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The Mac Pro First Generation is an Intel Xeon-based workstation computer manufactured by Apple Inc. The first generation model includes the machines from 2006 through 2008.

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Only booting in safe mode cant get AHT running

What still works is:

  • Mac Pro starts to boot
  • gives the chime
  • Apple logo,
  • spinning wheel
  • blue/gray screen
  • HDD seems to do some more but the screen stays blue/gray.

Thats it.

In save mode it does boot completely.

Please advice in which steps to take to find the cause of this problem.

Extra info:

Mac Pro

2.66GHZ Xeon quad core.

2x512MB RAM

2x1GB RAM

250GB HDD in bay 1 (OSX 10.5.8)

250GB HDD in bay 3 (data)

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Have you tried resetting the SMC? Resetting the SMC

Also note Apple has a extended warranty on the ATI Radeon display adapter Apple TN

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15 Comments:

Graphics card is a Nvidia 7300GT

So no extended warenty.

Are there any tests i can run in safe mode?

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Yes you could give the AHT a try: http://support.apple.com/kb/HT1509

by

tried to run AHT but that is not starting.

when i boot holding the D nothing happens !

I removed al HDD's

put i a blank HDD

Clean install of Snow Leopard.

This setup also only boots in save mode....

Is there any trick to start AHT ? Verbose mode maybe?

by

Where did you run AHT from the DVD or HD? You need to run it from the HD in safe mode.

by

I tried from dvd with the D pressed white booting.

how do i run it from HDD?

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