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Thread ID: 67457 2006-03-28 12:13:00 cpu fan runs for 3 minutes every 6 minutes jimhanum (10081) Press F1
Post ID Timestamp Content User
441445 2006-03-28 12:13:00 CPU fan runs for 3 every 6 minutes even when no programmes are running

only just started

I have a HP Pavillion t580a
jimhanum (10081)
441446 2006-03-28 12:21:00 So your saying that every six or so minutes the cpu fan runs louder than usual? for three minutes?
Can you verify that its the fan? Is it a stock build of the HP machine?

Have you done anything recently to the comp like adding hardware, programs or uninstalled programs and such?
bob_doe_nz (92)
441447 2006-03-28 12:23:00 Ok - so the processor is warming up

Does Task Manager show anything eating the cpu.

Could it be that it needs the case fans cleaning.
gcarmich (10068)
441448 2006-03-28 12:36:00 dont know how to answer in the original thread

the fan does run continously but quietly then it goes loudly for the 3 min
just installed microsoft works 5 hours ago
under my user name it says junior that I am
jimhanum (10081)
441449 2006-03-28 12:43:00 Look for the "Post Reply" button to click on. Greg (193)
441450 2006-03-28 19:14:00 dont know how to answer in the original thread

the fan does run continously but quietly then it goes loudly for the 3 min
just installed microsoft works 5 hours ago
under my user name it says junior that I amI have merged your new thread back into your original thread. As Greg mentions, after the last post in this thread there is a "Post Reply" button on the bottom left of the last post box. Or if you click on the "Quote" button underneath a post, you can reply to a message with that post included as a quote - like what I have done with your post quoted above. You can then write your message underneath it.

Back to your original question. It is possible that the power supply (PSU) fan is causing the noise. If you place your hand next to the exit fan grill that is part of the power supply on the outside of your case, can you notice a increase in airflow that matches when the machine becomes more noisy?

Does the problem continue after you have restarted the machine?
Jen (38)
441451 2006-03-29 01:50:00 There are some system which control various fan speeds based on temperature. I'm guessing your PC's not one of them.

I found some fans will inexplicably resonate for a time then stop. It usually indicate something loose, or needs checking.

I suggest open the case, pin back any loose hair or ties, and see if you can pinpoint what exactly is making the noise. That fan probably needs replacing.
kingdragonfly (309)
441452 2006-03-29 03:03:00 I've got a HP Brio box whch starts and stops fans by itself. I haven't bothered to time the on/off ratio. ;) I assume it runs fans when needed.

Maybe the room is a bit cooler, now summer is over, and the computer has noticed. ;)

Was it louder all the time previously in warmer days? If so, it's probably "working".
Graham L (2)
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