Ram

[LandyVlad]

So 5a and 5b do show memory amounts of less than 5GB ? As in, they report accurately?

It does sound like it could be a BIOS issue. I suppose the thing to check would be how much it is actually UILISING as opposed to how much it is reporting.

Maybe try these free RAM stress tests

heavyload  https://www.jam-software.com/heavyload/

memtest86+  http://www.memtest.org/

memtest 64 https://www.techpowerup.com/download/techpowerup-memtest64/

[Bigguy]

I forgot about memtest. Yes I might try that later tonight, thanks.