Advice reg. Crucial RAM

[dvcat]

Hello all,
I recently got an 8GB RAM upgrade from crucial.com for my Mid 2009 Macbook Pro. I popped the RAM chips in my laptop a while back and got a memtest86 bootable CD and started scanning the system. After a while, I started getting errors. I then removed the RAM and put it in back again. I am now running memtest again and 1 iteration is over without any errors. I am kind of confused. Did I mess up the first time in installing it or is the second memtest test just missing the errors? Some advice would be helpful.

Thanks

 

[bryan85]

Crucial is normally high quality RAM. I would physically inspect the RAM for defects, then try installing the it once more. Make sure it is full seated, and run the test again. You should not receive any errors. If you do get errors, RMA the RAM.

 

[Apple 26.2]

It's possible you didn't seat the RAM correctly the first time.

 

[likegadgets]

Try re-seating the chips. If the problem continues call Crucial. They have great support and if necessary they will replace your chips

 

[dvcat]

So I ran the memtest again for 7 hours and it started showing errors after a while...Aargh

 

[dvcat]

BTW, has any one heard of false positives on memtest? I selected the Bootable Linux CD available at Memtest86.com and burned it as a bootable dvd from my Mac and then started using it. I ask because I just removed the crucial chips and reseated my old RAM in and I am hitting into errors on it. Now, I have never scanned the old RAM before using memtest but I am pretty sure I seated it properly: I have checked two videos, the ifixit instructions and the instruction on the Apple site.

 

[fehhkk]

Remove your old RAM, and just put the 4GB of Crucial sticks in the slots, and re-run ... If you get no errors, then you can be sure that your original memory has problems.

 

[dvcat]

I am kind of confused: I think the Crucial RAM already had errors. So I am not sure how the absence or presence of errors using the Crucial RAM will tell me much about my old RAM.