M8493 Power Mac G4 QuickSilver CPU Heat Sink $25.00 Single Processor 733 or 867 MHz M8493 Power Mac G4 QuickSilver CPU Heat Sink quantity Add to cart Add to Quote Continue Shopping Category: M8493 Power Mac G4 Quicksilver Description CPU Heat sink assembly for single processor, Apple 076-0883, stamped 805-3097. For the Power Mac G4 QuickSilver (not 2002). Comes with straps as pictured.