On every post I have find googling around NO ONE ever report the behave of the Led 8 in they'r Mac Pro: What lead me here before buy a new logic board or power supply is the LED 8 from the DIAGNOSTIC LEDs. Also removed Airport Card.įor test purpose I also have try to swap back the old CPUs but the things remain the same NO CHIME, NO BOOT. Swapped out the GPU, no chime, same with the Ram dims, I have try to pull out every dims and leave only 2 in the upper riser althought the memory riser diagnostic leds are all OFF (so no faulty dimms). I have try to reset again the SMC and change again the Logic Board Battery but nothing, the Mac start up but NO CHIME. Led 8 - EFI Done OFF WHILE SHOUD BE ON (as stated in the Apple Service Manual) Indicates: EFI is done loading When were time to turn on, the Mac was 'working' but NO CHIME and black screen.ġ) Before proceed to turn on the Mac I have reset the SMC with his own button on the Logic Board for 5 secondsĢ) closed the case and attached back the AC plugģ) the Mac immediately turn on WITHOUT pressing the POWER BUTTON (light on the power button is on and stable)Ĥ) Dvd drive turn on, front and rear fan spin normally and the HD drives other than the SSD Boot, spin.ĥ) No Chime - No Boot - no chance to use keyboard for a NVR reset I have choose to upgrade my Mac Pro with a matched pair of Xeon X5365 (I've already successfully done this kind of operation a lot of times).Īfter I complete the CPUs swap and bring back all the inside of the Mac Pro (cleaned everything), I also changed the Logic Board Battery, I have done all of these upgrades successfully without any problems till the CPUs swap. Netkas 2.1 Firmware Update (since I need to upgrade CPUs for have more computing power) Ati Radeon 5770 HD 1Gb (Original Apple not flashed from Pc hardware) Mac OS X 10.9.5 with TIAMO Boot (SFOTT) This time I have decide to take time to upgrade my old: I'm an expert user and have repaired, tweaked, hacked a lot of devices so for me Apple hardware and software are thing that i'm deal with almost every day. I'm little late I know but only in these days I have had the change to upgrade my Mac.

I hope to have some advice about my situation with my Mac Pro 1.1.

Mac pro 1.1 cpu upgrade x5365