It's RAM or motherboard?

[il2pilot]

Hello!
My system:
Intel i7-4770
Asus H87-PLUS latest BIOS from 2015(
CRUCIAL Ballistix Sport BLS2CP8G3D1609DS1S00CEU DDR3 2x8Gb 1600

Recently I bought used RAM 2x8Gb exactly same model, only SN and manufacture date differ.

With all sticks installed (32 Gb) I get errors in tests 4,5 at 006315dd1c0, 006315dd140 25365.8 Gb MemTest86 V4.3.7. Other ramtest utilities (running from windows) throws errors with 4 sticks of RAM too. (XMP or auto mode - no difference, lower memory frequency, raising voltage from 1.5 to 1.6v, swapping stick - same error too). But with MemTest86 v8.3 - no errors, strange.
With 3, 2 or 1 stick in different combinations - all ok.
System works practically stable - one bios screen freeze after restart.

Do I have to leave three sticks of RAM? It can be something else to do?
Thank you.

[David (PassMark)]

Yes, that is a bit strange.
If you are not going to return the bad stick as faulty we'll buy it off you and see if we can get V8 to detect a fault.

[il2pilot]

Thank for answer.
Very similar case, interesting:
https://www.passmark.com/forum/memte...b-ram-4-sticks
I bought memory here - https://aliexpress.com/item/32868095372.html Looks like same as my memory, only a sticker is little yellow.
I can sell and send by mail one or two new stick to you for testing or made additional tests on my pc.

[David (PassMark)]

I'll Email you directly.