Black screen one beep
Hi I have a Macbook pro I am getting power however the screen is black and i am only getting one beep every 5 seconds. I can not find any information for one beep.
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First try the following: Resetting NVRAM and PRAM
If that doesn't help you may have a memory issue see this TN: Beep error codes
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Thanks this is what i needed
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So what fixed your issue?
My MacBook Pro boots up. Looks like it is working fine. But after a while, sometimes 5 minutes and sometimes 30 minutes, its screen turns black and I get a single beep every five seconds. I can manually power off the MacBook, and restart normally but the same thing happens after a while.
Andy Wang さんによる
Replaced or reseated the RAM modules.
Dan さんによる