MacBook Pro won't turn on. Beeps every 5 seconds.

melidramatic · melidramatic #1 (**permalink**)

10-28-2011, 06:07 AM

Help ... anyone. My Mac Book Pro is just over a year old and it won't turn on. It was literally working fine one day. I shut it down and the next time I went to turn it on, it wouldn't. I instead get a single beeping sound every 5 seconds. The LED on the front of the computer also blinks one time in sync with the beeping. Any advice?

dtravis7 · dtravis7 #2 (**permalink**)

10-28-2011, 06:39 AM

Single beep. Let me check. I know 2 and 3 beeps is usually bad RAM. BRB.

Ok check this URL.

http://support.apple.com/kb/HT1547

Says one beep is no RAM installed. Check your RAM. Is it seated all the way down? You might remove it and re-seat it.

alexorralex · alexorralex #3 (**permalink**)

11-14-2011, 07:15 PM

I have the same problem and just re-seated my RAM. it's still beeping away. anything else I can do?

chscag · chscag #4 (**permalink**)

11-14-2011, 08:05 PM

Make sure it's the correct memory for your machine. Try swapping the modules with known good ones.

dtravis7 #2 (permalink)
Member Since: Jan 04, 2005 Location: Modesto, Ca. Posts: 25,784 Mac Specs: iMac C2D Late 2007 20" with 10.8.3, Macbook Santa Rosa 4GB Ram OSX 10.8.3	10-28-2011, 06:39 AM Single beep. Let me check. I know 2 and 3 beeps is usually bad RAM. BRB. Ok check this URL. http://support.apple.com/kb/HT1547 Says one beep is no RAM installed. Check your RAM. Is it seated all the way down? You might remove it and re-seat it. ...Dennis Mac-Forums Community Guidelines
	QUOTE Thanks

chscag #4 (permalink)
Member Since: Jan 23, 2008 Location: Fort Worth, Texas Posts: 31,976 Mac Specs: 21.5" iMac 2.5 GHz i5, iPad 3rd Gen., 3 iPods	11-14-2011, 08:05 PM Make sure it's the correct memory for your machine. Try swapping the modules with known good ones. Community Guidelines
	QUOTE Thanks

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MacBook Pro won't turn on. Beeps every 5 seconds.

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melidramatic #1 (permalink)
Member Since: Oct 28, 2011 Posts: 1	10-28-2011, 06:07 AM Help ... anyone. My Mac Book Pro is just over a year old and it won't turn on. It was literally working fine one day. I shut it down and the next time I went to turn it on, it wouldn't. I instead get a single beeping sound every 5 seconds. The LED on the front of the computer also blinks one time in sync with the beeping. Any advice?
	QUOTE Thanks

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