computer making loud and or revving and or werring noise on start up only

[BanTheTesters]

Hello everyone lately ive noticed on start up my computer is making a spinning and or wiring noise. I thought it was the cpu fan and I replaced that....i tightened screws on the case fan and re-seated all of my parts..it stopped for about 2 weeks and came back. It just started recently..the computer case is old (maybe about 6 years or so) but the case fans and everything seem to work...

Some one said it might just the start up fans is that true? Its odd this all started recently a month or so ago and happens every once in a while...

I am not hearing any strange noises while gaming just on start up.

Is this something to be worried about or is it just the fans starting up etc?

specs: I9 - 10850k
GPU - 3080 tuff
Ram - 32 gp
windows 10

[BanTheTesters]

Publicado originalmente por viking's Strike:

did changing case fans solve your problem ?

Yep, I havnt had any noise issues since swapping out the case fans so far. Been monitoring it for the last few days and..nothing heck they are more quite then the default fans ever were lol

[BanTheTesters]

Publicado originalmente por Illusion of Progress:

Publicado originalmente por viking's Strike:

did changing case fans solve your problem ?

I presume so given the reply above.

OP, what case fans did you have before, and what ones now? And did you change how they connect?

If you ONLY changed the fans, it suggests the behavior is probably still there, but merely that the new fans are quieter at max speed? Or a prior fan was faulty and noisy at max speed when it shouldn't be.

The old fans were nzxt pre installed case fans(one on top and one behind for exhaust). Looks like they were connected to a splitter of some sort that came with the case that you then just connected to you psu cables. They were not connected to the mother board. Also the case/fans are bout 6-7 years old.


I swapped them out with black edition nactua fans and connected them directly to the motherboard via cables and the nactua brands Offical extension cables, each to their own direct motherboard slot and not via the case splitter that then needs to be connected into the psu. Didn’t go that route this time. I just connected the fan extension cables directly into the motherboard slots.

Ran some games and tested the pc un plugged aka “cold boot” (which is when the noise would happen shortly after the computer was plugged in then I’d wait a bit and turn it on and that’s when the noise would happen) and no noise as of yet since the new fan swap on boot or unplugged cold blood.

[Illusion of Progress]

Publicado originalmente por BanTheTesters:

Publicado originalmente por Illusion of Progress:

I presume so given the reply above.

OP, what case fans did you have before, and what ones now? And did you change how they connect?

If you ONLY changed the fans, it suggests the behavior is probably still there, but merely that the new fans are quieter at max speed? Or a prior fan was faulty and noisy at max speed when it shouldn't be.

The old fans were nzxt pre installed case fans(one on top and one behind for exhaust). Looks like they were connected to a splitter of some sort that came with the case that you then just connected to you psu cables. They were not connected to the mother board. Also the case/fans are bout 6-7 years old.


I swapped them out with black edition nactua fans and connected them directly to the motherboard via cables and the nactua brands Offical extension cables, each to their own direct motherboard slot and not via the case splitter that then needs to be connected into the psu. Didn’t go that route this time. I just connected the fan extension cables directly into the motherboard slots.

Ran some games and tested the pc un plugged aka “cold boot” (which is when the noise would happen shortly after the computer was plugged in then I’d wait a bit and turn it on and that’s when the noise would happen) and no noise as of yet since the new fan swap on boot or unplugged cold blood.

That different method of connecting them likely explains the difference.

I'm presuming that your fan speed controller was taking a moment to "kick in" so to speak when turning on the PC, and before it did, the fans were just running full speed for a brief moment. Most of those fan controllers that connect directly to the PSU control speed just by altering the voltage they feed the fan (5V, 7V, and 12V commonly). My case also has such a controller (though my fans don't start at full speed and I often use 7V for less noise).

When you connected the new ones to the motherboard, the board is now controlling the speed and it probably isn't starting them at 100% speed (in the chance it is, which is probably unlikely, then the reason you don't hear it could be explained that they may outright be quieter at 100% speed compared to the old ones).

[BanTheTesters]

Publicado originalmente por Illusion of Progress:

Publicado originalmente por BanTheTesters:

The old fans were nzxt pre installed case fans(one on top and one behind for exhaust). Looks like they were connected to a splitter of some sort that came with the case that you then just connected to you psu cables. They were not connected to the mother board. Also the case/fans are bout 6-7 years old.


I swapped them out with black edition nactua fans and connected them directly to the motherboard via cables and the nactua brands Offical extension cables, each to their own direct motherboard slot and not via the case splitter that then needs to be connected into the psu. Didn’t go that route this time. I just connected the fan extension cables directly into the motherboard slots.

Ran some games and tested the pc un plugged aka “cold boot” (which is when the noise would happen shortly after the computer was plugged in then I’d wait a bit and turn it on and that’s when the noise would happen) and no noise as of yet since the new fan swap on boot or unplugged cold blood.

That different method of connecting them likely explains the difference.

I'm presuming that your fan speed controller was taking a moment to "kick in" so to speak when turning on the PC, and before it did, the fans were just running full speed for a brief moment. Most of those fan controllers that connect directly to the PSU control speed just by altering the voltage they feed the fan (5V, 7V, and 12V commonly). My case also has such a controller (though my fans don't start at full speed and I often use 7V for less noise).

When you connected the new ones to the motherboard, the board is now controlling the speed and it probably isn't starting them at 100% speed (in the chance it is, which is probably unlikely, then the reason you don't hear it could be explained that they may outright be quieter at 100% speed compared to the old ones).

I had the old fans hooked up to the case splinter (i dont think it was a fan control divice as it just hooked 2 fans into one imput that I then just hooked up to the psu) and they never made a noise until the recent post


Just seems odd though. Im wondering if the old one was faulty? I mean those things had been used for years and never made a sound until now before the swap....

Do you think It might have been wear and tear? If they were running at full blast the whole time wouldnt I have heard it way before hand years ago?

[Illusion of Progress]

Those case splitters are often connected to a fan speed control. Does your particular case itself have a fan speed control feature? If so, and it was set to something other than the highest, then they wouldn't have been running "full speed" all the time. That would make for an easy explanation for the loud noise at startup.

However, if either your case doesn't have a fan speed control, or if it does and you had it set to the highest speed, then I'm not sure what the explanation could be.

If you had the curiosity and the time to spare, you could either connect the new fans using the same method the old ones connected and/or connect the old fans to the motherboard and see what the results are. My mind is telling me if the fans were always running full speed, then if they developed a fault, it wouldn't make sense for it to have been loud at startup only, but if they weren't running at full speed all the time then the explanation was that they were briefly at startup, and were developing a fault to where they only started loud at startup.

Fans can make a lot of noise. Not all noises are signs of a problem though. If it just sounds like the noise of air moving/wind, that's not necessarily a bad fan. If it's squeaking or wobbling or something else, it will generally sound different and that can be a bad fan motor/bearing/brush or even an imbalanced/broken blade causing uneven rotation.

[BanTheTesters]

Publicado originalmente por Illusion of Progress:

Those case splitters are often connected to a fan speed control. Does your particular case itself have a fan speed control feature? If so, and it was set to something other than the highest, then they wouldn't have been running "full speed" all the time. That would make for an easy explanation for the loud noise at startup.

However, if either your case doesn't have a fan speed control, or if it does and you had it set to the highest speed, then I'm not sure what the explanation could be.

If you had the curiosity and the time to spare, you could either connect the new fans using the same method the old ones connected and/or connect the old fans to the motherboard and see what the results are. My mind is telling me if the fans were always running full speed, then if they developed a fault, it wouldn't make sense for it to have been loud at startup only, but if they weren't running at full speed all the time then the explanation was that they were briefly at startup, and were developing a fault to where they only started loud at startup.

Fans can make a lot of noise. Not all noises are signs of a problem though. If it just sounds like the noise of air moving/wind, that's not necessarily a bad fan. If it's squeaking or wobbling or something else, it will generally sound different and that can be a bad fan motor/bearing/brush or even an imbalanced/broken blade causing uneven rotation.

The case from what i know of doesnt have fan control.

And i cant hook up the new fans to the splitter due to the case splitter being 3 pin fans only..the new fans are 4 pin.

So with the board controlling the fans I take it they arent running full speed as you stated? I heard that can change due to windows up date etc

Man I hope I didnt swap those out for no reason...at the same time the fans were old...I was told it sounded like it was going full speed and the baring were going out

The previous noise was more like a revving noise, now with the new fan set up i hear...nothing lol

[Illusion of Progress]

As far as I know, most of those splitters would be 3 pin even if they physically accommodate a 4 pin one because the forth pin on a fan would be for the PWM signal (adjusts speed on the fly) which can't be used it it's connected directly the the PSU like that. If there's no fan control you know of, then it sounds to me like the fans were constantly getting 12V and always running 100% speed. Therefore, if they were making a noise on startup but only then, that noise couldn't have been from them running full speed or else you'd always hear it. I'd have to hear it to take a better guess but my lone guess as of right now is if it wasn't doing it originally, then something may have been going bad over time.

You can still plug the old fans into the motherboard, but... it's not really a concern worth the work unless you're either curious, or wanting to know if the old fans are good or not. Unless the cost of those new fans was a big issue, it's not a big setback at any rate even if the old ones still work.

I personally have four fans and three are connected the way your old ones were (but they have a voltage/speed control), and the rear exhaust is connected to the motherboard like your new ones are.

[BanTheTesters]

Publicado originalmente por Illusion of Progress:

As far as I know, most of those splitters would be 3 pin even if they physically accommodate a 4 pin one because the forth pin on a fan would be for the PWM signal (adjusts speed on the fly) which can't be used it it's connected directly the the PSU like that. If there's no fan control you know of, then it sounds to me like the fans were constantly getting 12V and always running 100% speed. Therefore, if they were making a noise on startup but only then, that noise couldn't have been from them running full speed or else you'd always hear it. I'd have to hear it to take a better guess but my lone guess as of right now is if it wasn't doing it originally, then something may have been going bad over time.

You can still plug the old fans into the motherboard, but... it's not really a concern worth the work unless you're either curious, or wanting to know if the old fans are good or not. Unless the cost of those new fans was a big issue, it's not a big setback at any rate even if the old ones still work.

I personally have four fans and three are connected the way your old ones were (but they have a voltage/speed control), and the rear exhaust is connected to the motherboard like your new ones are.

yea i didnt buy a whole bunch of new fans just the essentials. Yea im definitely wondering why the noise stopped all of a sudden the new fans were installed.

Just not sure if they were running at full speed why they never made any type of noise till recently and it was only on start up and from cold boot...just seemed weird but now everything quite...been updating the thread ever since the new install and..nothing no noise.

So i assume with the no noise everything should be fine i guess or?

Is it ok that the fans arent running 100 percent? idk what the normal speed is now that they are plugged to the board etc

[Illusion of Progress]

If there's no noise, I'd presume it's fine until (and if) it returns. About all you can do. Again, you could test the old fans connected to the motherboard if you wanted to, but short of that, if there's no symptom, there's no problem.

Sometimes computers can be weird. I've been dealing with an on again, off again series of issues with my current platform that started getting increasingly bad not too long back, mostly boiling down to random restarts and cold boot failures to POST (would always succeed on a second try). I even RMA'd the PSU since it had another issue but I really wasn't suspecting it anyway, and as thought, it didn't help. Then it just... goes away. I'm confused. Frustrated, but confused. I can't really reach out to my motherboard or RAM manufacturer if it's not currently exhibiting the issue (and both have their warranty end middle of this year, so my fear is the issue returns some point after that).

But anyway, sometimes computers don't (seem to, anyway) follow logic or reason, so all you can do is react to things when they happen, even if they don't make sense.

And the fans don't need to run at 100%, no. They'll move more air, and make more noise, and wear out faster, you might get lower temperatures, but that's all that will change. If you're not currently having issues with temperatures, you don't need to run them faster. I set mine to run at 7V instead of 12V for noise reasons. And if I do need temperatures lower, I have them option to set them to 12V.

[BanTheTesters]

Publicado originalmente por Illusion of Progress:

If there's no noise, I'd presume it's fine until (and if) it returns. About all you can do. Again, you could test the old fans connected to the motherboard if you wanted to, but short of that, if there's no symptom, there's no problem.

Sometimes computers can be weird. I've been dealing with an on again, off again series of issues with my current platform that started getting increasingly bad not too long back, mostly boiling down to random restarts and cold boot failures to POST (would always succeed on a second try). I even RMA'd the PSU since it had another issue but I really wasn't suspecting it anyway, and as thought, it didn't help. Then it just... goes away. I'm confused. Frustrated, but confused. I can't really reach out to my motherboard or RAM manufacturer if it's not currently exhibiting the issue (and both have their warranty end middle of this year, so my fear is the issue returns some point after that).

But anyway, sometimes computers don't (seem to, anyway) follow logic or reason, so all you can do is react to things when they happen, even if they don't make sense.

And the fans don't need to run at 100%, no. They'll move more air, and make more noise, and wear out faster, you might get lower temperatures, but that's all that will change. If you're not currently having issues with temperatures, you don't need to run them faster. I set mine to run at 7V instead of 12V for noise reasons. And if I do need temperatures lower, I have them option to set them to 12V.

I have to say this is pretty eye opening comment, very cool actually. I definitely need to keep some of these things in mind.

No noise as of yet, and I think its fine to have replaced the case fans as they were 6-7 years old anyway right?

I guess my question is how do you not worry about the semi constant issues that crop up with pc stuff?

Short of forums I dont think you ever really hear about peoples PC issues etc ya know?

Interesting to note that the fans running at full speed increases wear and tear..i think the motherboard rep was also stating that pre installed case fans weren't built to last like other fans etc.

Sorry to hear about your comp issues...i think thats one think I have to keep in mind is that you are correct computers are weird and dont follow logic. I forget that sometimes I think.

I dont know if the fans are running at 100 percent now while connected to the board (nor how to check that), i also dont know how to change the voltage or check it. Is that all done in the bios or?

[Heretic]

I wouldn't change the voltage (some fans will react differently to different voltage ranges). You just need to set up a better fan curve. The default motherboard setting are usually too high (cover themselves). With tuned curves everything is quiet except when I am running near full power or at the initial power on self test (one second or so).

The issue with nerfing case fans over noise complaints is that the powerful graphics card fans will have to work harder when cycling warm air, which simply moves the noise somewhere else.

It's all about balancing it out for any given situation.

[BanTheTesters]

Publicado originalmente por Heretic:

I wouldn't change the voltage (some fans will react differently to different voltage ranges). You just need to set up a better fan curve. The default motherboard setting are usually too high (cover themselves). With tuned curves everything is quiet except when I am running near full power or at the initial power on self test (one second or so).

The issue with nerfing case fans over noise complaints is that the powerful graphics card fans will have to work harder when cycling warm air, which simply moves the noise somewhere else.

It's all about balancing it out for any given situation.

Hmm i dont think im going to touch the fan curve or voltage,

but...just in case, do we edit the fan curve or voltage Is in the motherboard bios?

[Illusion of Progress]

Publicado originalmente por BanTheTesters:

I have to say this is pretty eye opening comment, very cool actually. I definitely need to keep some of these things in mind.

No noise as of yet, and I think its fine to have replaced the case fans as they were 6-7 years old anyway right?

I guess my question is how do you not worry about the semi constant issues that crop up with pc stuff?

Short of forums I dont think you ever really hear about peoples PC issues etc ya know?

Interesting to note that the fans running at full speed increases wear and tear..i think the motherboard rep was also stating that pre installed case fans weren't built to last like other fans etc.

Sorry to hear about your comp issues...i think thats one think I have to keep in mind is that you are correct computers are weird and dont follow logic. I forget that sometimes I think.

I dont know if the fans are running at 100 percent now while connected to the board (nor how to check that), i also dont know how to change the voltage or check it. Is that all done in the bios or?

Well, short or worrying about what "could happen", which doesn't accomplish much, you can't do anything about it other than be ready to apply the best process of solving things as they arise. MOST of the time things should work and follow expectations. It's just that sometimes there are things that common people (which I'm including myself and normal enthusiasts in) won't be able to diagnose. "Common people" would basically be non-professionals without the equipment and knowledge of the very, very finer details. For example, there might be some fringe, individual part (like a lone capacitor or whatever) out of spec that you'd basically need to have the equipment and knowledge to spot because general troubleshooting might not explicitly identify it. Can't do much about that, but that's what support and RMAs are for.

And if you're using 4 pin fans connected to the motherboard, it will adjust the speed using the PWM signal (probably based on temperatures, and you can probably see the fan curve in your BIOS/UEFI). In that case, the fans are (I think?) always given 12V since the speed isn't needing to be adjusted by feeding them less voltage. Many fans actually have a minimum needed voltage of around 7V to either operate, or at least start, so if you connect them to a speed control that simply adjusts the voltage they are given to control speed (such as in my case), then choosing the 5V option may result in them stalling, or not starting. IIRC, if my PC is set to 5V, the fans may not start, but if I set it to 5V after they are running, they do keep operating. I can't remember though, as I set them to 7V minimum and only tried 5V a time or two as 7V is already near silent enough, but 12V makes them loud.

[BanTheTesters]

Publicado originalmente por Illusion of Progress:

Publicado originalmente por BanTheTesters:

I have to say this is pretty eye opening comment, very cool actually. I definitely need to keep some of these things in mind.

No noise as of yet, and I think its fine to have replaced the case fans as they were 6-7 years old anyway right?

I guess my question is how do you not worry about the semi constant issues that crop up with pc stuff?

Short of forums I dont think you ever really hear about peoples PC issues etc ya know?

Interesting to note that the fans running at full speed increases wear and tear..i think the motherboard rep was also stating that pre installed case fans weren't built to last like other fans etc.

Sorry to hear about your comp issues...i think thats one think I have to keep in mind is that you are correct computers are weird and dont follow logic. I forget that sometimes I think.

I dont know if the fans are running at 100 percent now while connected to the board (nor how to check that), i also dont know how to change the voltage or check it. Is that all done in the bios or?

Well, short or worrying about what "could happen", which doesn't accomplish much, you can't do anything about it other than be ready to apply the best process of solving things as they arise. MOST of the time things should work and follow expectations. It's just that sometimes there are things that common people (which I'm including myself and normal enthusiasts in) won't be able to diagnose. "Common people" would basically be non-professionals without the equipment and knowledge of the very, very finer details. For example, there might be some fringe, individual part (like a lone capacitor or whatever) out of spec that you'd basically need to have the equipment and knowledge to spot because general troubleshooting might not explicitly identify it. Can't do much about that, but that's what support and RMAs are for.

And if you're using 4 pin fans connected to the motherboard, it will adjust the speed using the PWM signal (probably based on temperatures, and you can probably see the fan curve in your BIOS/UEFI). In that case, the fans are (I think?) always given 12V since the speed isn't needing to be adjusted by feeding them less voltage. Many fans actually have a minimum needed voltage of around 7V to either operate, or at least start, so if you connect them to a speed control that simply adjusts the voltage they are given to control speed (such as in my case), then choosing the 5V option may result in them stalling, or not starting. IIRC, if my PC is set to 5V, the fans may not start, but if I set it to 5V after they are running, they do keep operating. I can't remember though, as I set them to 7V minimum and only tried 5V a time or two as 7V is already near silent enough, but 12V makes them loud.

true good point not much you can do.

Everything seems ok at the moment though