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Windows XP forum: why is fan so loud when i turn on computer?

by: rhodeyes1 March 21, 2012 8:54 PM PDT

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why is fan so loud when i turn on computer?

by rhodeyes1 - 3/21/12 8:54 PM

Recently my fan comes on full speed when i turn on my computer.It quiets down in maybe 10 seconds.It didn't use to do this.I have the fan setting at 'quietest' in the bios.It doesn't always do this but lately its been almost every time.What could be doing this and do I have to worry about anything?It can't be that the computer has heated up because it happens even when the computer has been off for a long time.Thank you.


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Depends on the make and model.

by R. Proffitt Moderator - 3/21/12 9:28 PM

In Reply to: why is fan so loud when i turn on computer? by rhodeyes1

Some makes do that for well discussed reasons. But without make or model, I can't see if there was a BIOS change.
Bob


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by zaidi14 - 3/22/12 4:22 AM

In Reply to: why is fan so loud when i turn on computer? by rhodeyes1

What is the model number of your PC?


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PC model

by rhodeyes1 - 3/24/12 12:58 PM

In Reply to: reply by zaidi14

I have a lenovo M52 8212.I think i have a noisy fan to begin with.I don't think it should be as loud as it gets when on high speed .Its very loud.With the computer opened up and it is difficult for me to tell which fan it is.Anyway my question was why did it start coming on at high speed(for about 10 seconds).I'm sure its not the dvd player.I don't remember it always turning on at high speed.I'm pretty sure it didn't.
Now that i mentioned it i have another question.Even at high speed should a fan be objectionably loud? The noise becomes VERY noticable at high speed.It makes it difficult to enjoy music or videos because you have to learn to block out the sound of the fan.


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It may have always done that but time

by Steven Haninger - 3/22/12 7:33 AM

In Reply to: why is fan so loud when i turn on computer? by rhodeyes1

and wear make it seem louder. The BIOS defaults that I've seen have the fan come on at full speed but trim back once safe temperatures can be determined. When you think about it, this makes perfect sense. These fans need a kick start to get moving and get lube into the bearings so driving them hard at startup seems reasonable.


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Are you sure it's not disc in your DVD/CD drive?

by Lee Koo (ADMIN) ModeratorCNET staff - 3/22/12 8:57 AM

In Reply to: why is fan so loud when i turn on computer? by rhodeyes1

Sometimes people make the mistake of hearing their DVD/CD spin in their drive when they boot up thinking it is their fan in their computer when it's not.

Just thought I'd throw it out there.

Cheers,
-Lee


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