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mac pro3.1
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Mac Pro 3.1 not booting after RAM upgrade
Hi Everyone, Before my troubles started I had 2x2gb in riser board A and 2x2gb in riser board B and everything was working fine. However today I came to install 2 new 4gb modules by placing them into slots 1 & 2 of riser B and placing the 4x2gb modules into riser B and now it's all gone...