Fan problem (HP)

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I have a HP Pavillion 4398 notebook, and its fan keeps working all the
time when i use it connected to an AC source.

When i use my computer with battery power, the laptop is perfectly
quite and fans are functioning properly, but whenever i switch to AC
source, fans start working and never stop. I understand that the
computer is not making any energy concumption when working plugged in
but the fan noise is something i dont like, and that is why i want my
computer to work all the time quietly as if it is working with the
battery all time.

Is there any way that i can fix this problem and make my fans work
less? I loaded a profram called notebook hardware controller but it
didnt help me.

Thanks for helps....

Re: Fan problem (HP)

could check into a bios upgrade there might be a fix for it or maybe it was
designed to work that way.
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Re: Fan problem (HP)

I actually tried the bios update but it didn't resolve my problem. It
is possible that the computer is designed to work that way but there
should be a way of controlling this fan!!! Because it works less when
i am using the computer with battery power....

Re: Fan problem (HP)

If you haven't yet, look at the CMOS setup and check to see if there
may be some
way to adjust the fan setting.

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