How to fix a Mac Pro 2006 boot loop issue?

I have a Mac Pro 2006 version and once I turn it on and it load it restarts half way threw and repeats and I can not fix I’m willing to reset everything but I have no way to because it will not turn on


[Re-Titled by Moderator]

Earlier Mac models

Posted on Aug 17, 2024 10:02 AM

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9 replies

Aug 17, 2024 11:05 AM in response to alton266

Has this been stored a long time? If so, there are electrical contacts that affect startup that are likely oxidized:


  • Remove the internal backup battery ("PRAM" battery) and set it aside† for now.
  • Remove and reseat all RAM modules
  • Remove and reseat graphics cards and other PCIe cards
  • Disconnect the cable from the power supply to the logic board and reconnect
  • Disconnect the power and data cables from hard drives and reconnect


Only then try starting is Safe Mode. Your Mac Pro is a Intel Mac, so use that instruction set. If the computer started in Safe Mode. let it sit in Safe Mode for about 30 minutes to insure all disk repair that SM can do is complete. Then try a normal restart.


If you have the original system install/restore disks that shipped with the computer, try booting from CD/DVD 1, holding c while booting.


† — if the computer was stored for more than a few weeks with the PRAM battery installed, the battery is surely extremely dead. Replace it using a common 3V CR 2032 lithium battery.



Aug 17, 2024 10:50 AM in response to alton266

Do you get the startup Chime? if so, your Mac has passed its power-on self test, and is working. if a boot device with good software can be found, booting is likely.


What exactly appears on the screen, in what order? solid apple, progress bar, LONGER progress bar, prohibitory symbol, blue screen, large red X, something else? and about how much time between these things showing up?

Aug 17, 2024 10:34 PM in response to alton266

alton266 Said:

"I did everything you told me and it worked but it will not connect to the Wi-Fi so I ran a Ethernet cable but then i cannot factory reset because they say the only way to do is to have a apple keyboard because there is specific keys I need and I don’t have one"

-------


Use an Apple Keyboard:


Use craigslist:

Apple Magic Keyboards aren't all that expensive. So, put a post up on craigslist, maybe making it a barter post. Trade a calculator for it (seems a calculator would be a demanding trade, for those looking to head back to school, and parents don't want to pay a fortune for it.).

Aug 21, 2024 2:08 PM in response to alton266

alton266 wrote:

i cannot factory reset because they say the only way to do is to have a apple keyboard because there is specific keys I need and I don’t have one

If you are using a Windows keyboard, then the Windows (aka Meta) key is the Command key. The Alt key should be the Option key. Control key is the same for both Windows & macOS.


How to fix a Mac Pro 2006 boot loop issue?

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