How to identify a faulty RAM Module?

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
0nepieceAsked:
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sosinc3Connect With a Mentor Commented:
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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nobusConnect With a Mentor Commented:
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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awawadaCommented:
Yes memtest86+ is the best!
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NikConnect With a Mentor Systems SpecialistCommented:
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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davidlevans13Connect With a Mentor Commented:
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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jschristian44Commented:
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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nobusCommented:
any feedback, Onepiece?
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0nepieceAuthor Commented:
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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nobusCommented:
good to hear you found it !
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