Run Apple Diagnostics or Apple Hardware Test.Launch Single User or Verbose Mode with Terminal.Power up your Mac with the Startup Manager and select your Startup Disk Manually.Quick Tips Try These Steps to troubleshoot and fix a Mac Stuck on White Screen If your Mac fails to start-up regularly, try these quick tips to troubleshoot your problem(s).
This white (or gray) screen means that your macOS or OS X can’t start because of problems with the system’s hardware or software. If this situation sounds like you or something similar, you are not alone! But then, it would get stuck on that white screen (after the chime)–no Apple logo, no processing circle, nothing, nada! What’s a girl to do? My Mac would turn on, I hear the chime and see the white startup screen. I have this MacBook Pro for repair board 820-3332-A Hello, my computer starts with 3 beeps and screen stays blankhelp please.then my laptop turns on stays blank and reboot.any atvice would be helpful tnx.Is your Mac stuck on the white startup screen and won’t boot up or turn completely on? Tryin to boot up normally, but your Mac or MacBook won’t turn on or gets stuck on the loading screen, the startup progress bar, or the Apple logo? Wondering what to do when your Mac shows you the “white screen of death?” Me too Ask a question Report Related: Imac beeps 3 times and wont turn on Macbook pro beeps 3 times and wont turn on - Best answers Mac beeps 3 times and wont. MacBook Pro :: 3 Beeps On Start Up Mar 22, 2012. Got it with 3 beeps issue have tired reflow ram replace PCH no luck I decide to replace CPU because it was getting crazy warm.Īfter replacement (I remove same CPU from Donner board) with was liquid damage but I was getting a display but it was too badly corroded to fix and many things doesn't work properly.Īfter CPU swap laptop is turning on with no beeps but there is no display no chime fan is spinning I measure board and no power on a main rails. I have replaced the RAM with RAM I know is good and it still beeps 3 times and doesnt boot. Info: Macbook Pro, Mac OS X (10.6.7), We also support apple xserves. Press the power button for 10 seconds to force shut down your MacBook. There was no liquid damage on board with 3 beeps. Hold down the power button and the Option - Command - P - R shortcut keys simultaneously for about 20 seconds. You can ask someone to help you to ensure the operation is correct. Release the keys once you hear the second startup sound from your MacBook. I have thinking maybe CPU is not connected properly but I bit worried with next soldering attempt it will die as to many times heated up. I tried also turn on laptop on SMC bypass and all missing rails have a right voltage only PPVCORE_S0_AXG2_L & PPVCORE_S0_AXG1_L are not present.Īny ideas ? Is any chance that something else could cause this issue.
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