Bought and installed a new battery for my Mac Book Pro 5.1, intel Core 2 dual, the computer makes a lot of noise! The noise disappears in sleep mode. What can be done?

Bought and installed a new battery for my Mac Book Pro 5.1, intel Core 2 dual, the computer makes a lot of engine noise! The noise disappears in sleep mode. What can be done?

I bought it from Other World Computer last week for $95. 3rd party, I suppose.

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    Give this a try:
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    Lion (50GB say)
    Bootcamp (50GB say)
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