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-   -   CPU fan has become noisy, but a problem.... (https://www.diybanter.com/electronics-repair/390349-cpu-fan-has-become-noisy-but-problem.html)

Bill Baxter February 12th 16 12:14 AM

CPU fan has become noisy, but a problem....
 
The problem is that I can't seem to remove it and also, after seeking
out websites suggesting lubrication a small hole, which I don't seem to
have, I am unable to lub it. The way the fan is attached to the
heatsink is by locknuts that are on the bottom of the heatsink and I
don't see any easy way to just pop off the fan and replace. The fan
itself is a Thermaltake Tt and the heatsink may be too for that matter.
Initially I tried removing the four screws holding the fan in place,
but the heatsink came out too and I had to clean and then recoat the
heatsink/ CPU before pushing and screwing the fan/heatsink assembly back
into place. This desktop is up and running as I write from it, but the
fan has become quite loud. Even if everything is off and I just spin
the fan by hand, I can hear the same vibration. Is there any way I can
just lubricate or replace the fan without also the heatsink, or is there
no choice but to have to replace them both?

[email protected] February 12th 16 12:21 AM

CPU fan has become noisy, but a problem....
 
There are a number of different fans that attach in "interesting" ways. Any way you can post a picture of the fan? At the very least, post the make and model of the desktop. There may be pix online or someone here (me?) may have a similar unit and can guide you on removal.

It does need to be replaced. The bearings are shot and it is only a matter of time before the fan fails completely.

Dan

Clifford Heath February 12th 16 12:35 AM

CPU fan has become noisy, but a problem....
 
On 12/02/16 11:14, Bill Baxter wrote:
The problem is that I can't seem to remove it and also, after seeking
out websites suggesting lubrication a small hole, which I don't seem to
have, I am unable to lub it. The way the fan is attached to the
heatsink is by locknuts that are on the bottom of the heatsink and I
don't see any easy way to just pop off the fan and replace. The fan
itself is a Thermaltake Tt and the heatsink may be too for that matter.
Initially I tried removing the four screws holding the fan in place,
but the heatsink came out too and I had to clean and then recoat the
heatsink/ CPU before pushing and screwing the fan/heatsink assembly back
into place. This desktop is up and running as I write from it, but the
fan has become quite loud. Even if everything is off and I just spin
the fan by hand, I can hear the same vibration. Is there any way I can
just lubricate or replace the fan without also the heatsink, or is there
no choice but to have to replace them both?


A lot of these fans have a foil circle (that has printing on it)
covering the bearings and armature to prevent dust getting in. If you
lift the edge of the foil with the tip of a knife, you can peel it off,
put a tiny drop of oil on the bearing (or bushing, more commonly) and
that will shut it up until you can replace it. Put the foil back,
obviously.

Bill Baxter February 12th 16 12:50 AM

CPU fan has become noisy, but a problem....
 
Thanks, guys, and sorry to waste your time here. The cooler is for LGA
775 and I just found a new one, complete with heatsink, for $8 shipped.
At that price, I snatched it. I had in my mind that this was like a
$30-40 item (heatsink/ fan assembly) and maybe it was at one time but no
longer apparently. Bill


On 12/02/16 11:14, Bill Baxter wrote:
The problem is that I can't seem to remove it and also, after seeking
out websites suggesting lubrication a small hole, which I don't seem to
have, I am unable to lub it. The way the fan is attached to the
heatsink is by locknuts that are on the bottom of the heatsink and I
don't see any easy way to just pop off the fan and replace. The fan
itself is a Thermaltake Tt and the heatsink may be too for that matter.
Initially I tried removing the four screws holding the fan in place,
but the heatsink came out too and I had to clean and then recoat the
heatsink/ CPU before pushing and screwing the fan/heatsink assembly back
into place. This desktop is up and running as I write from it, but the
fan has become quite loud. Even if everything is off and I just spin
the fan by hand, I can hear the same vibration. Is there any way I can
just lubricate or replace the fan without also the heatsink, or is there
no choice but to have to replace them both?


A lot of these fans have a foil circle (that has printing on it)
covering the bearings and armature to prevent dust getting in. If you
lift the edge of the foil with the tip of a knife, you can peel it off,
put a tiny drop of oil on the bearing (or bushing, more commonly) and
that will shut it up until you can replace it. Put the foil back,
obviously.



Jon Elson February 12th 16 04:56 AM

CPU fan has become noisy, but a problem....
 
Bill Baxter wrote:

The problem is that I can't seem to remove it


Well, I see you have found a solution. But, for a Dell desktop I had that
got noisy, I bought replacement bearings from Boca Bearings and replaced
them. Slightly tricky small work, and you don't want to lose the tiny
circlip that holds everything on the shaft. Most of these fans have ball
bearings, so adding lube will have very little effect. The Boca bearings
were not as good as original, but they gave 3-4 years of 8760 Hr/year
service.

Jon

Look165 February 12th 16 08:01 AM

CPU fan has become noisy, but a problem....
 
Never lube any PC fan

Noise problem is usually caused by dust or bearing ending its lifetime.

ON CPU generally, fan are clipped or screwed on the heatsink.

But some manufacturers glue them with and thermal conductive glue.

You can try to make it turn with a vacuum cleaner and check its noise.



Bill Baxter a écrit :
The problem is that I can't seem to remove it and also, after seeking
out websites suggesting lubrication a small hole, which I don't seem to
have, I am unable to lub it. The way the fan is attached to the
heatsink is by locknuts that are on the bottom of the heatsink and I
don't see any easy way to just pop off the fan and replace. The fan
itself is a Thermaltake Tt and the heatsink may be too for that matter.
Initially I tried removing the four screws holding the fan in place,
but the heatsink came out too and I had to clean and then recoat the
heatsink/ CPU before pushing and screwing the fan/heatsink assembly back
into place. This desktop is up and running as I write from it, but the
fan has become quite loud. Even if everything is off and I just spin
the fan by hand, I can hear the same vibration. Is there any way I can
just lubricate or replace the fan without also the heatsink, or is there
no choice but to have to replace them both?



N_Cook February 12th 16 08:10 AM

CPU fan has become noisy, but a problem....
 
On 12/02/2016 00:14, Bill Baxter wrote:
The problem is that I can't seem to remove it and also, after seeking
out websites suggesting lubrication a small hole, which I don't seem to
have, I am unable to lub it. The way the fan is attached to the
heatsink is by locknuts that are on the bottom of the heatsink and I
don't see any easy way to just pop off the fan and replace. The fan
itself is a Thermaltake Tt and the heatsink may be too for that matter.
Initially I tried removing the four screws holding the fan in place,
but the heatsink came out too and I had to clean and then recoat the
heatsink/ CPU before pushing and screwing the fan/heatsink assembly back
into place. This desktop is up and running as I write from it, but the
fan has become quite loud. Even if everything is off and I just spin
the fan by hand, I can hear the same vibration. Is there any way I can
just lubricate or replace the fan without also the heatsink, or is there
no choice but to have to replace them both?


Do you have room to fit another fan over the top of the existing one?

mike[_22_] February 12th 16 01:12 PM

CPU fan has become noisy, but a problem....
 
On 2/12/2016 12:01 AM, Look165 wrote:
Never lube any PC fan

Noise problem is usually caused by dust or bearing ending its lifetime.

ON CPU generally, fan are clipped or screwed on the heatsink.

But some manufacturers glue them with and thermal conductive glue.

You can try to make it turn with a vacuum cleaner and check its noise.



Bill Baxter a écrit :
The problem is that I can't seem to remove it and also, after seeking
out websites suggesting lubrication a small hole, which I don't seem to
have, I am unable to lub it. The way the fan is attached to the
heatsink is by locknuts that are on the bottom of the heatsink and I
don't see any easy way to just pop off the fan and replace. The fan
itself is a Thermaltake Tt and the heatsink may be too for that matter.
Initially I tried removing the four screws holding the fan in place,
but the heatsink came out too and I had to clean and then recoat the
heatsink/ CPU before pushing and screwing the fan/heatsink assembly back
into place. This desktop is up and running as I write from it, but the
fan has become quite loud. Even if everything is off and I just spin
the fan by hand, I can hear the same vibration. Is there any way I can
just lubricate or replace the fan without also the heatsink, or is there
no choice but to have to replace them both?


Most fans have a sticker over the end of the shaft.
Some have a rubber plug over the end.

I use gun oil. It's thicker, so it tends to stay longer.
Yet it penetrates well.

For power supply fans and laptop fans, I often drill a hole
in the case so I can poke an insulin syringe thru the label
to lube it next time.

It's harder to get the lube to the other end of the shaft
for ball-bearing fans, but if you put in enough oil, it
migrates better than I expected.

Some fans don't have access to the shaft at all.
I never figured out how to remove the blade without breaking
something.
One time, I drilled a tiny hole in the blade hub at an angle
that intersected the bearing beneath and lubed that hole.
Tricky, but it worked.

Ian Field February 13th 16 10:23 PM

CPU fan has become noisy, but a problem....
 


"Bill Baxter" wrote in message
...
The problem is that I can't seem to remove it and also, after seeking out
websites suggesting lubrication a small hole, which I don't seem to have,
I am unable to lub it.


Some have a rubber bung in the bearing recess - most have nothing more than
the paper label covering the hole.

A syringe is the usual method of introducing fresh oil.


Ian Field February 13th 16 10:25 PM

CPU fan has become noisy, but a problem....
 


"mike" wrote in message
...
On 2/12/2016 12:01 AM, Look165 wrote:
Never lube any PC fan

Noise problem is usually caused by dust or bearing ending its lifetime.

ON CPU generally, fan are clipped or screwed on the heatsink.

But some manufacturers glue them with and thermal conductive glue.

You can try to make it turn with a vacuum cleaner and check its noise.



Bill Baxter a écrit :
The problem is that I can't seem to remove it and also, after seeking
out websites suggesting lubrication a small hole, which I don't seem to
have, I am unable to lub it. The way the fan is attached to the
heatsink is by locknuts that are on the bottom of the heatsink and I
don't see any easy way to just pop off the fan and replace. The fan
itself is a Thermaltake Tt and the heatsink may be too for that matter.
Initially I tried removing the four screws holding the fan in place,
but the heatsink came out too and I had to clean and then recoat the
heatsink/ CPU before pushing and screwing the fan/heatsink assembly back
into place. This desktop is up and running as I write from it, but the
fan has become quite loud. Even if everything is off and I just spin
the fan by hand, I can hear the same vibration. Is there any way I can
just lubricate or replace the fan without also the heatsink, or is there
no choice but to have to replace them both?


Most fans have a sticker over the end of the shaft.
Some have a rubber plug over the end.

I use gun oil. It's thicker, so it tends to stay longer.
Yet it penetrates well.


Slick 50 PTFE engine oil additive works best of all.


Bill Baxter February 15th 16 11:51 PM

CPU fan has become noisy, but a problem....
 
Just wanted to update that the new fan/ heatsink arrived and was an
exact replacement for the original. Still had some Arctic Silver
sitting around and used that after removing the original grease. The
new assembly is now in place and the fan is almost as quiet as a mouse.


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