Firmware UN-update?

Hi, just a quick one, i ran the firmware update hoping to fix a few "bugs" but so far its been worse (sound output levels, fan noise and temp) than better on most parts. Is there a way of uninstalling this. Perhaps re-installing osx?
Thanks in advance

I recomend reinstalling OSX - erase/install. Choose only the application you want. You really don't want to unistall firmware - besides, its stored on a chip somewhere on the logic board or mother board (not sure which) - not on your hard drive.
So reinstall - make sure u got the latest firmware 1.4f12 and let us know how you're doing

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ali brown
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open 6am to 6pm Pacific Time
You need to figure out the level of your firmware before installing 10.2 or greater. ( The PC name for firmware is BIOS. ) Installing 10.2 with a down level firmware will most likely make your iMac unusable and difficult to fix.
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Apple -> Apple System Profiler
2) Mac OS X, use the System Profiler.
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click on Hardware
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Apple PowerMac4,1 4.1.9f1 BootRom built on 09/14/01 at 13.18.04
Copyright 1994-2001 Apple Computer Inc.
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http://docs.info.apple.com/article.html?artnum=86117
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http://support.apple.com/kb/HT1387?viewlocale=en_US
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Firmware UN-update?

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