iMac G5

The iMac G5 was a series of desktop Macintosh computers designed and built by Apple Inc. using the PowerPC chip architecture. It was the last line of iMac computers that used a PowerPC chip, making it the last of the iMacs that could run Mac OS 9 (Classic) applications. In August 2004, the iMac design was overhauled. By this time, the PowerPC 970 chip had been released and was being used in the Power Macintosh G5 line. Famously, the Power Macintosh G5 needed multiple fans in a large casing because of the larger heat output from the PowerPC 970. Apple's new iMac design managed to incorporate the PowerPC 970 into an all-in-one design with a distinctive form factor. The new design of the iMac used the same 17 and 20-inch widescreen LCDs, with all of the main logic board and optical drive mounted directly behind the LCD panel; this gave the appearance of a thickened desktop LCD monitor.
The iMac G5 was updated in October 2005 with a thinner design, an iSight webcam mounted above the LCD, and Apple's Front Row media interface. This version had a slightly bowed back and lacked the VESA Flat Display Mounting Interface of the earlier iMac G5s.

There are many consumer posted reports on the Internet[1] linking the iMac G5 with overheating issues most typically related to the bad capacitor plague affecting both the first and second generation iMac G5 motherboards, and power supply units. Also, some owners reported a "vacuum cleaner mode", where the iMac G5 beeps three times and starts its processor fan at full speed, also due to hardware problems[citation needed]. There was also a problem in the internal SuperDrive, which could throw discs instead of ejecting them, due to problems in the drive bezel[citation needed]. The possible defect renders the machine useless with respect to damages like a burnt out logic board, a smoked power supply, and other internal component failures. Apple has extended warranties on specific serial-numbered iMac G5 models, but has not issued a recall.

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