Computer noisey sunddenly - why?

Question

Our computer, a Compaq Presario SR2125UK, 3gb RAM, Pentium D 2.8ghz running Vista, is normally whisper quiet.

However, last night whilst my wife was doing some word processing, it became very noisey for about 15 seconds and then returned to normal.

It is normally a very quite computer. You have to strain your ears to hear the fan/HDD. So, we were slightly worried when suddenly the noise escalated to the level of a hairdryer at full flow. After around 15 seconds it went back to normal.

This has only ever happened once - last night.

Anyone any ideas?

Answer 1

It depends on if the noise you heard was the fan spinning up faster. This can happen if the heat reaches a certain point.

Ex: When playing games my video card fan will increase in speed. When done it slows to it normal idle level.

However, fans can become loud if the bearings are starting to wear. If this starts happening more frequently you may have a component overheating of your power supply is going.

Answer 2

Sometimes, background resources are in use.



I suspect the loud noise you were hearing was the noise of your hard drive. For example, I'm scanning my hard drive right now, and as the platters within are constantly rotating and fetching information, it is noticeably noisier.



Your computer could've been fetching some information unbenownst to you and your wife (say for a background program or some services that are in use).



My next guess would be that your CPU_Fan kicked in to cool off your processor a bit. Your computers bios might have a feature called Smart Fan enabled, such that if your CPU reaches a certain temperature, your CPU_Fan will kick in to help lower the temperature, until it reaches x degrees celsuis.



I don't feel there is anything wrong with your computer. You shouldn't be worried.



Shawn

Answer 3

This is actually quite normal behaviour.



When you start the computer up it will be very loud for just a few seconds whilst it determines the temperature. It will then go quiet.



Basically the computer got too warm and had to blast the fan up to full speed to cool it down.



Nothing to worry about.

Answer 4

It could be a lot of things, but most likely just a CD/DVD spinning up or the cpu fan spinning faster to cool off. It could be that dust is starting to build up and the fans are spinning faster to compensate.

Answer 5

take your photograph card out then try to run your comp ok it won't load your computer screen, yet you will now understand if its the photograph card which it oftentimes is you may desire to objective cleansing the fan of dirt......the two get a sparkling fan or photographs card or a sparkling fanless heatsink for the cardboard!!!! yet once you do take you g/card out unplug the ability socket first and press the initiating button to take out and average ability left interior the ability unit...... you do no longer elect any spikes of ability..... it particularly is substantial through fact the ability unit has stable modern-day flowing via it and is extremely risky certainly

Answer 6

I would try removing the case and cleaning the fan and such with an air sprayer.

Answer 7

have you updated a component recently, sounds like you need a stronger fan or power getting to your computer

Answer 8

That happened to me once, about a week before my hard drive failed catastrophically.



I don't know if that is your problem, but I would back up now, if it was me.

Answer 9

the fans are dusty clean them will stop the noise

Answer 10

these guys will fix it by replacing fan heatsink



any questions go to this website's forum

www.cheaptofix.co.uk

Answer 11

overheated...

open the PC up and check if eveything is connected

Answer 12

get new case fan