Only one RAM working?

Justino6969

macrumors newbie
Original poster
May 22, 2012
3
0
Hi all, new here. I've searched before and can't quite find the answer. I have an early 2011 macbook pro 2.3Ghz i5 with 4Gb (2 x 2Gb) DDR3 RAM. I just purchased 2 4Gb sticks of PNY RAM and am having some issues. When I put both new memory sticks in and boot up my mac I get a black screen background covered in code from a kernel panic and a pop up message telling me to restart. I tried switching the which stick goes into which port but that doesn't seem to work. However, if I put in one new stick of 4Gb RAM and one 2Gb stick that came in it stock, it boots up fine and recognizes that it has 6Gb of RAM. I've tried PRAM resets but nothing seems to work. Any ideas?
 

pmkoch

macrumors regular
Oct 18, 2009
160
4
Hi all, new here. I've searched before and can't quite find the answer. I have an early 2011 macbook pro 2.3Ghz i5 with 4Gb (2 x 2Gb) DDR3 RAM. I just purchased 2 4Gb sticks of PNY RAM and am having some issues. When I put both new memory sticks in and boot up my mac I get a black screen background covered in code from a kernel panic and a pop up message telling me to restart. I tried switching the which stick goes into which port but that doesn't seem to work. However, if I put in one new stick of 4Gb RAM and one 2Gb stick that came in it stock, it boots up fine and recognizes that it has 6Gb of RAM. I've tried PRAM resets but nothing seems to work. Any ideas?
Sounds like 1 stick is bad. Pretty common for memory sticks to go bad. Try 1 at a time and see which is bad.
 
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Justino6969

macrumors newbie
Original poster
May 22, 2012
3
0
I appreciate the reply but I gave in and just exchanged them at Best Buy for new ones and they seem to be working fine and it recognizes all 8Gb. I still don't know what the problem was, but thanks anyway!
 
Comment

pmkoch

macrumors regular
Oct 18, 2009
160
4
I appreciate the reply but I gave in and just exchanged them at Best Buy for new ones and they seem to be working fine and it recognizes all 8Gb. I still don't know what the problem was, but thanks anyway!
No problem, glad you got it worked out!
 
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