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Bleeping after RAM install, but Mac starts and I'm writing here?

417 Views 15 Replies Latest reply: Nov 13, 2012 6:17 PM by Anon M RSS
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Anon M Calculating status...
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Nov 13, 2012 7:46 AM

I know that the bleeping means there is an issue. I recently just bought 32 GB of RAM and now filled all 4 slots.

 

However my computer still started and I'm writing here now, the "About this Mac" menu also says "32 GB" for the memory.

 

The Mac had kind of "restarted" somehow without the bleeping. Not really restarted, but it opened a new loading window (all white with the mac logo I think) and then it showed me the login screen.

 

I first had some problems installing it. I watched exactly in which direction and on which side the current RAM came out, to put the new RAM in the correct way as well. But when I tried this, it failed, and I just found a picture here which shows why:

 

http://www.wired.com/images_blogs/photos/uncategorized/2009/02/20/mac_ram16.jpg

 

You see that little slot on the top of both of them, but on the blue one it's on the left and on the green one it's more on the right?

 

Well that was exactly my problem, the RAM I bought (they guaranteed me it would work with my iMac) has this little slot on the other side.

 

I first tried pushing it and I saw in many tutorial videos that people were saying "Don't be afraid to push too hard, it needs to click" but I found this very strange, so I stopped and compared it to my old RAM until I noticed this little slot.

 

So I just turned it around and that's how I installed it.

 

 

I'm wondering, is this the problem? Because I put it in the "wrong" way? The thing is, I can't put it inside another way... only like this...

 

BTW, I don't think I've damaged it.

iMac, OS X Mountain Lion (10.8.2)
  • Paul_31 Level 6 Level 6 (12,190 points)

    Where did you get the RAM? There have been quite a few threads on here where users have had problems with certain makes of RAM, although most of the issues seem to be related to using 16gb.

    The two places that get recommended consistently as providing reliable RAM that works - and with a lifetime guarantee - are macsales.com and crucial.com

     

    Here's a long thread on the subject: https://discussions.apple.com/thread/2473276

  • babowa Level 7 Level 7 (22,075 points)

    Also, if you have a total of four slots for your RAM, you need to match the RAM sticks horizontally, similar to this (screenshot of mine):

     

    Screen Shot 2012-11-13 at 8.32.24 AM.png

    And, as mentioned, quality does matter, i.e. Kingston Value Brand does not have a good track record here, but OWC (macsales.com) and Crucial do.

  • babowa Level 7 Level 7 (22,075 points)

    Well, you said you filled all 4 slots, so presumably you put in 4 x 8 GB? Then you should be fine as far as matching. Not sure why you can't see the image I added to my post - it's not my screen, it's a pic (screenshot) of the system showing my memory slots and how they are populated.

  • Paul_31 Level 6 Level 6 (12,190 points)

    Are you sure you put it in the wrong way round to start with. There's a notch in one edge of the board to help avoid that .

    You could drop down to 16gb to see if that helps resolve the problems, maybe testing the modules in separate pairs to try to eliminate any duff ones.

    I see you got them from Crucial - did you note what make they are?

  • Paul_31 Level 6 Level 6 (12,190 points)

    The 'notch' is a gap in the metallic edge. The shorter metallic section is on the right as you push the RAM in with the Mac face down. I've got a late 2009 27" and it's clearly shown on page 40 of the Everything Mac booklet that came with the computer.

    It can take some shoving to get it to seat properly.

  • Paul_31 Level 6 Level 6 (12,190 points)

    If the Mac is now performing well you might have got away with it.

    You could launch Activity Monitor in Utilities, click on the System Memory tab and try to do some work that'll really need a lot of RAM - should be able to see how much is being accessed/used.

  • Paul_31 Level 6 Level 6 (12,190 points)

    Sounds normal to me. I've got 12gb of RAM and have Mail, Chrome & Skype running, and this is my usage:

     

    Screen Shot 2012-11-13 at 21.23.01.jpg

    Maybe just use the Mac and see if it runs as you would hope. It's only going to access the 32gb of RAM when it needs to - perhaps when processing large video files whilst doing lots of other things as well.

    Keep Activity Monitor open and launch numerous applications and just watch to see if you start to max out the RAM. If you see RAM usage anything in the 24-30+gb that should show it's all being utilised and so long as nothing goes pop I think you're OK.

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