The problem seems to affect most units equipped with Nehalem CPU bit also several iMac Core i5 and i7 configurations. It translates into a sudden and excessive increase of the CPU temperature leading the fan to go full speed as soon as you start using the audio resource of those computers. Several tests and experiments performed by unfortunate users seem to define the integrated audio solution of the chipset as the origin of this problem. If you use an audio PCI card, the problem disappear as the audio will directly be managed by the card and not the audio integrated into the chipset. Last but not least, this bug is NOT present when running Windows 7 on the same computers so indicating a clear issue with the OS/drivers. It is clear that Apple is aware of this problem as hundreds of reports have been posted on Apple discussion forum and other Mac-dedicated websites. According to the last information available, Apple would be working on a fix, but it is time to release quickly especially in one consider t