Apple moderator acknowledges false G5 fan error message

Several MacFixIt readers have received the error message "2FAN/4/8: Fan for BACKSIDE" when running Apple's hardware diagnostic test on their new Power Macintosh G5 systems.

A moderator on the Apple Discussion boards has now provided official confirmation that this message may be erroneous, and suggests that readers who receive this or another fan failure message open the G5 and check that both the drive bay fan and the PCI slot fan are spinning. If they are, nothing is wrong.

If either fan is not spinning, the moderator suggests taking the computer to an Apple Authorized Service Provider for maintenance.

Feedback? Late-breakers@macfixit.com.

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