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I need your help.

I bought a Mac Pro in September, 2014. I had problems of re-starting the computer after sleep mode. I find three wired things. 1) After the computer was asleep for a while, I opened the lid and it took long time to show me the log-in window. 2) When I was using the Mac Pro computer, the screen suddently became black. Then I closed the lid and opened the lid again. It took long time to show me the log-in window. 3) When I am not using the computer, the computer automatically switches to asleep. Then when I try to start up again, it usually takes me long to start up again, sometimes, I have to close the lid and open the lid again to be able to start the computer up.


Here is my computer information:


15-inch MacBook Pro with Retina display


User uploaded file
With the following configuration:
User uploaded file
2.8GHz Quad-core Intel Core i7, Turbo Boost up to 4.0GHz
16GB 1600MHz DDR3L SDRAM
512GB PCIe-based Flash Storage

Intel Iris Pro Graphics and NVIDIA GeForce GT 750M with 2GB of GDDR5 memory

Please help me!


Thank you


Yannan from Halifax

Posted on Mar 31, 2015 8:32 PM

Reply
3 replies

I need your help.

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