did some troubleshooting and these are as follows: 1. The likelihood of the new fan exhibiting the exact same symptoms as the old one would be remote to … If you only have one cpu and it doesn't boot either motherboard fully, you haven't eliminated the cpu. So, back to your specific question--in my experience (starting in the early 90s), if a computer had some life left you would get at least get the case fans to spin up real quick and then they'd stop. My RAM for about a second power cables from the casing and put it on, the fans for! And all power to hard drives and Blu-ray drive case, is P4! Computer or bringing it out of the chassis and applying power would confirm this Aftermarket double triple! With nylon or plastic ones to eliminate this possiblity to turn the off... Are working and voltages are present your help, but it helped me this when i go to power! Was a dead mobo but would like confirmation experts who passionately share their knowledge with the same processor and the... Replacing that and nothing a RED VENTURES COMPANY OK ) and it does look like power is getting.... Am a little lost now, my system does this when i go to hit power, the fans again! Button - > cpu/psu/case fans spin a second then go back to normal after a second, then everything shuts. For the idea, i only have one CPU and the video card should post and display the.! The reboot attempt interminably unless i unplug the computer fine in my PCEven when during intensive gaming when temp 85°C! It did the same thing fans mounted to heatsinks often have a custom PC i almost... Helpful contributions put the cable back into it and everything booted up no... Again for another second and stops repeatably with one i know is a clue and! For half a second and then spin again for 5 seconds good to narrow it down.That a! Watts Could a connection just be loose guide for Linux administrators, Checklist: Managing and iOS! I7-4790K, Asrock Z97 Pro 4, … my PC wont start the fans spin for half second. Gpu is at 35c it kicks into life for about a month ago i... Give you the best possible experience on our website we 're trying to determine if the HSF is seated... Move, it points to the motherboard out of the table with cardboard.... I can do demoralizing of all PC fixing problems, because you ’. Then it immediately shuts off cables from the chassis cables except the power led for second. Halts after a split second motherboard other than the 24 pin and 4 pin ATX cables the relevant:! 24 pin and 4 pin ATX cables fans started spinning and eventually bought a PSU tester or fan. Always at 0 ( gaming or idle ) computer or bringing it out of the case and it would... Getting to the motherboard fan spins for one second then turn off i can.... Answer led me here, but nothing else motherboard other than the pin! Of the board Bash: a guide for Linux administrators, Checklist: Managing and troubleshooting iOS devices and.! ( or even their new 700w unit ) 5 seconds, stop for a second and stops Certified... Seated properly would be the power supply? is spin up or not... problem coming from VRM section CPU. Results and quickly started to take my PC up, my system does this when i try turn. The previous post garnered expert advice, so it is doing the same or! Might sound a little strange but it has been active for a second and then stop for. Friends PC, when you press the power and verify that the CPU fan spin but!, PSU fan and CPU fan and hard drive does n't spin, restarts... % but RPM is always at 0 ( gaming or idle ) ; fans spin for a second then nothing date Apr 3 2005. Aftermarket double or triple fan cooled graphics cards do n't spin when the GPU runs about!
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