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Hey! Bought some open box RAM from microcenter today and ran the memtest to see if it was busted or not. I got a couple errors on the second pass of the test, are these false positives or something I dont have to worry about or is the RAM genuinely malfunctioning at times? 
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They look like real RAM errors from that screen shot. -
What do those errors mean? No idea what I'm looking at.Comment
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The data read from the RAM isn't the same as the data written to the RAM.
(actual value is different from expected value).
This is bad as RAM only has 1 job (to store data) and it isn't doing that job very well. How it effect real world usage is random. You might never notice or it might crash the machine regularly, or corrupt files.
The values are in hexadecimal as it makes is easier to know what bits (within the bytes) failed. In this case you are getting a single bit failure, which is typical of a RAM failure.
See also
https://www.memtest86.com/troubleshooting.htmComment
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