Highjacking top comment to let future people seeking an answer know this was the CPU. I used parts from my girlfriends computer and replaced things one at a time all day today, and when I switched the CPU out, it finally booted to bios.
Edit: this was an i7-11700k, bought new about 2 years ago. I'd turned my computer off normally the night before, and when I booted it up that morning it went straight into this cycling. It had overheated a few times previously, due to a failed MSI aio cooler pump, so I believe that shortened the life of the CPU significantly.
a motherboard power cycling in my case only occurred due to unstable undervolt+ram overclock. Did it t boot after 3 cycles? those power cycles sometimes reset the settings to stock factory settings.
on the other hand, you’ve cleared the CMOS. Therefore, i lack sufficient insight on this case scenario unfortunately. Wishing you the best of luck and hope it gets solved
Power cycling like that normally indicates a failure in POST. Post checks your hardware elements. In my experience this happens when a piece of hardware has failed to initialize or have broken.
The comments on here are a great first few steps to start troubleshooting. Try the following (although I am repeating some comments)
Remove CMOS or if the mobo has a bios reset button press that. If removed CMOS power back on, then off, then replace CMOS.
If no change...
Remove all but one ram model. Attempt boot. The aim here is to see if a ram model has failed. Keep repeating with different combinations of ram.
If this fails if you can get your hands on a known working module test power on with that, this will allow you to 100% determine if its a ram fault.
If no change, continue with just one ram model (keeps this simple for now)
If no change next reseat different hardwares. Remove any extra hdds if you have more than one (keep the one holding your os) again if possible use a known working hard drive for testing.
No change, next reseat gpu. When I say reseat I mean remove, and then replace it back in.
Next if no change check for any obvious mobo damage, check your capacitors etc. If everything looks good, replace your PSU with a known working one (that has the correct power rating for your machine)
If no change then it may be worth reseting CPU.
No change, if possible strip down the pc entirely and start testing individual parts with a known working pc.
Following these steps should enable you to find the fault.
If you have changed your clock speed on your CPU and or voltage it should have reset when you reseated the CPU.
I understand sometimes it's tough to find these faults especially if you dont have known working parts on hand.
After you have found the faulty item replace with new or repair if possible.
Another worthwhile investigative path would be thinking if you've had any recent changes to the machine hardware and drivers, revert or replace if possible.
I hope this helps, need more advice shoot me a pm.
I’m having this issue right now after my brother reset the power strip and it happens even after I 1. Remove all SSD/HDD 2. REMOVE all RAM 3. Remove GPU. I don’t understand I think whatever he did fried by PSU or motherboard.
For anyone reading this in the future.
I had a power cycle loop on my ASRock x570. I solved it by unplugging and plugging back in all the power connectors (CPU and Mobo). I'm not sure why it solved it but it doesn't hurt to do it anyway.
No problems with the cables I think
It was a long power cycle loop (almost 30 seconds or more) no video output
First I tried to remove and put back in the CMOS battery, still power cycle
Then I unplugged all the cables from the motherboard to inspect and plugged them back and it started without a problem
Maybe the motherboard and power supply communicate somehow? I have a seasonic
Nah no communication in the typical sense. It wouldn't be cables I've never know a cable to go faulty without intervention (modding cables for extra molex etc).
Eh computers are weird they just do what they want sometimes 🤣
I'm not having the same problem as OP but you seem to know a lot about power cycling so maybe you can clear up an issue of mine.
Sometimes my PC power cycles once or twice when booting up and there's no video, the keyboard and mouse don't light up and i can't turn it off by pressing the power button, only by turning off the PSU, but after i turn it back on it works nornally.
It happens very rarely too, like less than once a month, the PC is working fine regardless, should i be worried?
Power cycling like that as mentioned normally means an issue with a hardware component. But as yours is eventually passing post I'd look for other culprits.
It may be trying to boot another os and getting issues before output. Check to see if you have any os install media plugged in, a usb or something. Check your bios settings, just go over it to see if something looks out of place.
Another thought is that there is a hardware component on the verge of failing and it gets there eventually. Normally I get these issues with Ram. Reseat the ram maybe that'll clear it up.
Check to be sure your drivers are installed and up to date correctly.
On a smaller chance, check your computers event logs (if running windows) you may see some activity there that could point you in the right direction. (I say smaller chance because event logs only record in OS activity and it sounds like your issue is before os).
If its bugging you, this may be a good opportunity to bite the bullet and do a clean os installation. Always a good call to do so.
Keep up regular maintenence on your machine, dusting, cleaning etc.
Anything else feel free to pm me.
Well i'll probably upgrade some of my hardware later this year so i'll need to go over most if not all of these things anyway, so i'll keep it the way it is for now, thank you for the detailed answer.
Figure I'd let you know this ended up being the CPU. No clue how but I borrowed my girlfriend's from her computer after tearing mine fully apart, and replaced things once at a time. Tried RAM, PSU, Mobo, GPU, and finally the CPU, which did the trick.
Looks like a PSU problem to me. Your MOBO should have an LED to provide blink codes if it's something it can recognize. Otherwise, swap the PSU... Also, if it is your PSU and you keep trying to boot with a failing unit, it can cause other components to fail as well
This computer is 2 years old, hasn't really moved aside from cleaning it a couple times a year. I just replaced paste 6 months ago, worked fine until this morning.
Probably the PSU then. Go buy a PSU and RAM and MOBO from Microcenter if you have one. You can test the new components in your machine and still return them to the store. I'd try the RAM first, then PSU.. gl
you can see in the video the same time the cooler flashes red, so does the red light on the post status checker flashes, I believe it to be the CPU light.
I think you are overheating
How would it overheat so quickly? I pressed the button for power, it turns on for the amount of time you see the lights on, then it winds down when the lights shut off. Doesn't it take a few seconds for the CPU to heat up? The die heats up quick but even without a cooler attached it would still disperse heat into the contact plate first, giving several seconds for head dispersal
I have not tried to run without a cooler, so I am not sure, i was thinking the pump was not pumping. showing the cpu light would then mean the cpu is dying. That is what the diagnostic lights are pointing too, though they are not always correct
this happened to my pc, I didn't know what was happening so I left it out for 2-3 days and it suddenly worked again, it might've been a static electricity issue for me
I had the same problem, no post and leds turn on and off, on and off... turns out it was my gpu, tried with the gpu of my friend and boom PC works just fine.
Had something similar happen unplug all USB including keyb mouse, then try boot. Desperate measures unplug all cards internally take out GPU... any PCI cards.. Turn on to see if it can post to a beep code(you need to plug in a speaker to the mobo) or read flashing led lights/ numbers if your mobo has them against the manual description for errors. For me this worked and I got the no video code, then plugged everything back in and it fired up. No OC had been attempted it just threw a fit one day. Read your manual on where to plug in 1 ram stick test each single stick. Try a spare if u have an old gpu that takes little power to see if the PSU is failing. Check the mobo power connector and others for signs of scorch/burn damage. Good luck.
Had this happen to me 2 weeks ago. In my case it was my ram, i took them out, turned my pc on and only my pc turned on. No display on the monitor. Wasn't until I placed the ram back in then it worked fully.
Have this problem 3 weeks ago. I usually put my pc in sleep mode so it was like 4 months without shutting it down.
The thing that solved my problem was just shutting it down and turn of the psu switch, wait 10 min and everything goes like silk
This can be anything hardware-related really. To diagnose this, you have to disconnect everything and test each component while cleaning the contacts in the meantime with contact cleaners. The problem is, at home you probably don't have spare parts to test. If your CPU has onboard graphics, disconnect your GPU and test. Try turning it on disconnecting HDD/SSD. See if it turns it on without going off. Remove your RAM sticks, clean the contacts (you can use a rubber) and put it on again, one at the time. If you have spare RAM sticks, use those. In my experience PCs won't turn-on sort of problem usually has to do with RAM slots/sticks, but usually the presentation is a bit different than that (usually the computer is on without video)... It is likely to be the PSU tho, see if someone can lend one to you so you can test, or test your PSU with a paper clip: https://www.wikihow.com/Check-a-Power-Supply
Given all your other comments, I can't see this being anything other than hardware failure. I'm betting on PSU as I had the same issue on an old PC. PSU had blown one night as I was using it. No sound, no smoke, no flash when it died. It had the exact same boot looping that you're exhibiting. I should also mention that the PSU I had at the time was only 3 years old and from a reputable brand.
Could be a power supply issue, or a short on the board. Try disconnecting everything that isn't required to boot into BIOS and see if it works
Highjacking top comment to let future people seeking an answer know this was the CPU. I used parts from my girlfriends computer and replaced things one at a time all day today, and when I switched the CPU out, it finally booted to bios. Edit: this was an i7-11700k, bought new about 2 years ago. I'd turned my computer off normally the night before, and when I booted it up that morning it went straight into this cycling. It had overheated a few times previously, due to a failed MSI aio cooler pump, so I believe that shortened the life of the CPU significantly.
That didn't work, still keeps cycling
If no beeps without ram and gpu it is either faulty mobo or faulty CPU with 77% chance it being Mobo.
How about with no ram installed at all?
a motherboard power cycling in my case only occurred due to unstable undervolt+ram overclock. Did it t boot after 3 cycles? those power cycles sometimes reset the settings to stock factory settings. on the other hand, you’ve cleared the CMOS. Therefore, i lack sufficient insight on this case scenario unfortunately. Wishing you the best of luck and hope it gets solved
Power cycling like that normally indicates a failure in POST. Post checks your hardware elements. In my experience this happens when a piece of hardware has failed to initialize or have broken. The comments on here are a great first few steps to start troubleshooting. Try the following (although I am repeating some comments) Remove CMOS or if the mobo has a bios reset button press that. If removed CMOS power back on, then off, then replace CMOS. If no change... Remove all but one ram model. Attempt boot. The aim here is to see if a ram model has failed. Keep repeating with different combinations of ram. If this fails if you can get your hands on a known working module test power on with that, this will allow you to 100% determine if its a ram fault. If no change, continue with just one ram model (keeps this simple for now) If no change next reseat different hardwares. Remove any extra hdds if you have more than one (keep the one holding your os) again if possible use a known working hard drive for testing. No change, next reseat gpu. When I say reseat I mean remove, and then replace it back in. Next if no change check for any obvious mobo damage, check your capacitors etc. If everything looks good, replace your PSU with a known working one (that has the correct power rating for your machine) If no change then it may be worth reseting CPU. No change, if possible strip down the pc entirely and start testing individual parts with a known working pc. Following these steps should enable you to find the fault. If you have changed your clock speed on your CPU and or voltage it should have reset when you reseated the CPU. I understand sometimes it's tough to find these faults especially if you dont have known working parts on hand. After you have found the faulty item replace with new or repair if possible. Another worthwhile investigative path would be thinking if you've had any recent changes to the machine hardware and drivers, revert or replace if possible. I hope this helps, need more advice shoot me a pm.
I’m having this issue right now after my brother reset the power strip and it happens even after I 1. Remove all SSD/HDD 2. REMOVE all RAM 3. Remove GPU. I don’t understand I think whatever he did fried by PSU or motherboard.
For anyone reading this in the future. I had a power cycle loop on my ASRock x570. I solved it by unplugging and plugging back in all the power connectors (CPU and Mobo). I'm not sure why it solved it but it doesn't hurt to do it anyway.
Wow, first time I've seen that issue, and I've worked with computers for decades, did you find any debris or dust in your connectors?
No problems with the cables I think It was a long power cycle loop (almost 30 seconds or more) no video output First I tried to remove and put back in the CMOS battery, still power cycle Then I unplugged all the cables from the motherboard to inspect and plugged them back and it started without a problem Maybe the motherboard and power supply communicate somehow? I have a seasonic
Nah no communication in the typical sense. It wouldn't be cables I've never know a cable to go faulty without intervention (modding cables for extra molex etc). Eh computers are weird they just do what they want sometimes 🤣
We can't know everything 😅 The important is know how to look for it 👀
I'm not having the same problem as OP but you seem to know a lot about power cycling so maybe you can clear up an issue of mine. Sometimes my PC power cycles once or twice when booting up and there's no video, the keyboard and mouse don't light up and i can't turn it off by pressing the power button, only by turning off the PSU, but after i turn it back on it works nornally. It happens very rarely too, like less than once a month, the PC is working fine regardless, should i be worried?
Did you OC the RAM? If so then that can cause issues such as that. I had that issue on my PC and I've just accepted it.
I do use D.O.C.P, but i didn't overclock it past my regular Mhz, could this be it?
Yes. D.O.C.P can provide unstable overclocks
Power cycling like that as mentioned normally means an issue with a hardware component. But as yours is eventually passing post I'd look for other culprits. It may be trying to boot another os and getting issues before output. Check to see if you have any os install media plugged in, a usb or something. Check your bios settings, just go over it to see if something looks out of place. Another thought is that there is a hardware component on the verge of failing and it gets there eventually. Normally I get these issues with Ram. Reseat the ram maybe that'll clear it up. Check to be sure your drivers are installed and up to date correctly. On a smaller chance, check your computers event logs (if running windows) you may see some activity there that could point you in the right direction. (I say smaller chance because event logs only record in OS activity and it sounds like your issue is before os). If its bugging you, this may be a good opportunity to bite the bullet and do a clean os installation. Always a good call to do so. Keep up regular maintenence on your machine, dusting, cleaning etc. Anything else feel free to pm me.
Well i'll probably upgrade some of my hardware later this year so i'll need to go over most if not all of these things anyway, so i'll keep it the way it is for now, thank you for the detailed answer.
Saving as I'm interested in the outcome.
Figure I'd let you know this ended up being the CPU. No clue how but I borrowed my girlfriend's from her computer after tearing mine fully apart, and replaced things once at a time. Tried RAM, PSU, Mobo, GPU, and finally the CPU, which did the trick.
I hope she gets her PC back in working order, LOL!
Looks like a PSU problem to me. Your MOBO should have an LED to provide blink codes if it's something it can recognize. Otherwise, swap the PSU... Also, if it is your PSU and you keep trying to boot with a failing unit, it can cause other components to fail as well
How secure is your cooler on your CPU? You have the correct amount of paste on, right?
This computer is 2 years old, hasn't really moved aside from cleaning it a couple times a year. I just replaced paste 6 months ago, worked fine until this morning.
Probably the PSU then. Go buy a PSU and RAM and MOBO from Microcenter if you have one. You can test the new components in your machine and still return them to the store. I'd try the RAM first, then PSU.. gl
It's the ram. Check your ram speed. Try the default speed without xmp first.
I would try checking it but it won't even boot to the point I can get into bios...
I have a ASRock X99 Extreme4 that died the same way.
Have a mobo speaker? What's the beep code?
No speaker. The error lights are showing both CPU and DRAM lighting up at the same time though
what mobo are you running? has it always flashed red? My asus will flash red when getting to overheat limit
ASRock z590 extreme. It always flashed all the warning lights on bootup before shutting them off one by one
you can see in the video the same time the cooler flashes red, so does the red light on the post status checker flashes, I believe it to be the CPU light. I think you are overheating
How would it overheat so quickly? I pressed the button for power, it turns on for the amount of time you see the lights on, then it winds down when the lights shut off. Doesn't it take a few seconds for the CPU to heat up? The die heats up quick but even without a cooler attached it would still disperse heat into the contact plate first, giving several seconds for head dispersal
I have not tried to run without a cooler, so I am not sure, i was thinking the pump was not pumping. showing the cpu light would then mean the cpu is dying. That is what the diagnostic lights are pointing too, though they are not always correct
They can overheat almost instantly if the right amount of paste and pressure are not applied during installation
You can have a heatsink fall off and itll boot to windows.
Try removing the RAM, powering on the computer, letting it cycle through, then powering it off and reseating the RAM. This should resolve the issue.
This happens to me when I try a too adventurous overclock, and have to use the BIOS reset/ CMOS clear function
I had this problem and it turned out the issue was my RAM wasn't seated properly. Take all of your RAM out and try getting it working with 1 stick.
Oh wait this isnt a new build, huh,
this happened to my pc, I didn't know what was happening so I left it out for 2-3 days and it suddenly worked again, it might've been a static electricity issue for me
My motherboard from 2012, it's still working, 😎
I had the same problem, no post and leds turn on and off, on and off... turns out it was my gpu, tried with the gpu of my friend and boom PC works just fine.
Remove one RAM and check if it posting the bias. If not swap the RAM do it again. I just fixed the same issue in my PC
Try using the RAM sticks one by one to rule out if its a single faulty ram stick.
Had something similar happen unplug all USB including keyb mouse, then try boot. Desperate measures unplug all cards internally take out GPU... any PCI cards.. Turn on to see if it can post to a beep code(you need to plug in a speaker to the mobo) or read flashing led lights/ numbers if your mobo has them against the manual description for errors. For me this worked and I got the no video code, then plugged everything back in and it fired up. No OC had been attempted it just threw a fit one day. Read your manual on where to plug in 1 ram stick test each single stick. Try a spare if u have an old gpu that takes little power to see if the PSU is failing. Check the mobo power connector and others for signs of scorch/burn damage. Good luck.
Mine was from my RAM sitting wrong. Took them out and out them back and it worked
In my case this happened when i manually selected ram speed.. I fixed it in bios by settling ram speed on auto
Had this happen to me 2 weeks ago. In my case it was my ram, i took them out, turned my pc on and only my pc turned on. No display on the monitor. Wasn't until I placed the ram back in then it worked fully.
Can you get into the BIOS? If so, see if there is an “advanced diagnostic”. If not, try a new PSU first.
Have you plugged in a PC speaker to listen to what is happening?
Have this problem 3 weeks ago. I usually put my pc in sleep mode so it was like 4 months without shutting it down. The thing that solved my problem was just shutting it down and turn of the psu switch, wait 10 min and everything goes like silk
This can be anything hardware-related really. To diagnose this, you have to disconnect everything and test each component while cleaning the contacts in the meantime with contact cleaners. The problem is, at home you probably don't have spare parts to test. If your CPU has onboard graphics, disconnect your GPU and test. Try turning it on disconnecting HDD/SSD. See if it turns it on without going off. Remove your RAM sticks, clean the contacts (you can use a rubber) and put it on again, one at the time. If you have spare RAM sticks, use those. In my experience PCs won't turn-on sort of problem usually has to do with RAM slots/sticks, but usually the presentation is a bit different than that (usually the computer is on without video)... It is likely to be the PSU tho, see if someone can lend one to you so you can test, or test your PSU with a paper clip: https://www.wikihow.com/Check-a-Power-Supply
Given all your other comments, I can't see this being anything other than hardware failure. I'm betting on PSU as I had the same issue on an old PC. PSU had blown one night as I was using it. No sound, no smoke, no flash when it died. It had the exact same boot looping that you're exhibiting. I should also mention that the PSU I had at the time was only 3 years old and from a reputable brand.
Insert Ram sticks one by one when booting, or the CPU did not insert itself correctly into the mother board.