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Windows 7: You may not know if your RAM is bad.

11 Jun 2014   #1
Atom

win7 64 Home Premium
 
 
You may not know if your RAM is bad.

I was recently troubleshoot a problem on 1 of 4 computers, the problem being that it would occasionally just freeze, causing me to have to do a hard restart. Eventually I found that 1 of the 2 sticks of RAM in this computer was bad (failed Memtest86), so I replaced the 2 sticks with new RAM. I have also RMAed the one bad stick which the mfg was initially reluctant to do, which is why I bought new. Anyway, this caused me to wonder if I had any other bad RAM, so I tested the 10 sticks in the other 3 computers, and found 3 bad sticks. The computer with 1 bad stick in 4 did blink off occasionally, but I used it quite a bit. One has 2 bad sticks out of 2 and it very rarely malfunctions, but it is lightly used.

So my question is, would having a 33% failure rate be considered unusual? All of this is three to five years old. One difference between all of these computers and normal ones, is that none of them are in a case. Otherwise, they are just plain vanilla running Windows 7-64

Thanks for any comments.


My System SpecsSystem Spec
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11 Jun 2014   #2
matts6887

Windows 7 ultimate 64-bit
 
 

Well; i wouldnt say its totally unusual; as ram can become bad even if its not right on the onset of the start of using it. I would just keep an eye on it; and if it still does it you may have to look into the slots on the mb as being a possible culprit or the connector(s) from the ram slots to the mb itself
My System SpecsSystem Spec
11 Jun 2014   #3
Atom

win7 64 Home Premium
 
 

Quote   Quote: Originally Posted by matts6887 View Post
Well; i wouldnt say its totally unusual; as ram can become bad even if its not right on the onset of the start of using it. I would just keep an eye on it; and if it still does it you may have to look into the slots on the mb as being a possible culprit or the connector(s) from the ram slots to the mb itself
Well, I have never tested any of it before that I can recall and I have always assumed that new RAM would be good. Today I got back the RAM for one computer which was RMAed and all 4 sticks tested good and are now running.

Is it possible that issues with the mobo or power supply could cause the RAM to fail. Just wondering.
My System SpecsSystem Spec
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11 Jun 2014   #4
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

Things to remember.
1. New ram can be bad.
2. A bad motherboard ram slot can be bad but most likely not.
3. A store bought vanilla computer most likely came with the cheapest ram possible and many times do not match.
4. All ram should be matched.
5. Always use your motherboard manual instruction to install ram.
My System SpecsSystem Spec
13 Jun 2014   #5
dbtmellis

Windows 7 Home Premuim 64 Bit
 
 

could it be a false positive?
My System SpecsSystem Spec
13 Jun 2014   #6
Atom

win7 64 Home Premium
 
 

Quote   Quote: Originally Posted by dbtmellis View Post
could it be a false positive?
Not sure what you're asking, but the computer that got me started down this rabbit hole was freezing regularly before I replaced the memory stick which tested bad. Actually, I replaced both sticks.
My System SpecsSystem Spec
13 Jun 2014   #7
Golden
Microsoft MVP

Windows 7 Ult. x64
 
 

Quote   Quote: Originally Posted by dbtmellis View Post
could it be a false positive?
No - MemTest86+ is infallible. Also run it for a minimum of 8 passes yo thoroughly test RAM, any less is insufficient.
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 You may not know if your RAM is bad.




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