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How to identify a faulty RAM Module?

Posted on 2010-08-13
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Last Modified: 2013-11-10
Hi,

  How do I know from just looking at it if a RAM module (e.g. DDR2, DDR1) if its faulty / defective? Also are there good (free preferably) applications to test RAM performance? TIA
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Question by:0nepiece
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by:nobus
nobus earned 150 total points
ID: 33427276
you can't tell by looking at it. you have to test it.
best diag is memtest86+ :  www.memtest.org
or find it on the ubcd with all pc diags : http://www.ultimatebootcd.com/      
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by:awawada
ID: 33427278
Yes memtest86+ is the best!
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by:Nik
Nik earned 100 total points
ID: 33427367
Yes, memtest should help, but you can also consider other good applications..
http://pcsupport.about.com/od/toolsofthetrade/tp/memorytest.htm
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sosinc3 earned 200 total points
ID: 33428178
A simple approach is to remove the sticks and put them in one by one to see if the error comes back. If it comes back with one of the sticks but not others you know which one is faulty. You can of course also run tests using the memory testers that were mentioned and/or most comptuer Bios' screens have a memory testere of their own that you can invoke by going into setup during computer POST. If you suspect faulty RAM, at the current prices it is almost not worth spending too much time on it. Just replace it and see what happens.
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by:davidlevans13
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ID: 33435860
Another thing to keep in mind. I just installed 2x1 GB sticks in my PC and after a few blue screens did the one stick at a time test...  long story short...  It turned out that the number 1 slot on my board was the problem. Always had troubles with any stick in that slot, but in another slot they all worked fine.
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by:jschristian44
ID: 33467488
are you sure one is faulty?  did you check their settings in bios?  if one is faulty, i would just replace all of them in that segment.  send it back for a replacement.  newegg and tigerdirect are pretty good on that, but if you got it with your computer, they can be hard sometimes and make you pay for return shipping and stuff.  but as cheap as ram is nowadays i would just go ahead and get some more ram.  i would recommend a-data as my personal favorite, i am running g skill ddr3 in my computer now and it is fantastic.  i would stick with those 2 name brands though.
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by:nobus
ID: 33472229
any feedback, Onepiece?
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Author Closing Comment

by:0nepiece
ID: 33528317
Thanks for everyone's inputs! I do apologize for the late reply. Did a lot of other deliverables first. Anyways I tested the RAM one by one and was able to find the faulty RAM. Thanks again everyone!
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by:nobus
ID: 33528641
good to hear you found it !
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