We have a PowerEdge T620 that came with 64GB ram, 8x 8GB 2Rx4 DIMMs
We want to upgrade to 128GB and have ordered 8 Kingston KTD-PE313E/8G DIMMs
The Kingston RAM is 2Rx8. The user manual says you can mix x4 and x8 DIMMs but I have not been able to get it to work getting error PST0129 Memory is detected, but is not configurable. Check memory devices.
The system works with either the new RAM or the old but not both
I have enabled Advanced ECC and have tried various combinations including separating the types between processors but to no avail.
Is it possible to mix 8 2Rx4 with 8 2Rx8 and if so which slots should I use?