Hi Mac Rumors
Today , I lost a hole day , in installing two Intel Xeon X5690 processors in my early 2009 Mac pro 4.1 upgraded to 5.1 firmware.
When I put back my old 4 core 2.26 ghz original CPUs Mac boots normal. Everything is ok. But !
With one or two X5690 Xeons no boot chimes and red light indicating CPU error on processor tray.
What can it be ? Bad CPUs ? Cant believe 2 defects in two cpus?
Im on High Sierra 10.13.6 with Boot ROM Version: 144.0.0.0.0
SMC Version (system): 1.39f5
SMC Version (processor tray): 1.39f5
Today , I lost a hole day , in installing two Intel Xeon X5690 processors in my early 2009 Mac pro 4.1 upgraded to 5.1 firmware.
When I put back my old 4 core 2.26 ghz original CPUs Mac boots normal. Everything is ok. But !
With one or two X5690 Xeons no boot chimes and red light indicating CPU error on processor tray.
What can it be ? Bad CPUs ? Cant believe 2 defects in two cpus?
Im on High Sierra 10.13.6 with Boot ROM Version: 144.0.0.0.0
SMC Version (system): 1.39f5
SMC Version (processor tray): 1.39f5