How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Chris L. Your Own Question

Chris L.
Chris L., Support Specialist
Category: Computer
Satisfied Customers: 3875
Experience:  Certified Computer expert with over 10 years experience.
Type Your Computer Question Here...
Chris L. is online now
A new question is answered every 9 seconds

Why does CPU, power, or fan rev up when in use or when I wake

Resolved Question:

Why does CPU, power, or fan rev up when in use or when I wake computer up?
Submitted: 10 months ago.
Category: Computer
Expert:  Chris L. replied 10 months ago.
Hello my name is XXXXX XXXXX X will be happy to assist you.

Are you saying that sometimes the fan becomes louder than other times?

For example if you are working on the computer the fan will get louder and when it first starts up it is loud?

Is this a desktop or laptop?

Please let me know so I can further assist.
Thank you,
Chris
Customer: replied 10 months ago.


Hi Chris


 


At times the fan gets louder as I work and it does get louder when I start it up after initial start up. In the middle of the night it might suddenly come on very loud and races for ten or fifteen minutes.and then stop. The computer is about five or six years old. My system is a desktop.


 


David

Expert:  Chris L. replied 10 months ago.
David,

Thanks for the further information.

The reason this happens is because the computer is running hot and it is trying to cool it self off. Sometimes when you first start up or come out of sleep for example you may also hear them rev up but then they will usually settle down.

If they are running loud and a lot there could be a few reasons.

First, if you are running a lot of programs or you are working on a lot of data on a large document or playing a game the processor and components will get hot so the fan will speed up to cool it. You will have major issues if it does not cool down, your processor could get fried if it is not cooled properly.

Another thing that happens often especially on an older computer is it gets filled with dust. The dust blocks the air vents and can get in the fans as well causing them to have to work harder.

A few things to try to correct are, first try running less programs at once. Look to the bottom right near the clock and see if there are a bunch of programs that you may not need that you can turn off, usually by right clicking them and choosing to quit.

If you do not have many or that does not help you are going to want to get yourself a canned of compressed air like this:
graphic

Any store that sells office supplies will sell this.

Take the compressed air and blow out all of the vents on the computer itself. If you feel up to it remove the side panel of the computer and blow all of the dust from the inside and around the fans.

Without seeing your computer in person it is hard for me to say 100% what the issue as however my best guess would be that it is just dusty inside and not getting the proper flow of air.

Also if the computer is kept in a space like under a desk make sure that nothing is blocking the vents.

Usually a good cleaning with canned air will help it run cooler and quiter.

If you need further help please do not hesitate to reply back and let me know and if you have a moment please remember to rate my service.

Thank You
-Chris
Customer: replied 10 months ago.

Chris


Thank you for the advice. I haven't cleaned the computer since I bought it and will follow your instructions. Thank you for your time.


 


David

Expert:  Chris L. replied 10 months ago.
You are very welcome David.

If you need help again please let me know.
-Chris
Chris L., Support Specialist
Category: Computer
Satisfied Customers: 3875
Experience: Certified Computer expert with over 10 years experience.
Chris L. and 17 other Computer Specialists are ready to help you

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • My Expert answered my question promptly and he resolved the issue totally. This is a great service. I am so glad I found it I will definitely use the service again if needed. One Happy Customer New York
< Last | Next >
  • My Expert answered my question promptly and he resolved the issue totally. This is a great service. I am so glad I found it I will definitely use the service again if needed. One Happy Customer New York
  • I am very happy with my very fast response. Eric is very knowledgeable in the subject area. Thank you! RP Austin, TX
  • Hi John, Thank you for your expertise and, more important, for your kindness because they make me, almost, look forward to my next computer problem. After the next problem comes, I'll be delighted to correspond again with you. I'm told that I excel at programing. But system administration has never been one of my talents. So it's great to have an expert to rely on when the computer decides to stump me. God bless, Bill Bill M. Schenectady, New York
  • The Expert answered my Mac question and was patient. He answered in a thorough and timely manner, keeping the response on a level that could understand. Thank you! Frank Canada
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
 
 
 

Meet The Experts:

 
 
 
  • Andy

    Computer Consultant

    Satisfied Customers:

    5311
    11yr exp, Comp Engg, Internet expert, Web developer, SEO
< Last | Next >
  • http://ww2.justanswer.com/uploads/EN/Engineer1010/2012-6-9_132423_jaj12a.64x64.jpg Andy's Avatar

    Andy

    Computer Consultant

    Satisfied Customers:

    5311
    11yr exp, Comp Engg, Internet expert, Web developer, SEO
  • http://ww2.justanswer.com/uploads/BA/barrenrock/2011-10-19_215925_JamesJAFinal.64x64.jpg James's Avatar

    James

    Sr. Computer Support Expert

    Satisfied Customers:

    8376
    20 years of experience building, fixing and servicing PCs and operating systems.
  • http://ww2.justanswer.com/uploads/zeyank/2009-09-26_154244_P8110079.png Ryan H.'s Avatar

    Ryan H.

    Computer Support Specialist

    Satisfied Customers:

    1741
    A+ Certified Technician - 10 Years experience working with all types of computer systems.
  • http://ww2.justanswer.com/uploads/JA/jadedangel57/2011-11-8_193134_janenewsm.64x64.jpg Jane Lefler's Avatar

    Jane Lefler

    Sr Prog Analyst / Technician

    Satisfied Customers:

    0
    Computer Programmer / Technician/ Consultant 16+ years
  • http://ww2.justanswer.com/uploads/RO/robmpreston/2013-9-23_233814_mijiFZm.64x64.jpg RPI Solutions's Avatar

    RPI Solutions

    Support Specialist

    Satisfied Customers:

    3476
    5+ Years in IT, BS in Computer Science
  • http://ww2.justanswer.com/uploads/BA/barunrath/2012-7-5_201954_Profilepic2.64x64.jpg B. Rath's Avatar

    B. Rath

    Computer Support Specialist

    Satisfied Customers:

    8671
    Certified Computer/Networking Support Specialist.
  • http://ww2.justanswer.com/uploads/FS/fszcze/2012-6-18_181848_500test.64x64.jpg Frederick S.'s Avatar

    Frederick S.

    Computer Specialist

    Satisfied Customers:

    7240
    Computer technician and founder of a home PC repair company.