Noise when booting from external firewire drive

When booting from a Maxtor drive with OS10.3.9 to the iMac G5 with Tiger the fan makes a lot of noise. Why?
When I reboot into Tiger the fan is normal.
Reasons?
Thanks

The fans are controlled by code in the OS you boot from. It sounds like the OS you have on your external Maxtor is older then your iMac G5. As a results it may not have the needed fan control code. When that occurs, the Firmware in the iMac, sets the fans to a high speed to ensure your computer will not overheat.
Tom N.

Similar Messages

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    My colleague has just decided to format and recreate the OS installation on the external drive.

  • Boot from external Firewire Drive-cannot repair or optimize internal drive.

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    Hi
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    baltwo wrote:
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    Apparently my internal HD on the powerbook has died as it repeatedly gives me the black screen "restart" message and re-install of system software fails.
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  • Tiger won't boot from external firewire

    Installed 10.4.3 DVD on clean external firewire (Extended/Journaled). Before I installed Tiger, I ran updates, and repaired permissions. Everything looked good to me.
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