[SOLVED] pc fan error at boot.

[using google in BSOD]

let me explain my problem.
so, my pc's fan rotating extremely slow on boot making it can't even reach the windows logo. and there is a message said that my fan is error.
and the fan sounds pretty noisy like there is a hair on it. but after i tried to check what's happening with the rotator, it's still completely normal and fine.
can anyone help me please?

 

[using google in BSOD]

and i don't think i will want to update bios since it will be too risky for the pc.

 

[Chris David]

is the error " CPU Fan Failure" or "CPU Fan Error" ?

Because if so, you have connected the CPU Fan to a port that isn't meant for the CPU Fan.

Look on the board and see if you can find a port that is labeled " CPU Fan" you can mostly find this in the left top or the right top near the socket where your fan is supposed to be placed in.

https://support.hp.com/doc-images/582/c05511819.jpg

Something like this, but it is engraved on your board. Take the fan's 12v cable from the port it is in and connect it to the CPU Fan Port, this will allow your fan to run at full speed, without any grinding noises and also clears you from the CPU Fan Failure/Error problem and allows you to boot into Windows.

 

[using google in BSOD]

it's plugged into there already. to the port where there is a label said that it's for the cpu fan.
and when i want it to run at full speed, the computer shut down 5 second after it.

 

[Chris David]

it's plugged into there already. to the port where there is a label said that it's for the cpu fan.
and when i want it to run at full speed, the computer shut down 5 second after it.

May I know what Cooler you are using ?

 

[using google in BSOD]

May I know what Cooler you are using ?

Intel CNFN7095T2 DC 12V. that's everything on the sticker.

 

[Chris David]

Intel CNFN7095T2 DC 12V. that's everything on the sticker.

Ok so mostly when this happens, it means the fan is not receiving full power, I believe the fan's 12v cable is 4pin, is the CPU Fan port 4 Pin or 3 Pin ?

 

[using google in BSOD]

it's a 4 pin fan. but i found something new in this problem, the fan start rotating normally if i knock it softly as the computer start booting up. and the computer finally booting up normally without fan error (but i had to do it everytime it starts up).

so, does that mean there is something else happening instead of bios mistake. like there is something inside the fan making it has to be knocked for at least 3 times to run normally?

i don't wanna risk it having short lifespan if i keep knocking it. or dissassemble it without any expert telling me what to do.

 

[Paperdoc]

Sorry to say, but your story tells me the fan already has reached the end of its short life. I am presuming this is not a new fan; you have had it for a while and now it is malfunctioning.

What you describe is a fan with badly worn bearings. As a fan is used and ages, the sleeve bearing that the shaft runs in wears out to a wider bore diameter. This allows the shaft to rattle around in the loose bore, rather than running smoothly. The typical story in the early stages of this is that the odd noise of that fan only shows up when your system is first turned on after being off for long enough to get cooled down completely. When you start up, it makes a bad noise, but that stops after a few minutes as the bearing heats up and the clearance tightens, and the noise never comes back until the system is turned off and cooled down again. In the later stages as the bore wears even larger, the noise lasts longer, then never goes away. In the last stages the damage is so bad it causes the fan to run much slower than it should and not cool the PSU enough. At that point your mobo CPU_FAN header may warn you that the fan us running much too slow, and may shut you down to prevent CPU overheating.

You cannot repair the fan. It must be replaced.

 

[testingJack]

Disconnect the power from your computer by unplugging your computer from an electrical current.
Remove the side panel from your desktop computer using the necessary procedures for your machine.
Ensure that each system fan is correctly plugged into your motherboard. If any connections are askew make sure to unplug the system fan and plug it back in to the correct location.
Replace your desktop’s side panel, plug in your computer, and turn the machine on. If the machine still has a system fan error please follow more steps below:
Disconnect the power from your computer and remove the side panel from your computer again.
Make a note of each cable connected to your motherboard and power supply.
Unplug all cables from the computer, remove dust and debris, and then plug the cables back into the correct locations.
Replace your desktop’s side panel, plug in your computer, and turn the machine on. If the machine still has a system fan error we recommend to contact the manufacturer or to replace your system fan.
Reduce the heat in your computer.

 

[using google in BSOD]

i'm 100% not joking right now. but my computer is INSANELY fast after i knock the fan. it doesn't even took more than 5 sec to boot up to the desktop. and my current power plan is balanced with 65% usable cpu and 2 gb usable ram (since my gpu took the 2 gb out of 4).

is that a sign of new problems coming into the future?

this makes me happy and worried at the same time.

happy because it's booting up insanely fast and run program 2x better than before.even better than SSDs.

and worried because it could be a sign my computer is going to be extremely problematic or even dead.

what is this happening?
why is my hdd boot up faster than SSDs?

 

[Chris David]

i'm 100% not joking right now. but my computer is INSANELY fast after i knock the fan. it doesn't even took more than 5 sec to boot up to the desktop. and my current power plan is balanced with 65% usable cpu and 2 gb usable ram (since my gpu took the 2 gb out of 4).

is that a sign of new problems coming into the future?

this makes me happy and worried at the same time.

happy because it's booting up insanely fast and run program 2x better than before.even better than SSDs.

and worried because it could be a sign my computer is going to be extremely problematic or even dead.

what is this happening?
why is my hdd boot up faster than SSDs?

"HDD boot up faster than SSD" no, not really, my 500 GB HDD boots up in a 5 second limit but that doesn't mean its faster than my 850 EVO. You are just experiencing your HDD at full speed for the first time I guess.

"knock it in" , if your fan needs a modest amount of physical violence to start working properly, then chances are its going to go down way sooner than you expec it.

" run program 2x better than before " again, false statement, having a SSD doesn't magically mean you get a greater speed in programs, its just better loading times and faster read/write ratio but it outright doesn't mean your programs are going to work fast. Considering you don't have the slightest idea of how a SSD works and how its only different in some aspects than a HDD, again i'll have to tell you that you are just experiencing your HDD in full performance for the first time.

Its only a couple more times before it goes off, you knock it back in and it starts working and one day you are going to "knock it in" and permanently yeet your cooler. Not to mention that Thermal throttling is not fine and if you are using a lousy cooler that requires " knock it in " action, then you'll more or less end up with a processor with microscopic thermal damage that'll affect performance and longevity, so yes aside from all the other statements, you will end up with a dead processor if you don't get your fan fixed soon enough.

tl;dr :

1. SSD's don't work the way you think it does, you are seeing your HDD in full performance for the first time
2. You will end up with a dead processor if you don't get a cooler that doesn't require you to put it in its place by "knock it in" tactics to start working properly.

 

[using google in BSOD]

"HDD boot up faster than SSD" no, not really, my 500 GB HDD boots up in a 5 second limit but that doesn't mean its faster than my 850 EVO. You are just experiencing your HDD at full speed for the first time I guess.

"knock it in" , if your fan needs a modest amount of physical violence to start working properly, then chances are its going to go down way sooner than you expec it.

" run program 2x better than before " again, false statement, having a SSD doesn't magically mean you get a greater speed in programs, its just better loading times and faster read/write ratio but it outright doesn't mean your programs are going to work fast. Considering you don't have the slightest idea of how a SSD works and how its only different in some aspects than a HDD, again i'll have to tell you that you are just experiencing your HDD in full performance for the first time.

Its only a couple more times before it goes off, you knock it back in and it starts working and one day you are going to "knock it in" and permanently yeet your cooler. Not to mention that Thermal throttling is not fine and if you are using a lousy cooler that requires " knock it in " action, then you'll more or less end up with a processor with microscopic thermal damage that'll affect performance and longevity, so yes aside from all the other statements, you will end up with a dead processor if you don't get your fan fixed soon enough.

tl;dr :

1. SSD's don't work the way you think it does, you are seeing your HDD in full performance for the first time
2. You will end up with a dead processor if you don't get a cooler that doesn't require you to put it in its place by "knock it in" tactics to start working properly.

ok, i think i'm considering a new fan and a new cpu (although it's only the fan broke.)
and because it's the only solution, then, i could say that this question thread is now solved.