Dell OptiPlex GX520 PC Desktop Logo
Posted on Jun 20, 2009
Answered by a Fixya Expert

Trustworthy Expert Solutions

At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.

View Our Top Experts

CPU fan runs at high speed and won't boot

Dell OptiPlex CPU FAN is runing at high speed

Answer This Question
  • chajackson Jun 20, 2009

    It never gets that far in the POST. Nothing seems to be overheating, CPU or HD, all connections are tight.

×

3 Answers

Anonymous

Level 1:

An expert who has achieved level 1.
New Friend:

An expert that has 1 follower.

  • Contributor 1 Answer
  • Posted on Oct 24, 2009
Anonymous
Contributor
Level 1:

An expert who has achieved level 1.
New Friend:

An expert that has 1 follower.

Joined: Oct 24, 2009
Answers
1
Questions
0
Helped
3568
Points
1

Check the power supply for problems.

My computer wouldn't run thru the post up, no beep codes, only the fan running on high. The power switch didn't shut the computer down, it needed to be turned off at the power supply, or unplugged.

I replaced the motherboard to no avail. Only after changing out the power supply did it work correctly.

My theory is that the power supply quit supplying power to the motherboard, but kept supplying 12 volts to the fan.

The good news is that power supplies are cheaper than motherboards and easier to replace.

Anonymous

Level 3:

An expert who has achieved level 3 by getting 1000 points
All-Star:

An expert that got 10 achievements.
MVP:

An expert that got 5 achievements.
Vice President:

An expert whose answer got voted for 100 times.

  • Master 952 Answers
  • Posted on Jun 20, 2009
Anonymous
Master
Level 3:

An expert who has achieved level 3 by getting 1000 points
All-Star:

An expert that got 10 achievements.
MVP:

An expert that got 5 achievements.
Vice President:

An expert whose answer got voted for 100 times.

Joined: May 01, 2009
Answers
952
Questions
1
Helped
198564
Points
2713

Change the setting in the BIOS menu. reboot your computer.. when you see the dell logo.. press F1 (or F2 if F1 doesn't work) button until you see the BIOS screen. Check for fan options and change it

Ad
Daniel Wakefield

Daniel Wakefield

Level 2:

An expert who has achieved level 2 by getting 100 points
MVP:

An expert that got 5 achievements.
Governor:

An expert whose answer got voted for 20 times.
Scholar:

An expert who has written 20 answers of more than 400 characters.

  • Expert 142 Answers
  • Posted on Jun 12, 2013
Daniel Wakefield
Expert
Level 2:

An expert who has achieved level 2 by getting 100 points
MVP:

An expert that got 5 achievements.
Governor:

An expert whose answer got voted for 20 times.
Scholar:

An expert who has written 20 answers of more than 400 characters.

Joined: Apr 04, 2011
Answers
142
Questions
0
Helped
29077
Points
441

Take your memory out and try turning it on. You should get a beep code. Put one memory stick back in and turn it on. If the fan still runs high try a different memory slot and if that does not work try a different memory stick.
My experience shows that their could be a memory problem.

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

0helpful
1answer

Hi, I am using Dell optiplex 360 pc. The pc has got a problem. Its fan is running high speed. Some time the pc is shutting down it self. I have change the power supply box. But still the problem is...
Either your CPU or motherboard has a problem.
Read full answer
Dec 08, 2012 • Dell OptiPlex GX400 PC Desktop
0helpful
1answer

Dell optiplex gx110 will not start
The power supply fan is running or the CPU fan?
Read full answer
Nov 01, 2012 • Dell Computers & Internet
1helpful
2answers

My computer dell gx 620 desktop fan is running fast and it keeps on restarting and hanging especiall during heavy games and also videos and the fan is running fast
When the CPU overheats then it will shut down (i.e. thermaloverload) and won't boot up again until it has cooled down. If this is theproblem is not fixed then the CPU will eventually fail.
A faulty fan causes the problem or the fan and heat sink assembly are cloggedwith dust.
Check the CPU fan to see if it spins freely, if not replace the fan.
If the fan and heat sink is clogged with dust the remove the dust and make surethe vents are clear and dust free. Use a can of compressed air to do this.
Read full answer
Aug 30, 2011 • Dell OptiPlex GX620 PC Desktop
0helpful
1answer

Why is my dell optiplex GX260 CPU fan is very fast ?
Usually the fan regulates its own speed (or rather the BIOS does) in relation to the current heat, you may have heat/environmental issues, or power issues. However I would first check to see that the fan speed isn't statically(permanently) set to a high speed. You can check this in the BIOS, as the machine starts up it will flash a small message ( For Setup or For Setup, something like that), hit the stated button to enter your BIOS, under 'Thermal' or 'Hardware' you should be able to find fan speed.
Read full answer
Aug 22, 2011 • Dell OptiPlex GX260 PC Desktop
2helpful
1answer

I have dell optiplex gx280 computer.i am facing problem of CPU high fan speed when i turn on the PC.it goes to full noise like a jet fighter and nothing get appeared on the screen and fan continuously gone...
dells usually go full blast on power up then slow down to normal,sounds like fan is not responding to slow down signal i would try replacing fan, its got to be a dell fan
Read full answer
Jan 08, 2011 • Dell Optiplex GX280 (99301) Motherboard
0helpful
1answer

My cpu fan speed is countinuely high guide me how to low the fan speed
The speed is determined by a cause ..and to make it worked like It used to , you have to eliminate the cause...It probably has a dirty heat dispenser ..and the cleaning will make it run smooth again ...but also check the bios settings for the fan ..For dell there are available more than one modes..and you can go to bios and see which way is set ..Select the quiet mode and save changes on exit
Read full answer
Sep 30, 2010 • Dell OptiPlex GX520 PC Desktop
3helpful
1answer

Optiplex gx280 won't boot and cpu fan goes faster
Sounds like a bad motherboard, I try resetting the bios , removing everything but the video , could be a bad power supply too (if you have one jump the wires in there as a test). you can buy those dell MBs cheap on fleabay.
Eric

I’m happy to help further over the phone at https://www.6ya.com/expert/eric_ab7c09ec01841771

Read full answer
Jul 30, 2009 • Dell Computers & Internet
1helpful
2answers

Dell GX280 High Speed Fan and No Display.
i had same problem today and i tested my machine and solved the problem at last.
the problem is the thermal value that your mainboard sets for your cpu.
please replace the mb.
ps: before this process,i tried almost everything . cpu fan , memory , cpu , cables ,case ... everything. but the problem is on your mb.
Read full answer
Feb 04, 2009 • Dell OptiPlex GX280 PC Desktop
0helpful
1answer

I have a dell optiplex GX298 that I am trying to fix but i do not have any manual. the problem is that I cannot identify the fan speed and sensor pins for the cpu fan, hense i keep getting the pu fan...
You should try to find a fan that is compatible with the motherboard. if you try to "make one fit" you could end up burning up the CPU
Read full answer
Feb 01, 2009 • Dell (8N816) Motherboard
0helpful
3answers

GX280 - is it the motherboard?
Go here and download this program.

http://www.download.com/SpeedFan/3000-2094_4-10067444.html

This program will control your fan speed based on your cpu temp. It's main use is to quiet fan noise.
Read full answer
Dec 15, 2008 • Dell Optiplex GX280 (99301) Motherboard
Not finding what you are looking for?

View Most Popular

OptiPlex GX520 PC Desktop

  • Computers & Internet

Related Question

Hi, I am using Dell optiplex 360 pc. The pc has got a problem. Its fan is running high speed. Some time the pc is shutting down it self. I have change the power supply box. But still the problem is...

  • Dell OptiPlex GX400 PC Desktop

Related Topics

3,578 views

Ask a Question

Usually answered in minutes!

Popular Questions

Unsupported memory configuration.please populate dimm1

Dell Optiplex 755 Desktop Desktop...

I have a dell optiplex gx620 that won't turn on?!

Dell OptiPlex GX620 PC Desktop

Dell gx270 ethernet controller driver download

Dell OptiPlex GX270 PC Desktop

My optiplex 960 does not turn on

Dell OPTIPLEX 960 MT Desktop...

Dell GX150 - Power light flashing orange

Dell OptiPlex GX150 SF PC Desktop

Check Out the Mobile Browsers Report
Check Out the Mobile Browsers Report

View all Fixya Reports

Top Dell Computers & Internet Experts

Grand Canyon Tech
Grand Canyon Tech

Level 3 Expert

3867 Answers

SmartAviator
SmartAviator

Level 3 Expert

1124 Answers

Brad Brown

Level 3 Expert

19187 Answers

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

Answer questions

Manuals & User Guides

PDF Manual
. OptiPlex GX520 PC Desktop Manual

OptiPlex GX520 PC...

Loading...