I have been charged with taking over a group of servers and am working with a Dell PowerEdge R720 with an Intel Xeon CPU E5-2650 0 2.00GHz and trying to upgrade its memory. I have purchased Samsung 32GB 4Rx4 PC3L 12800R memory modules. When I place them into the device I get an error code of PST0129, "Memory is detected, but is not configurable". The thing that confuses me is that there are other R720s in this group that are successfully using the same memory. Is there a setting in the BIOS that I need to configure? Any help would be greatly appreciated. Thanks!
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