wont start

Hows it going everybody. My Imac mid 2011 (27 inch) has been experiencing random fan noises/lines shooting directly down the center. Today when I try power on, it goes to the routine the apple loading screen then goes to a white screen - and thats it. I tried a PRAM / SMC reset. It will not...

Hello Everyone, I have a problem and I will be crazy. The problem is my Mac Pro 5.1 has a power issue. when I plugged the power both CPUA and CPUB Overtemp LEDs are lit red 0.5 sec then they off just still 5v LED light. but that 5v LED light very soft. When I pressed the Dıag button that 5V...

My macbook pro recently started having problems including rebooting itself often and sometimes getting stuck in reboot loops for a long period of time. Now suddenly the laptop wont even turn on. The battery indicator works and indicates a full charge. When I press the power button the fan...

Please advise if you think it could be the logic board/harddrive/SATA cable or another issue. Thanks in advance! MacBook Pro Retina 13" (Late 2013) Model A1502 C02LJ7G9FH01 500gb SSD Bought Nov 5th 2013 from Apple Store Sydney Australia Live in Uk Not under Apple care warranty Crash...