Is Memtest86 affected by Cas timings?

RyanTH98

Honorable
Mar 26, 2013
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So I was having BSODs and I did memtest86 by testing each stick of RAM individually in both slots. It was 16GB DDR4 2400 (2x8GB). One of the sticks came up with errors in both slots while the other stick had no errors in both slots.

Therefore, I started running with just the one stick, however, I noticed that a lot of my applications crashed and hanged, but it didn't crash the entire OS and give me a BSOD. So I went into the BIOS and found out that the CAS latency timings were wrong. I fixed them to the right ones and everything worked perfectly.

I requested an RMA, but I was wondering if I should re-test the RAM and if the wrong Cas timings messed with the tests, even though one stick got no errors.
 

Zerk2012

Titan
Ambassador
I would retest both with the right timings. If you run memory with a lower cas then it's rated for at that speed it could also need more voltage to be stable.
It is possible one stick could still run with the wrong cas and the other could not.