User's Manual (1.0)

5-8
SUPERSERVER 2028GR-TR/TRT/TRH/TRHT User's Manual
Memory Support
The serverboard supports up to 1TB of 288-pin Registered (RDIMM)/Load Reduced
(LRDIMM) DDR4 ECC 2133/1866/1600 MHz in 16 slots. Memory speed support
is dependent on the CPUs. For best memory performance, please install memory
modules of the same type and same speed. For the latest CPU/memory updates,
refer to the Supermicro website.
Processor/DIMM Population Congurations
For memory to work properly, follow the tables below for memory installation.
•Install DIMMs in pairs, that is, use an even number of DIMMs.
•All channels in a system will run at the fastest common frequency.
5-5 Installing Memory
Caution: Exercise care installing or removing DIMM modules to avoid damage.
Installing Memory Modules
Insert the desired number of DIMMs into the memory slots, starting with P1-DIMM 1A
1. Push the release tabs outwards on both ends of the DIMM slot to unlock it.
2. Align the key on the DIMM module with the receptive point on the slot.
3. Use two thumbs together to press on both ends of the module straight down
into the slot until the module snaps into place.
4. Press the release tabs to the lock positions to secure the DIMM module into
the slot. See Figure 5-2.
Figure 5-2. Installing DIMM into Slot
Socket Key
Release Tab
Release Tab