SuperServer 5019S-L User's Manual
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Chapter 3: Maintenance and Component Installation
Memory Installation
Memory Support
The X11SSL-F supports up to 64GB of ECC DDR4-2133/1866/1600/1333 unbuffered (UDIMM)
memory in four memory slots. Populating these DIMM slots with memory modules of the same
type and size will result in interleaved memory, which will improve memory performance.
Check the Supermicro website for possible updates to memory support.
Installing Memory
Begin by removing power from the system as described in Section 3.1.
1. Starting with DIMMB2 (blue slot), push the release tabs outwards on both ends of the
DIMM slot to unlock it.
2. Align the key of the DIMM with the receptive point on the memory slot and the notches
on both ends of the module with the receptive points on the slot.
3. With your thumbs on both ends of the module, press it straight down into the slot until
the module snaps into place.
4. Press the release tabs to the locked positions to secure the DIMM module into the slot.
Repeat for other DIMM slots as needed. See next page for population sequence.
5. To remove a DIMM, unlock the release tabs then pull the DIMM from the memory slot.
Caution:
Exercise extreme caution when installing or removing memory modules to prevent
any possible damage to the DIMMs or slots.
Figure 3-8. Installing DIMMs
Release Tabs
Notches
Press both notches
straight down into
the memory slot.
Note:
Visit the product page on the Supermicro website for possible updates to memory
DIMM Module Population Sequence
When installing memory modules, the DIMM slots should be populated in the following order:
DIMMB2, DIMMA2, DIMMB1, DIMMA1.
•
Always use DDR4 DIMM modules of the same type, size and speed.
•
Mixed DIMM speeds can be installed. However, all DIMMs will run at the speed of the
slowest DIMM.
•
The motherboard will support odd-numbered modules (1 or 3 modules installed). However,
for best memory performance, install DIMM modules in pairs to activate memory interleav-
ing.
Figure 3-9. Populating DIMMs
DIMMB2
(Blue Slot)
DIMMA2
(Blue Slot)
Towards the edge of the motherboard
Towards the CPU
DIMMA1
DIMMB1
Memory Module Population
DIMM Slots
per Channel DIMM Type
POR
Speeds
Ranks per
DIMM
Layer
Count
FW Base
Supported
Voltage
2
Unbuffered
DDR4 ECC
2133,1866,
1600, 1333
SR, DR
6
SPS
1.2V
Memory Module Population
Max Memory
Possible
4GB DRAM
Technology
8GB DRAM
Technology
Single Rank
UDIMM
16GB
(4x 4GB DIMMs)
32GB
(4x 8GB DIMMs)
Dual Rank
UDIMMs
32GB
(4x 8GB DIMMs)
64GB
(4x 16GB DIMMs)
