Strange ddr4 behavior

[rocker0]

Hi

I have some corsair vengeance lpx 2400 ddr4 CMK8GX4M2A2400C16 ver 5.20 ram

its a 2 stick set but one of them is acting unstable but in a weird way. I run men test 86 and the windows memory test for stability and there are no issues, but when I ran aida 64 it flashed up hardware error, I have narrowed it down to this one stick. I got it second hand so cant return on warranty but i was wondering what could the issue be? If i could get this to run stable but had to overclock or something that would be amazing

Also why would it only show this issue on aida 64 not the other tests?

thanks

[dokugolf]

What does your BIOS say? Are you running at your rated speeds, do you have XMP enabled?

[rocker0]

I have run it at the base 2133 and with xmp enabled neither helped

what do you mean my what does my bios say, it is detected fine if that is what you mean?