Hi, Welcome to BC @erruer
Please note that in this forum everyone has individual topics due to differing systems,
Please start your own Topic to receive help. Thanks.
@JJBolas Is think I said, pull all ram but one stick and test with Memtest86 for max allowed 4 passes then do another 4 passes. Then repeat on another stick.
If 1 fails it is failed
As well suggest lookup all the part #'s as 1 may not be compatible.