Mac ATI X1900 XT Quiet Cooler Swap (Accelero X2)     Accelero X2 cooler.     http://www.xlr8yourmac.com/Graphics/Mac_X1900XT_Silent_Coole...     tags: AcceleroX2 bigmac osx macpro cooler Power Mac G5 (Late 2005) and Mac Pro: Graphics card compatib...     Graphic cards for Mac Pro (Original) NVIDIA GeForce 7300 GT ATI Radeon X1900 XT NVIDIA Quadro FX 4500 (part number 630-7532 or 630-7895) NVIDIA GeForce 8800 GT (part number 630-9492), offered as an upgrade kit. Note: The NVIDIA GeForce 8800 GT card requires at least Mac OS X v10.5.2 with the Leopard Graphics Update 1.0 or the computer may not start up properly.     http://support.apple.com/kb/HT2848     tags: osx macpro megamac Apple - Support - Discussions - Sleep mode issue - won't go ...     http://discussions.apple.com/thread.jspa?threadID=1847877     tags: osx macpro