Solved PC Fan Speed is in Overdrive At Boot

August 24, 2013 at 00:20:56
Specs: Windows Vista, 4GB
Just as i stated my Computer is not running quietly its running very loud and i tried to check the Bios and oddly enough the computer does not recognize the Fan at all its just spinning like crazy.

I had to Jumpy my Motherboard in order for me to reaccess my bios from the last incident.

What should i do?


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✔ Best Answer
August 24, 2013 at 19:58:15
We don't have the advantage of having that case in front of us so maybe that's why your fix sounds confusing, particularly this:

". . .but what i did is that i removed the CPUs incredibly loud motor fan and this fan sounded alright to keep so i removed the CPUs fan completely and placed it on the CPU to keep it cool. So now it only has 2 fans."

But again, maybe it'd make sense if I had the case to look at.

The 'attached pipe thing' over the cpu is usually there to funnel the cpu heat out of the back of the case. If that's what the 'pipe thing' is for then it shouldn't be blocking anything unless someone has messed around with it and reinstalled it incorrectly.

But if the temps stay low and the noise is gone then I guess that's all that matters.

message edited by DAVEINCAPS



#1
August 24, 2013 at 02:11:51
It's not uncommon for the fan to spin faster for a few seconds when you first start the computer. The the bios takes over the speed and it slows down. Is it possible the fan is noisy and that's why you're noticing it?

If that's not it, check the fan's motherboard connection. Make sure it's plugged into the 'cpu fan' connection. Any other connection may not be monitored by the bios.

And if that's not it I suppose you can try a new fan.


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#2
August 24, 2013 at 02:53:34
Its hard to tell which is which theres a Fan for the motherboard and a fan for the CPU of course a Power Supply fan.

Now the issue is once booting the PC if i unplug it and replug it from the Outlet it overrides and then slows down fully but in this situation my fan from what ever source "Im sure its from the Motherboard" wont stop spinning in a rediculous speed its so fast and loud its just not fun to use the PC i tried to play Sonic Generations from my PC and see how hot the system got and this is strange but the PC showed absalutely no trace of overheating maybe a few percentage but nothing out of the ordinary.

So overall the issue is im sure at least... a fan simply going crazy and i dont know what to do im getting desperate


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#3
August 24, 2013 at 03:12:40
The various fan connections are usually printed on the motherboard by their connectors. Did you also look in cmos/bios setup and see what it says there (if anything) about monitoring the fan speed?

A fan spinning fast will be somewhat loud but it shouldn't be obnoxiously so. Maybe it's failing and should be replaced anyway. Or sometimes a drop of oil in the center bearing will quiet it down for awhile.


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Related Solutions

#4
August 24, 2013 at 04:42:20
Well i dont have a choice so will replacing the fan from the Motherboard fix this issue? if so i can just go buy some fans from Bestbuy there dirt cheap any way.

As far as i know it should be the Motherboards fan my CPU has no activity reading on the computer its completely idol even when the computers fan is going berzerk and my power supply is running nice.


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#5
August 24, 2013 at 06:25:00
Most systems have a CPU fan that is plugged into a port marked 'Fan_CPU' and a case fan plugged into a port marked 'Sys_Fan1' or something similar. Please verify that they are correctly connected and which one is loud. A case fan is 'dirt cheap' but many stock CPU fans are an integral part of the heat sink and cannot be replaced without replacing the heat sink. If the CPU fan is replacable, do not break the seal of the heat sink to the CPU and make sure that you use a fan with the same plug type, probably 4pin rather than the 3pin of many case fans. If you need to replace the heat sink, you will need one compatible with your CPU type and you will need to understand the correct method of removing the old thermal compound and replacing it with the correct amount applied with the correct method for your CPU:
http://www.arcticsilver.com/methods...
Also note that may aftermarket heat sinks require a bracket used on the back of the motherboard which might require you to remove the motherboard from the case, and that some aftermarket heat sinks are rather large for stock cases to fit into so shop carefully.

You also should confirm that you are not running hot by installing monitoring software like HWMonitor to see your temperatures and fan speeds real time within Windows since a high temperature could be the cause of the high fan speed. In this case, you would need to find out why it is running hot.

You have to be a little bit crazy to keep you from going insane.


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#6
August 24, 2013 at 10:02:20
Thanks its actually not the Motherboards fan nor the Power Supply Fan its the CPU's fan and i tried to figure out why the fan would not spin in a lower percentage. Than i thought about things like maybe there should be something to tell the fan to spin less faster you know? its like 100% is the real normal but when it spins at least 45% its a actual customize number that maybe the Bios is forcing the fan to spin on.

And the Heatsink is not fully replacable it also has some fan stuck on top of it the only way i could fully determine that it was the CPUs fan was by testing all the fans and the CPUs was the true loudest.

Since this is infact a CPU issue what should i do for this thing to spin at a lower percentage


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#7
August 24, 2013 at 10:54:57
You should have stuck with your other thread. The fact that you "jumpy'd" the motherboard means any customized BIOS settings have reset to their defaults & defaults are almost never the best settings, all there are is a starting point.

You now you have 2 threads going & still haven't posted any info regarding the make/model of your system or any system specs. Would you talk to an auto mechanic but not tell him the year, make, model, engine, auto or stick, etc of your car? Well, the same applies to computers repairs.


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#8
August 24, 2013 at 11:54:46
The whole "Jumpy" thing was a typo i type fast which leads to a spelling error sometimes im not saying i bother with typing good at times either..

And i HAD to Jump the Motherboard the Bios and the OS were not able to be accessed no matter what the fact i used the Jump method was because i had no other option if there was another option i would had done that, so i get it i hit a starting point but it had to be done other wise the computer itself would had been useful for nothing.

And why would the Model of the computer matter? all im asking is if there is like a way to make the fan spin less loudly because i cant bare the darn thing its to loud.

The build/ model etc is as below:

PC Model:Gateway GT5438
-- Build date: Im not to sure on that but my guess is around 2006
Intel Motherboard
CPU:Intel Core 2 Duo
RAM:(2) 1GB of DDR1 RAM , AND (2) 1GB of DDR2 RAM
OS:Windows Vista
GPU:HD Radeon 5450 1GB of RAM

So there they are and i am sorry for the back and forwards.. situation i had going on there


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#9
August 24, 2013 at 15:52:12
I'm rather inclined to think it is just a noisy fan, not necessarily running fast at all.
As already suggested, if there is a sticker on the fan you can pop a drop of oil in then refix the sticker. I've done this many times and it lasts too.

This will sound crazy but if you are not certain where a noise is coming from it can often be located by using a stick of wood - one end in your ear, the other at the suspect device.

Always pop back and let us know the outcome - thanks


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#10
August 24, 2013 at 16:54:54
Your system detailed information is important for us so that if needed, we can download a copy of your manual and access other information about your system and give you more specific answers rather than general answers that you would then need to search for and make guesses about, especially BIOS settings which often are labeled differently.
Your Manual:
https://support.gateway.com/s/Manua...
Unfortunately, there is no BIOS set up section of the manual, so it is of limited help.
Your specs:
https://support.gateway.com/s/PC/R/...

When you cleared your CMOS ("Jumped"), did you go into your BIOS and "Reset Defaults", If not, you should have, then gone back into your BIOS and fine tuned things. You still can do this and if needed ask for help with this.
http://support.gateway.com/s/mother...

As I mentioned above, install the program HWMonitor and report back the internal temperatures and fan RPM's which will also help us narrow things down some.
http://www.cpuid.com/downloads/hwmo...

You have to be a little bit crazy to keep you from going insane.

message edited by Fingers


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#11
August 24, 2013 at 17:17:05
Well after hours of trying i even losty sleep trying to fix this last night... its a no fix i tried everything even people kept throwing the "Vacuum the Fans out" method, i tried it i spent 7 minutes properly vacuuming out the dust which didnt have much, i tried the Bios and nothing, i Jumped the computer again to attempt a Bios reset nothing i downloaded that Speenfan application to see if that had a affect and nothing which after my latest episode with my computer the WiFi adaptor wasnt working right but nothing a good reinstall couldnt fix and so far nothing the fan is still in overdrive mode or something every technique provided failed unfortunately.

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#12
August 24, 2013 at 17:28:03
For future reference, vacuuming it out isn't a good idea. Static can build up on the vacuum hose and tip and end up zapping your motherboard. Apparently you had no problems this time. Better to use compressed air.

Aboiut the fan, as Fingers mentioned you would need an exact replacement or you could replace both the heatsink and fan with an already assembled unit.


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#13
August 24, 2013 at 18:02:13
Well i did my own modification to it here i will explain the mod.


The computer originally had 3 fans "1 Power, 2 Motherboard, 3 CPU."

But the one fan after further investigation didnt seem to cool anything down at all this is mostly the attached pipe thing that is placed ontop of the CPUs fan completely blocking it i even had people say to remove that fan since it was completely useless but what i did is that i removed the CPUs incredibly loud motor fan and this fan sounded alright to keep so i removed the CPUs fan completely and placed it on the CPU to keep it cool. So now it only has 2 fans.

I dont think this is a bad mod since the fan had no real use at all it only blew air on what was a blockage "The CPUs Vacuum tube thing" but nothing ever did cool down even from past use by that particular fan, and the components were never truly exposed to the fans blows and they stayed at acceptable levels or Normal levels.

The GPU has its own Heatsink so its fine on its own during 3D operations and Video Games i mean the highest it can handle is just 720p which isnt a huge power guzzler.

As of now i have been testing the fan performance heating etc.. and it seems to work fine it has fine ventilation and less power is used since the other fan is no longer in use.

The computer has shown no signs of any failures what so ever.


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#14
August 24, 2013 at 19:58:15
✔ Best Answer
We don't have the advantage of having that case in front of us so maybe that's why your fix sounds confusing, particularly this:

". . .but what i did is that i removed the CPUs incredibly loud motor fan and this fan sounded alright to keep so i removed the CPUs fan completely and placed it on the CPU to keep it cool. So now it only has 2 fans."

But again, maybe it'd make sense if I had the case to look at.

The 'attached pipe thing' over the cpu is usually there to funnel the cpu heat out of the back of the case. If that's what the 'pipe thing' is for then it shouldn't be blocking anything unless someone has messed around with it and reinstalled it incorrectly.

But if the temps stay low and the noise is gone then I guess that's all that matters.

message edited by DAVEINCAPS


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#15
August 24, 2013 at 22:52:26
Im sorry im not familiar with all computer parts. But the computer is running fine so thanks for the help.

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