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Old Jul 8, 2011, 01:05 PM   #1
lookitsgabe
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Join Date: Jul 2011
Freezing and three beep intervals?

Hello, I have a macbook pro early 2011, here are some specs:

Model Name: MacBook Pro
Model Identifier: MacBookPro8,1
Processor Name: Intel Core i5
Processor Speed: 2.3 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache (per Core): 256 KB
L3 Cache: 3 MB
Memory: 4 GB
Boot ROM Version: MBP81.0047.B0E
SMC Version (system): 1.68f96
Sudden Motion Sensor:
State: Enabled



I've been having this issue with my macbook where it freezes up and beeps at me three times in an interval until I do a hard reboot. I sent my macbook to apple care already and it was already sent to the depot where it had its logic board replaced. I researched the patterns of the beeping, and the 3 beep intervals meant a ram problem, but the depot didn't detect a problem with my ram.

So I'm wondering, why is this happening to my mac?
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Old Jul 8, 2011, 01:44 PM   #2
zettahertz
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I just had it occur to me once when i was playing a game, on a 2011 MBP 15", only change is I replaced the HD with a 120gb Corsair Force 3 SSD.

I ran a memory test on mine (2 passes) and it seemed fine. Not sure what caused it either.

Just wondering, do you also have an SSD?
What were you doing when it froze?
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Old Jul 8, 2011, 02:27 PM   #3
Detrius
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Just because they didn't find a problem doesn't mean there isn't one, and just because it passed two iterations of a memtest doesn't mean it won't fail on the tenth.
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Old Jul 8, 2011, 03:04 PM   #4
zettahertz
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is the 3 beeps ALWAYS related to a memory issue, corrupt memory / defective slots or logic board? Just wondering if overheating can cause it, or something w/ the SSD. I would think i'd be getting beachballing for the latter though.
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Old Jul 8, 2011, 05:24 PM   #5
lookitsgabe
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Quote:
Originally Posted by zettahertz View Post
is the 3 beeps ALWAYS related to a memory issue, corrupt memory / defective slots or logic board? Just wondering if overheating can cause it, or something w/ the SSD. I would think i'd be getting beachballing for the latter though.
They replaced my logic board. It wasn't overheating because I was only running safari when it froze.

and I haven't added any hardware to my pro, so if it came with an SSD then yes.

corrupt memory? What would I need to tell apple, like what part of my hardware would I tell them is faulty?

Last edited by lookitsgabe; Jul 8, 2011 at 05:50 PM.
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Old Jul 8, 2011, 06:28 PM   #6
zettahertz
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yeah, corrupt RAM modules. That's one of the causes of the 3 beeps, but it seems like most other people get it right when they boot it up.

How often is this happening to you?
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Old Jul 8, 2011, 07:03 PM   #7
lookitsgabe
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Quote:
Originally Posted by zettahertz View Post
yeah, corrupt RAM modules. That's one of the causes of the 3 beeps, but it seems like most other people get it right when they boot it up.

How often is this happening to you?
Well, once every day before I got my logic board replaced. But after it got replaced just one time in total, and this was a week ago that I got it fixed.
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Old Jul 8, 2011, 07:10 PM   #8
lookitsgabe
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It just froze again, so twice since I've gotten it back from the depot.
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Old Jul 9, 2011, 05:55 AM   #9
nomanstool
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@TS

you are not alone, I'm having the same problem, I had my memory replaced to 8gig, and I started having the problem, it occurs frequently when watching video streaming. Not sure if it helps.

Also I'm not on SSD, so i doubt its an SSD problem. I am hesitant of logic board replacement, but having reading this thread I'm positive, its the RAM.

Other related threads

https://discussions.apple.com/thread...rt=30&tstart=0

http://forums.macrumors.com/showthread.php?t=1159926
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Old Jul 9, 2011, 05:56 AM   #10
nomanstool
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would you happen to have boom app installed by
globaldelight.com
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Old Jul 9, 2011, 12:49 PM   #11
zettahertz
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@ nomanstool

yeah, seems like it's your new RAM. try taking out the new RAM modules and see if it's still happening.
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Old Jul 10, 2011, 09:56 AM   #12
nomanstool
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yes I suspect the ram as well, as of the moment I don't have spare ram, so I'll update this thread once I get a replacement. I do hope its just RAM only and not the logic board.

It hasn't occurred in 3 days straight… freeze is totally random.
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Old Jul 10, 2011, 11:00 PM   #13
lookitsgabe
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Quote:
Originally Posted by nomanstool View Post
would you happen to have boom app installed by
globaldelight.com
I don't have that app installed.

I noticed a trend in the freezing/beeping freezing.

Whenever I play a game that requires a lot of graphics rendering or when I stream live broadcasting video and I then lift my macbook, it freezes.

is this normal for a macbook? or should it be able to take me lifting it after going through some intense work?
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Old Jul 23, 2011, 11:50 PM   #14
nomanstool
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I think it has to something to do with Graphics as well. since MBP's have dual graphics, maybe the integrated mode uses the ram, and transfers it to discrete ram.

I tried using both ram in a single slot and the freezing disappeared, I used it in both ram slots. But for the life of me, when I use them both in the same slots, I'm getting those random freezes.

Funny, I wasn't experiencing this when I had the 2x4gb, that came with my mac.

I do think its Logic Board issue now, since both ram passed through Memtest when I checked.

Last edited by nomanstool; Jul 24, 2011 at 12:16 AM.
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Old Feb 3, 2013, 09:38 AM   #15
pyraxiate
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I also was having an issue with the 3 beeps and freezing. I tested ram in my other i7 laptop and it was fine. My hard drive did shows errors when I ran verify on it. I then decided to install my SSD ( 256gb Kingston Hyper X ) and it also froze on me. I was originally worried that my logic board was going bad but then I thought about something. My laptop was only having issues when I moved / carried it. I disabled the sudden motion sensor and all has been well since. I hope this helps some of you out!
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Old Feb 3, 2013, 10:18 AM   #16
Apple Techs
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I have a customer who should be bringing in a MacBook tomorrow with the same exact issue 2011 MacBook Pro sounds like ram but could be gpu hard to tell without a system in my hand.

Something interesting this person said it happened more when the moved the MacBook around opposed to it just sitting on the table....maybe bad or poor solder points at the ram slots? Not sure yet but I will update when I resolve the issue
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Old Apr 26, 2013, 08:54 PM   #17
presidentroots
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Unhappy Macbook freeze, beeping,ticking left side

Like your customer Apple Techs my 2010 Macbook pro 17inch 2.66 i7 has random freezing. When using the computer on my lap it has frozen the pointer and computer or sometimes the screen goes black. Also on freezing there has been 3 beeps from one side of computer more recently a clicking tick, tick tick sound from left hand side . Took computer to repairer who used the computer for 3 days in a row on a desktop with no problems. Playing games lots of videos. He could find nothing wrong.

Can you/anyone suggest what the issue may be.Logic board ?Ram? GPU ?

Last edited by presidentroots; Apr 26, 2013 at 09:10 PM.
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