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My Mac Pro wont turn on or startup at all

My Mac Pro wont turn on or startup at all

So i have a late 2009 mac pro that i got from a family member. Up until last year October it was still working and operational but now i cant get the thing to work. I dont want to sell it as it is a beast of a system and would like to use it again. For those of you wondering i have replaced the small 3v lithium ion battery and theres nothing wrong with the power supply or the logic board. I cant jump the power pads and the gpu doesnt seem to have any problems either. Can anybody please help me?

Asked by: Guest | Views: 88
Total answers/comments: 1
bert [Entry]

What monitor showing? no signal detected?Is it single CPU or double CPU? If it is double CPU then whether using single CPU (on the right side one after removing the left one) or switching the CPU between them (partially, temporarily) solve the problem (rebooting with loud fan spin)?consider CPU tray problems?