PC Peripherals Replacing PSU fan.

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goodakash

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Hey guys,

So, I have a Zebronics Platinum 600W PSU and it is serving me well for the past 3 years, running my ATI 4850 without any problems also. But from the past few days, its fan has started making a weird drilling type noise. This noise remains for around 5-10minutes after I start my system and then a noise of "grrhh grrhh" type continues till my system is powered on .

Measures taken by me :

Opened and cleaned the PSU of all the dust, cleaned the fan and had also put some oil in it.

Doing the above has reduced the noise a bit but its still there. I was thinking of getting a new 120mm fan and replace it with my current PSU fan. Is it feasible ?

Cannot buy a new PSU as of now.

Also, my cabinet is a Cooler Master 430 Elite with PSU on the bottom (fan side down) if that helps.
 
Yes, its possible. However, a bit risky too, IMO. Just ensure that all caps are drained before proceeding to do any kind of work.
 
vivek.krishnan said:
Yes, its possible. However, a bit risky too, IMO. Just ensure that all caps are drained before proceeding to do any kind of work.
Click to expand...

By "all caps are drained" you mean that they should not hold any charge ? I will plug out my PSU for 3-4hours, just to be on a safer side.

Also, any 120mm fan will do ? I was thinking of getting a Cooler Master 120mm non LED fan. Costs about 250 bucks I guess.
 
vivek.krishnan said:
Yes, its possible. However, a bit risky too, IMO. Just ensure that all caps are drained before proceeding to do any kind of work.
Click to expand...

mate i think this is not that necessary,

@OP, instead, just don't touch the open PCB

Cut the wires from the old fan, join it to the new.

BTW, have you tried dissecting the fan completely, and applying vaseline. This is what i did last time. One of my fan, gave low rpm, and was howling whenever i power it on.

I removed the whole, spinning fan, and applied on the axial and on the rod as well. Now it is working in silent mode
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Are you sure that its your cpu fan ?

My case fan makes that sort of drilling noise when then system is started, i just stop the fan using a pin or a strong wire inserting it through the ventilating holes, then the noise stops. Also in case nothing is done the noise dies out in like ~5mins.

FYI my case fan a cheap 80mm fan which came along with the iball cabby
 
CA50 said:
mate i think this is not that necessary,

@OP, instead, just don't touch the open PCB

Cut the wires from the old fan, join it to the new.

BTW, have you tried dissecting the fan completely, and applying vaseline. This is what i did last time. One of my fan, gave low rpm, and was howling whenever i power it on.

I removed the whole, spinning fan, and applied on the axial and on the rod as well. Now it is working in silent mode
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Click to expand...

Yeah, I did dissect the fan and cleaned it completely. But did not apply any vaseline, only machine oil in the center rod on which the fan moves(axial?). Will try applying vaseline and see what happens.

flash23 said:
Are you sure that its your cpu fan ?

My case fan makes that sort of drilling noise when then system is started, i just stop the fan using a pin or a strong wire inserting it through the ventilating holes, then the noise stops. Also in case nothing is done the noise dies out in like ~5mins.

FYI my case fan a cheap 80mm fan which came along with the iball cabby
Click to expand...

No buddy, its not my cpu fan, my cpu has a CM Hyper 212 evo cooler which runs super quiet. Its the PSU's fan for sure.

6pack said:
wont the fan be soldered to the pcb?
Click to expand...

Nopes, its not soldered. The fan's wire goes into the PCB just like we have on our motherboards. I guess its a 2 pin connector. And the fan sits above the PCB screwed with PSU's grill.
 
6pack said:
wont the fan be soldered to the pcb?
Click to expand...

As mentioned before if the op just removes the fan and cut's the wires from between and joins the new wires it shouldn't hurt...provided you apply a insulation tap, the one's that the local shops sell for rs:10/-
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goodakash said:
By "all caps are drained" you mean that they should not hold any charge ? I will plug out my PSU for 3-4hours, just to be on a safer side.

Also, any 120mm fan will do ? I was thinking of getting a Cooler Master 120mm non LED fan. Costs about 250 bucks I guess.
Click to expand...

Check the rating of the fan and replace it with one of similar rating, ideally. But mostly, any fan will do.

Keep it unused for about an hour to be on the safe side.

CA50 said:
mate i think this is not that necessary,

@OP, instead, just don't touch the open PCB

Cut the wires from the old fan, join it to the new.

BTW, have you tried dissecting the fan completely, and applying vaseline. This is what i did last time. One of my fan, gave low rpm, and was howling whenever i power it on.

I removed the whole, spinning fan, and applied on the axial and on the rod as well. Now it is working in silent mode
<
Click to expand...

Its just a safety precaution. Eventually, he has to just disconnect and reconnect the wires only.
 
#goodakash, ok mate post your result.

#vivek.krishnan, thats true, but the question is how to drain individual cap?? Shorting might be risky
 
#CA50, #vivek.krishnan : Won't the caps drain by themselves If I leave the PSU unplugged for 1hr or so ?

BTW, Thanks everyone for your help
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i think by just pressing the power button on comp after shutting it down and switching off plug, the caps should discharge.
 
#6pack : Thats a good idea. Will try the same and post back.
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Case Update :

So, around an hour back, I heard a loud "thaang thaang" noise, as if two metals were clashing with each other. It lasted for a minute or so and then all the weird noises coming from my PSU stopped and it became completely silent. I felt happy for a second and started gaming, when I came back to the desktop I realized that my graphics card temperature was much above normal. I then opened my cabinet and saw that my PSU's fan has stopped working completely. I cannot relate the two but now the fan is not spinning at all. Now, I need to get a new fan ASAP.

Q1. Can I use my computer normally till I get a new fan(no gaming) as my CPU temps are normal under idle/load conditions ?

Q2. Why was there a rise in gfx card temperature even if the PSU's fan stopped working ? Gfx card has its own fan !
 
A1 : Yes you can, but your temps will rise, if you use it extensively

A2: That might be because, the PSU fan blows air out of the cabby. When it stopped, then the air flow also stopped, so your GPU temps rised.

The GPU fan is generally not designed to blow air out of the cabby, it is designed to remove hot air from the chip
 
#CA50 : oohkk mate, got it !
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@all : This is what I did today, I don't know if I did it right or not but read on :

I had a 120mm fan from my previous Zebronics Bijli cabby(front one). So, I did all the stuff of cutting the wires, taped them and replaced my faulty PSU's fan with the bijli one. Now everything is working good and silent, the only thing that is bothering me is that the PSU's fan was a 12v DC 0.35A while my bijli's fan is a 12v DC 0.18A. The fan is spinning fine but the difference is the amps would create any problem ?
 
Aah man....this was the thing I was afraid of
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Edit :

Everything is working nice and fine(and quiet). Thanks a lot guys for your valuable suggestions.
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goodakash said:
Aah man....this was the thing I was afraid of Edit :

Everything is working nice and fine(and quiet). Thanks a lot guys for your valuable suggestions.
Click to expand...

Hi buddy nice to see you repairing on your own.
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Consider getting a higher current rating fan, as the last time I saw the bijli front blue LED fan it had a low RPM.

If you put some heavy loads on the PSU as in gaming at high settings I think your PSU temps will go through the roof with that fan, which may damage your PSU, do check that by testing before continuing with this setup.

If your PSU gets too hot consider attaching a higher RPM fan if you have one spare/get one.
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Buy the way can you confirm that your PSU previously had a 120mm 12V DC 0.35A fan ? Right ?
 
cooleagle said:
Hi buddy nice to see you repairing on your own.
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Consider getting a higher current rating fan, as the last time I saw the bijli front blue LED fan it had a low RPM.

If you put some heavy loads on the PSU as in gaming at high settings I think your PSU temps will go through the roof with that fan, which may damage your PSU, do check that by testing before continuing with this setup.

If your PSU gets too hot consider attaching a higher RPM fan if you have one spare/get one.
<


Buy the way can you confirm that your PSU previously had a 120mm 12V DC 0.35A fan ? Right ?
Click to expand...

How do I test my PSU ? I can monitor the temps of my CPU/GPU but how to know whether my PSU is running safe or not ?

Yeah, I can confirm that the previous PSU fan was a 120mm 12v DC 0.35A.
 
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