Question about Sunon 50x50x15mm DC 12V Magnetic Levitation Fan Fan Kit

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Need quiet repl. fan (Sunon 50x50x15mm)

Fan in my mac cooling my CPU upgrade is getting very noisy and annoying.  Looking for a quieter fan.  which is quieter: mag. levitation, brushless, 1 bearing ... ?

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Re: Need quiet repl. fan (Sunon 50x50x15mm)

HEY BUDDY...............

dont forget to tell me u r problem solved or not
best regards & best of luck..

Posted on Oct 26, 2007

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Dimension 3000: P4@2.8GHz. NOISY - alway has been. Want to remove green shroud permanently, add quiet 80mm thermistor-controlled fan to CPU stock heatsink (without exciting a BIOS temp alarm), replace...

As for the green shroud, I would not recommend removing it. The computer case is designed to correctly circulate the air through the system and safely out. As for replacing the fans you can replace them with anything you like, just make sure the new fans are the same dimensions they come in szies 40, 60, 80, 92, 120, 140 and a newer 200 mm form factor so you can just measure them if you don't know the correct size. Next look at where the fans plug in, if it is a three pin plug then they fan's are kept at optimal speeds via the motherboard and bios. So they are already controlled by heat sensors / thermostat so to speak. If they are 2 pin then they just run full speed usually. For the back fan just make sure it is the right size and pin out. You can hook a 3 pin fan to a 2 pin fan plug on the board it will just run full speed all the time. For the CPU fan buy a combo fan/ sink and just make sure the sink is the same as the existing one so it will fit on the motherboard. You could probably get rid of the green shroud if you went with a really high end fan / sink for the CPU but that's up to you. For the thermal paste it is easiest to put a small blob in the center of the CPU and then use a plastic card, such as a drivers license to spread it out to cover the entire CPU, thinly and evenly. Add small amounts if you need to to cover the entire surface. Try not to have a bunch oozing out the sides although it won't really hurt if it is.

Nov 02, 2010 | Dell (6F858) Cooling Fan

2 Answers

I need a 2x2 brushless fan model # rdm5015s dc 12 volt. where do i find one please?

Perhaps try Google's Product Search?

It appears to be a fairly standard 50x50x15mm fan with a two pin type 2 connector. Try looking for a two pin 50mm fan with a thickness of less than or equal to 15mm.
A quick search I've done can be found here.

May 10, 2010 | Sanyo /San Ace DC 12v Brushless FAN Assy

1 Answer

How do i quiet this fan down? 478

What do you mean by Quiet it down? If the fan is running at an excessive speed, try to look in the Bios (Hardware monitor) settings to set the CPU fan to auto. This will provide a balance between fan speed and cooling.

If the fan itself is mechanically noisy, then you are probably looking at a shot bearing, causing it to run noisily. For the cost of a new heatsink and fan (about £20.00), its worth considering replacing it

Feb 10, 2010 | Foxconn (CMIP31S) CPU Fan

1 Answer

I need a new cooling fan, how much are they?

The old addage "you get what you pay for".....It applies here. You can get 80mm to 120mm fans for under 20 bucks, but depending on how fast they have to spool up to keep the processor cool and how well their blades have been designed determines how loud they are, especially if they have been cheaply made....poor bearings and poor blade design equals noise. Bigger fans are actually a lot quieter because to move air they do not have to turn as many rpms. Get the biggest best made fan you can that will sit confortably in the case without interference. Also, download the little program called Speedfan, it will monitor fan speeds and system temps and make adjustments to the fans to keep them in the quiet range when possible.

Jan 16, 2010 | Sony CPU FAN CPU Fan

1 Answer

My sony laptop computer has big noise when the fan start.

Hi there,

It is normal for the computer to do this. When an application you are running makes greater use of the CPU, memory, video card, and disk drives, power consumption increases, and the fan either kicks up in speed or turns on. If the sound is annoying, you may be able to reduce the fan cycles by cleaning the dust out of the computer case.

Get a can or two of Dust-Air or a similar product.

Open the case of your computer by removing the screws on the back. Some computer cases have easy-open latches, so you may not need tools. Use a vacuum cleaner to get the bigger dust bunnies out of the case, then use the Dust-air to blow out all of the nooks and crannies. Make sure to blow out the heat sink for the CPU; the vanes tend to clog with dust. Blow off the vanes of all the cooling fans, too. There will be one on the CPU, and probably a few others, e.g., most video cards have their own fans and heat sinks now.

Replacing the case fan with a quieter model, such as a Vantec, can also help:

Computer makers build systems with the cheapest parts they can get their hands on, and if you're handy, it's worthwhile upgrading.

Warm regards,

Anirban Mazumdar

Nov 05, 2009 | Sony CPU FAN CPU Fan

3 Answers

Noisy fan

You need to replace the fan. Measure the fan you have now and buy one the same diameter. Then remove the old fan and put in the new fan.

May 28, 2009 | Intel (8W501B1M3G) CPU Fan, CPU Cooling...

1 Answer

Fan Noise on Dell Dimension 8100

All computer fans have a general design.  The name in front of "fan" really refers to the designation.  You'll see case fan, processor fan, CPU fan, cooling fan, etc.  In the case of CPU/Processor fan, some are sold with heatsinks (the metal block sitting on top of your CPU).

The first thing you want to do is make sure the fan is clean.  Chances are dust buildup is causing the excess noise.

If that's not the case and you're looking to replace the fan, then you first need to find out the size of the fan. General sizes(diameter X width in mm) are listed on this page:

Generally, you're looking for something that will match the size of what you're replacing & push enough air at a reasonable noise level to cool the heatsink/CPU.  You want to stay in the area of 30dBA max for noise.  You also want to see if it has a 3-pin or 4-pin connection.

For example, if you have an 80mm fan, I would suggest something like this:

It's pretty quiet with good airflow.  Also, it has a 3-pin connection, but includes an adapter for a 4-pin connection.


Oct 27, 2007 | Dell (6F858) Cooling Fan

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