원문 게시자: GhostMik ,
Hello Everybody! Sorry for been away so long.. Ok, I SOLVED the problem! In my case what I have done: 1) I have tear all the parts out of the case (I have bought a anti ESD pad, bracelet etc.) 2) Clean everything 3) Put all the parts again inside the Mac case 4) change the CR232 Battery At first try NONE happen.. I have immediately check the DIAG LED button and see that the power led was correct light up and all the lights was mentioned before continue to behave the same especially: Led 8 - EFI Done OFF WHILE SHOUD BE ON (as stated in the Apple Service Manual) Indicates: EFI is done loading WHAT IT WORK FOR ME: First i have exchanged the power cable from the one I use for the CINEMA DISPLAY, then I have try again to turn on.. As before no chime and black screen.. BUT.. Finally usb was working (checked the red led under the Mighty Mouse) and immediately RESET PRAM (holding after hear the fan and hd spin: CMD + ALT + P + R) AND VOILA', FINALLY THE MAC PRO TURN ON, HEAR THE BOOT CHIME and no more BLACK SCREEN! I'm sorry to can' t really explain (as I don't understand well what happen) but after my investigation I can tell you: - Led 8 - EFI Done OFF in my case was ok the same - The problem is not the Firmware Upgrade by Netkas (I done it a week or more before do the cpus swap and everything was working like a charm, my problem was AFTER the cpus swap) - The SMC also is upgradable, I have found on Netkas instruction for also update it so now my Mac Pro 1,1 is a complete converted to 2,1 SO, FIRST OF ALL FOR ALL WHO ARE STACKED WITH A BLACK SCREEN AND NOT BOOT CHIME SOUND, TRY TO DO A PRAM RESET! In any case if none of my advice help you and want to try to restore the original firmware, Apple still have the cd img downloadable. Firmware Restoration CD 1.4 https://support.apple.com/kb/DL204?viewlocale=en_US&locale=en_US I would advice you to use it as last resort because i have no idea how it could behave over the netkas firmware upgrade (AS I ALREADY EXPLAIN SHOULD NOT NETKAS UPDATER THE PROBLEM). I hope my experience could help all of you..