JLF_420

Q: change ram on MAc PRo

I have a MAC PRo 2x2.66 GHZ

 

  I recently upgraded the RAM and now when I push both trays in the start up light flashed on / off and does not re-boot.  I tried each tray alone and each work alone but not the combo of both trays.  

I also tried starting up while holding OPTION. APPLE, P, R and again they work seperatly but not together.

 

WHATS THE DEAL ?

Mac Pro, OS X Mountain Lion (10.8.2)

Posted on Nov 21, 2012 7:01 PM

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Q: change ram on MAc PRo

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