You can check your computer manual to find where this jumper is located. Try disconnecting the wire for the power switch and start it 'manually'. Just all fans running and silence, This is not recommended for shared computers, Hackers start exploiting the new backdoor in Zyxel devices, Learn the complete Six Sigma structure with this training that's 98% off, Get 40% off Malwarebytes Premium and Malwarebyes Teams, http://www.lmsdata.com/pages/products/Power%20Supply/X750.html. This is the second time I've put together the build and it has the same problem, the first time I sent the motherboard back, they sent an email back saying it was faulty within warranty. https://www.asus.com/us/Motherboards/PRIME-B250M-A/HelpDesk_CPU/. But lately, startup has been completely terrible for my computer. You did not specifically say if you had a power lamp on the mainboard or if it was lit or not. This sounds like the power supply has failed. If you have a power-on lamp on the mobo (some retail units don't), is it lit or dark? Same sypmtoms persist. 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. Sometimes it happens when I'm playing a mmo that takes up a lot of cpu, which used to be normal, but lately it kicks on when I hardly have anything running and have only had my computer on for about an hour or so. That means that the power from the PS is not even reaching the BIOS chip in the mobo. Same sypmtoms - I replaced the service fan. Turn on on PC If you still have the same issue where just the fan spins and no beep then start looking at power supply. (Can't believe it could be anything else) I've double checked processor is seated correctly and made sure there's not too much thermal paste. I know that the PSU and CPU fan are good - I have installed with another motherboard and all works perfectly. - I dusted the case, (it was not that bad anyway). It really wouldn't hurt to get a power supply tester; it can save you hours of head-scratching. This is where a power supply tester is invaluable. The 5 volts is good, ie the LED on the mOBO. Now when I turn on the PC it won't even get to BIOS, my monitor turns itself off and the CPU fan cuts out after 5 seconds. Rechecked the cables and plugs a million times, cleaned off the CPU and fan. Of the two, rarely does a CPU fail. The cause of this may or may not be your power supply; in the majority of cases, if the mainboard (mobo) is getting power and fans are running, the power supply is good. Computer won't power up ---- no green light, no fan activity by byroncherry Feb 24, 2006 9:26PM PST. In other words, remove … PC won't boot - No video, no beep, but fans spin Mini Spy. Notice the CPU fan spins for half a second and stops. If you have a power-on lamp on the mobo (some retail units don't), is it lit or dark? The alternative motherboard I'm using currently uses a different chip so I can't test but I might just bite the bullet and buy a new processor and see where I go from there! I have only had one in all the years I have been doing this. Re: Computer Won't Start, Fan on Full Blast Jump to solution Have similar problem and just posted a new thread on it: Power supply test - on button . It looks like a small, silver coin about the size of a nickel. After it turns off and on repreatedly for about 30 seconds (4 seconds on- 4 seconds off- 4 seconds on -etc), there are 2 short beeps made by the computer. The computer beeps every few seconds. A tester with an LED readout will do that. Related: Computer wont turn on fan runs loud; Computer fan loud no display - Best answers; Computer fan loud and won't turn on - Best answers; Computer won't turn on fan runs loud - Forum - Hardware; PC unable to boot,but fan is running - Forum - CPU/Desktop I have also received a replacement motherboard from Asus so I'm assuming the board isn't the problem. This might be the most demoralizing of all PC fixing problems, because you don’t have much to go on. So as of about a week ago, 3 of 4 of my case fans have decided that they no longer want to spin the first time I turn on my PC. That is bad forum etiquette and will not get you an answer any quicker, quite the opposite in fact. Have tried with and without RAM installed, and have tried RAM in each slot. At this point the last thing I would check is the power supply; try to get another to swap out. . Hi, thanks for taking the time to respond. Several functions may not work. It … Did you try this, if yes, any error beeps. I have only had one in all the years I have been doing this. Opened the case. Plug your tablet, laptop, or desktop directly into the wall if it's not already. Latest News: Hackers start exploiting the new backdoor in Zyxel devices, Featured Deal: Learn the complete Six Sigma structure with this training that's 98% off, Limited Time: Get 40% off Malwarebytes Premium and Malwarebyes Teams (Only 2 Days Left). Move the jumper to the side, wait about 5 seconds, then move it back to original position again. Also ensure that you are using the right … Both service and cpu fans spin briefly then stop.. then this repeats on and on. If you get only a dark screen, and nothing happens, one of those components is bad. Register a free account to unlock additional features at BleepingComputer.com, When I boot my pc, all fans are running, no post beep, no pc display. Let me know what happens. Now try to boot. While inside the case, remove and reseat the RAM to make sure it has a good connection. The first place to start is with the front panel connectors. If your computer isn't turning on at all—no fans are running, no lights are blinking, and nothing appears on screen—you probably have a power issue. The very weird part is, when the computer starts up, there's no beep or anything. The fans start spinning but then they stop and it restarts all over again. Press the power switch for 5 seconds (clears the capacitors). This time connect only the power supply, CPU, and one (1) only stick of RAM. Try physically removing the add on video card and hooking up your display to one of the video ports on the MB. In such cases, all you need to do is follow given steps. The motherboard is an H87 HD3 board from gigabyte. How to do it: Power down and unplug the power cable from the wall socket. You can check your computer manual to find where this jumper is located. Power down and unplug the power cable from the wall socket. If the computer still doesn't POST, then it is either the CPU or the mainboard. Open the case and remove the CMOS battery for about 10 minutes. This will reset the BIOS setting to the “new” computer defaults. Power cord is fine, f10 will not start BIOS. Edited by Joe C, 29 July 2018 - 07:38 AM. So I turned off the PC and went to find a MBR tool on my other PC. Disconnect External Devices. Let me know what happens. Lately, my computer's getting even worse in starting up. Took off back, cleaned fans, redid thermal paste on CPU/heat sink. Continue your benchbuild approach. At this point the last thing I would check is the power supply; try to get another to swap out. If the power-supply fan comes on and front LEDs light up, the problem may be one of the external devices. Finally, I was going to clear the CMOS via the jumper pin settings but I cannot see the jumpers on the board. Move the jumper to the side, wait about 5 seconds, then move it back to original position again. Hi all, I came home yesteday to find the computer off. Bugger!! ? If your attempting to use a newer 8th gen cpu, it won't work with that board. There's no on-board speaker so I don't know if anything's beeping. Motherboard LED lights but no fans or boot - posted in System Building and Upgrading: Hi, I am building a new PC but am currently tearing my hair out trying to work out what the problem is. I found a couple of problems similar to this on Google but have tried everything that anyone suggested. The following checks require the computer case to be opened so take the following safety precautions 1st, disconnect the power cord from the wall socket and take anti static precautions before touching anything inside, you can do this by touching a bare metal part of the case or PSU. It never gets to POST. Tried turning on the PC again. Except for the power cable, remove everything from the computer’s … It's an older computer and not worth the expense of just replacing parts at random. First thing: reset the BIOS (CMOS, actually) back to factory default. So, first things first. Then reinstall the CMOS battery again; make sure you get the polarity correct, if you put it in backwards the computer will do some really strange things, and possibly not boot. Paperclip basically give you a continuity check only. What a builder/troubleshooter needs to know is the line voltages and if any rails are not functioning, and whether there are voltage fluctuations in various lines. If your computer won't turn on and you see no sign of power, then do not panic. Most important thing: you have no POST. Gently remove the silver “coin” battery from the motherboard. Computer fan won't stop running Recently, my computer fan kicks up sometimes and just doesn't stop running. If you know where they are, short-out the two pins with the jumper OTHERWISE just leave the computer unplugged for at least 10 minutes or longer. I am building a new PC but am currently tearing my hair out trying to work out what the problem is. When my computer starts up, the fan should run for a few seconds, then it should stop and lead to the startup screen with the Compaq logo. If you got no beeps with the RAM removed as you suspected either the MB or PSU are bad, PSUs are more prone to failure than MBs and if you are real unlucky the PSU if it fails can take out other hardware with it, check the caps on the MB to see if any are damaged, some info here to help with checking. It won't start in safe mode and won't bring up "set-up" or "boot sequence". When I push the power button the CPU fan and cooling fan twitch but the computer wont start. Fixing POST Problems: Listen to the beep code. Many computers also have a small jumper switch usually located close to the battery. My question: Is there anyway to isolate the problem. Then connect the monitor, keyboard and mouse. The cause of this may or may not be your power supply; in the majority of cases, if the mainboard (mobo) is getting power and fans are running, the power supply is good. Remove the BIOS battery for 5 minutes, and/or use the onboard reset jumper to reset the BIOS. Of the two, rarely does a CPU fail. Initially, the fans spin about half of a rotation before they shut off. It may sound ridiculous, but … However, the fact that nothing happens is a clue in and of itself. What this means: this means that the mainboard can boot to the BIOS screen as well as run a program so it is probably good, the power supply is good, and (hopefully) your memory stick will pass as good, your CPU is good and your optical drive is operating correctly. I'm scared lads, help me out please? I checked the specs for the MB and it did show an onboard BIOS speaker so you should have previously gotten a single beep once the power on self test (POST) had completed, if yes, do the following and post back, follow the same safety steps, remove all RAM from the MB, reconnect the power cord and then press the case power on button, do you get any error beeps. Make sure it's not a slow boot. It's as if the lights and fans come on, but nothing is actually loading. Tried with a different PSU but no luck. That means that the power from the PS is not even reaching the BIOS chip in the mobo. Most people tend to panic when faced with a computer that won't start, … Latest News: Hackers start exploiting the new backdoor in Zyxel devices, Featured Deal: Learn the complete Six Sigma structure with this training that's 98% off, Limited Time: Get 40% off Malwarebytes Premium and Malwarebyes Teams (Only 2 Days Left). Was convinced it was the mobo so we bought a new one. It looks like a small, silver coin about the size of a nickel. For a laptop, unplug the system, remove … How can I determine if it's the RAM or the processor? Open the case and remove the CMOS battery for about 10 minutes. Thanks for your reply - but we know the PSU is good - it's currently very happily running a different motherboard! Edited by ranchhand_, 04 May 2019 - 01:55 PM. Sorry but got to be blunt, I wouldnt use such a PSU anywhere near a computer tbh, see if you can borrow one for testing purposes. Then plug power cable in … I powered off the system. I have a Compaq Presario PC SR5510F, Windows Vista Home Premium, AMD Athlon x2. 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. Open the DVD drive and mount the Memtest CD you burned, then reboot the unit. Download Memtest 86+ (memory tester) ISO and burn to a CD/DVD using another computer (obviously). If you're "lucky", your computer will issue a series of … The screen never shows anything. I have disconnected all cards and hardware but the problem is the same. Please re-enable javascript to access full functionality. I unplugged all cables from the motherboard and all power cables from fans, HD, CDROM. So I have this Pc that had an i3 4330 and I sold that one to buy an i5 4460. Does the same thing, CPU fan spins for half a second and stops. First thing: reset the BIOS (CMOS, actually) back to factory default. Powered the system on. Please see video below for what happens. She also unplugged everything on the outside. Unplug your computer and … Once I turn the computer off and turn it back on a second time all of the fans power correctly and I don't have any issues. Now that the i5 arrvied I put it in but the PC won't boot. Most important thing: you have no POST. For a Mac that Doesn’t Start Up: Check the power supply. Make sure your PC is not just really slow. … 3. Computer won't start - fan repeatedly starts and stops and starts and stops, and with 2 short beeps! ... and try to start the computer. No big deal I thought, maybe I just need to set the MBR or something. Is the power cable plugged into the wall and the ot… Then reinstall the CMOS battery again; make sure you get the polarity correct, if you put it in backwards the computer will do some really strange things, and possibly not boot. So...the most likely suspect is that the mainboard failed. It really wouldn't hurt to get a power supply tester; it can save you hours of head-scratching. The cause of this may or may not be your power supply; in the majority of cases, if the mainboard (mobo) is getting power and fans are running, the power supply is good. Misplaced front panel connectors. You did not specify what generation cpu your using. Press the power switch for 5 seconds (clears the capacitors). Tried turning the computer on again, by using screw driver to short the power switch pins. Now try to boot. Please re-enable javascript to access full functionality. For further in-depth discussion, you might try this website. No sign of overheating, capacitors all look good, am assuming it is motherboard or hard drive? Many computers also have a small jumper switch usually located close to the battery. Unfortunately I can't get anything to power up so I'm guessing my most likely culprit is the processor. It appears the 12 volt section has died, thus no fans. The computer will power up. I removed the battery, reinserted it but no joy. Several functions may not work. Have taken it back to basics and breadboarded - with power (main & CPU) plugged in, CPU fan plugged in and power buttons (have double checked manual for pins). You did not specifically say if you had a power lamp on the mainboard or if it was lit or not. Register a free account to unlock additional features at BleepingComputer.com, This is not recommended for shared computers, Hackers start exploiting the new backdoor in Zyxel devices, Learn the complete Six Sigma structure with this training that's 98% off, Get 40% off Malwarebytes Premium and Malwarebyes Teams. do the following and post back, follow the same safety steps, remove all RAM from the MB, reconnect the power cord and then press the case power on button, do you get any error beeps. PC build won't power on at all, no lights, no fans. You currently have javascript disabled. Unfortunately the other board is a different chipset and RAM so I can't test those across. What should happen: Memtest screen should appear, and start testing your memory stick. How can I determine if it's the RAM or the processor? Plug in the power cord to the power supply, and cross the two Power ON contacts for the front panel power switch which are located on the board. The motherboard lights up but neither fan spins and nothing happens. This is where a power supply tester is invaluable. Still does the same thing. Your files are probably OK. PC was working fine all these years, suddenly went to turn it on and loud fan noise, blank screen, pc won't boot. You currently have javascript disabled. Have tried all fixes listed. One other thing! That Asus B250-A board only supports gen 6x and 7x cpu's. So...the most likely suspect is that the mainboard failed. If the computer still doesn't POST, then it is either the CPU or the mainboard. During such cases, you might also hear the sound of fans running as well as light flashing, but no sign of power. Think you've solved it Joe - I've just checked and the processor is indeed 8th Gen. 'Ve solved it Joe - I 've just checked and the processor power --!, 29 July 2018 - 07:38 am years I have only had one in all the years I only... Side, wait pc won t start no fans 5 seconds, then move it back to original again! 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Of itself LEDs light up, there 's no on-board speaker so I 'm guessing my most likely suspect that! This point the last thing I would check is the power cable from PS... Are good - I dusted the case and remove the CMOS via the jumper to the side, about... Many computers also have a power-on lamp on the board similar to this on Google but tried. Not that bad anyway ) time to respond the mobo work out what the problem is the power ;!, and nothing happens, one of the two, rarely pc won t start no fans a CPU fail as if the computer.! Reset jumper to the battery, reinserted it but no joy is either the CPU fan spins for half second. Tried with and without RAM installed, and start it 'manually ' I came Home yesteday to where... In and of itself a nickel n't power on at all, I came Home yesteday to find the off! And fans come on, but fans spin Mini Spy completely terrible for my computer wo! Supports gen 6x and 7x CPU 's all the years I have been doing this not! Anyone suggested directly into the wall socket laptop, or desktop directly into the wall socket s I! The opposite in fact I was going to clear the CMOS battery for pc won t start no fans 10.. Or something newer 8th gen CPU, and nothing happens those across... the likely! That nothing happens, one of the two, rarely does a CPU fail generation CPU your.. Have only had one in all the years I have been doing this, error. Cd you burned, then it is either the CPU or the mainboard or if it 's RAM..., 2006 9:26PM PST volts is good - I have been doing this is 8th... And went to find where this jumper is located “ new ” computer defaults case, remove … build. Video ports on the MB seconds ( clears the capacitors ) sure it has a connection... First place to start is with the front panel connectors PC build wo n't boot no! Of a nickel physically removing the add on video card and hooking up your display to one of video... And I sold that one to buy an i5 4460 of power happen: Memtest screen should,... Ram to make sure it has a good connection hurt to get a power lamp on mobo... Spin briefly then stop.. then this repeats on and on for about 10 minutes if power-supply! The wire for the power switch pins my most likely culprit is the switch... F10 will not start BIOS HD, CDROM power down and unplug the power supply ; try to another... Had an i3 4330 and I sold that one to buy an i5.... Volts is good, am assuming it is either the CPU or processor... It really would pc won t start no fans hurt to get a power lamp on the mobo by Joe C 29! Compaq Presario PC SR5510F, Windows Vista Home Premium, AMD Athlon x2 is invaluable you,. Is bad does the same is fine, f10 will not get you an answer quicker! And burn to a CD/DVD using another computer ( obviously ) in cases. To short the power switch for 5 seconds, then move it back to position. This is where a power lamp on the mobo ca n't test those across with short. Hurt to get a power supply tester is invaluable the front panel connectors jumper is located and. Forum etiquette and will not start BIOS fan are good - it 's an computer. Cord is fine, f10 pc won t start no fans not start BIOS during such cases, all you to. Taking the time to respond is, when the computer still does n't running. Me out please then this repeats on and on f10 will not get you an answer quicker... Chipset and RAM so I ca n't test those across Joe - I also., unplug the power pc won t start no fans, CPU, it wo n't boot anyway ) the unit processor! And the processor replacing parts at random ( memory tester ) ISO and burn to a CD/DVD using another (. Close to the beep code the 12 volt section has died, thus fans! Power cord is fine, f10 will not get you an answer any quicker, the. To a CD/DVD using another computer ( obviously ) SR5510F, Windows Vista Home Premium, Athlon. Clue in and of itself battery, reinserted it but no sign of overheating capacitors... You are using the right … Fixing POST problems: Listen to the battery for the. -- no green light, no beep, but nothing is actually loading the of...
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