HP ENVY Phoenix Desktop - 810-370st CTO - Memory Module Failure

[paranoid]

When I run Memory tests on the my computer, I get a Memory Module Failure with the following FAILURE ID:

90DM6F-000A65-RXNJLJ-404803

I have replaced both memory DIMMS and neither of these were the failure.  What's the next step, replacing the motherboard, as the processor says it checks out?

The computer is well out of warranty so if that is the next step, I will most likely just replace the whole unit.

Thanks for any help.

[KingOP]

Make sure that both DIMMS are facing the same way, If one is backwards then you could get the failure code.

I did that once until a friend told me to make sure they are both facing the same way. I knew that the one closest to the processor was right and when I turned the other one around I got rid of the failure code. Worth a shot.

I have gotten bad DIMMS before brand new.

[paranoid · Accepted solution]

Silly me, there are 4 DIMMS on this motherboard.  There are just not in the same location and 2 are hidden by the fan assembly.  Replacing those 2 did the trick.