Question about Dell Dimension 5150 (DIM515MIN) PC Desktop

1 Answer

Should my fan run all the time on desktop dimension

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Dell Master
  • 5,660 Answers

Yes, the computer case fan, and the Power Supply fan should run constantly.

If this is in reference to a Dimension 5150, there is one computer case fan in the front. This fan pushes air through a plastic tuned port, (Shroud), onto the Heatsink, which sits on top of the Processor.

http://support.dell.com/support/edocs/systems/dim5150/en/sm/index.htm

The above link is to Dell Support, and the Service Manual for the Dimension 5150.
Technical Overview shows the inside of the computer.

Processor's have a thermal limit. Once they exceed this thermal limit, or temperature, the Processor turns off. (BIOS turns it off)
This is a Fail safe feature built-in to keep the Processor from burning up.

Desktop computer fans run all the time, unlike laptops.
However the fans should not run at full speed all the time.

If your desktop computer fan sounds like a 'jet engine' constantly, there may be internal hardware problems, for one.

1) It may be that the thermal paste has dried up.

The top of a Processor's case, and the bottom of a Heatsink are not perfectly smooth.
There are 'Pits, Hills, and Valleys'.

The above mentioned imperfections cause a void. This void is an air pocket.
Air is an Insulator, not a Conductor.

Thermal paste fills these voids, and is an excellent conductor of heat. Transfers the heat from the top of the Processor's case, to the bottom of the Heatsink.

Example of a typical Heatsink/Fan combo,

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=3451342&CatId=493

The Heatsink is the finned aluminum looking object under the fan.
(The Dimension 5150 does not use this kind of Heatsink/Fan setup. I included the link to show a typical Heatsink. The front computer case fan, pushes air through a plastic shroud which encases the Heatsink, in a Dimension 5150)

Solution is to Thoroughly clean the top of the Processor's case, and the bottom of the Heatsink, and correctly apply fresh, new thermal paste. (Average cost of thermal paste for this application is $6)

[NOTE*
Observe Anti-Static Precautions!]

2) If the inside of the computer is dirty, as well as the inside of the Power Supply, this will also cause the cooling fan/s to race at high speed.

Solution is to use a can, or two of compressed air for computers, and clean the inside of the computer, (Especially the fins on the Heatsink), and the inside of the Power Supply.

[Again, observe Anti-Static Precautions]

Posted on Sep 12, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Cpu fan can't run on dell dimension


You can clean or replace the fan.
Get the manual from www.dell.com/support
You can download it free and look up the fan repair instructions.
Hope this helps.

Mar 05, 2012 | Dell Dimension 2350 PC Desktop

1 Answer

Dell Dimension 4600C Compurter running fast and


Try to check the fan and the inside of the desktop for any dirty things in there. Especially check the fan to see if something is stuck!

Mar 04, 2011 | Dell Dimension 4600 PC Desktop

1 Answer

Every time i turn on computer is said cpu fan is not detected


The fan on the CPU is not running fast enough or it is not running at all replace it before it cooks the CPU and the motherboard.

Feb 18, 2011 | Dell Dimension 2350 PC Desktop

1 Answer

My Dell dimension 9200 fan races like mad occasionally when first turned on. I press the on/off button several times and it goes back to normal. Sometimes I have no probem other times I do. It seems...


It is normal to have that but you should try checking if there is a dust on the fan of your computer or try checking on wjat application are you running that makes your computer seems to be racing.

Sep 06, 2010 | Dell Dimension 9200 PC Desktop

1 Answer

Noise from unknown source


Grrrrrrr - Could be CD running, Could be Fan on the CPU, which if not fixed will kill you main chip, could be power supply fan, check in the back and see if fan is turning consistanly ( I think that is how you spell that) If you know how to remove covers, take side off and look at fan on the CPU or other fans and when you hear the Grrrrrrr se if you can tell where it is comong fro, also some hard drives will make a sound as they get older.. Good luck....

Apr 23, 2009 | Dell Dimension 5150 (DIM515MIN) PC Desktop

1 Answer

Fan won't stop running


The fan should be running all of the time in order to keep the system cool.

If it seems to be working a lot harder than normal the computer may be over heating. Make sure there is plenty of ventilation around the pc.

Mar 17, 2009 | Dell Dimension 4600 PC Desktop

1 Answer

Blower/fan runs fast any time, shuts off, restarts for long time run.


What kind of system is this? There is a BIOS setting for performance. If you have that set to "performance" then the system will be louder since the fans will run faster all the time to keep the system as cool as possible for performance.

I would lso try using compressed air to dust all vents and fans in the system. If dust is building up, that will act like an insulator and trap heat in the system. When heat builds in the system, the fans will run faster to try to cool the system down.

Mar 14, 2009 | Dell Dimension™ 4600C PC Desktop

1 Answer

Screen freezes often


check the CPU fan if it is working fine
clean the dust on cpu fan
try cleaning the ram
after trying all above then also if u face the same problem try checking the power supply connectors which connect your motherboard
and the last 2 options will be your motherboard or processor

Dec 27, 2008 | Dell Dimension 2400 PC Desktop

Not finding what you are looking for?
Dell Dimension 5150 (DIM515MIN) PC Desktop Logo

392 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dell Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18387 Answers

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

mukhtar21 shaikh
mukhtar21 shaikh

Level 3 Expert

2017 Answers

Are you a Dell Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...