ContaCt InformatIon
• www.supermicro.com (Email: support@supermicro.com)
• Manuals: http://www.supermicro.com/support/manuals
• Drivers & Utilities: https://www.supermicro.com/wftp/driver/
• Safety: http://www.supermicro.com/about/policies/safety_information.cfm
The X11SRA/-F/-RF supports Intel
®
Xeon
®
W-21xx series processors in a single socket (LGA 2066), up to 256GB
of Registered DIMM (RDIMM) or 512GB of Load Reduced DIMM (LRDIMM) ECC/Non-ECC DDR4 memory, and
with speeds of up to 2666 MHz in eight 288-pin memory slots. Populating these DIMM slots with a pair of memory
modules of the same type and same size will result in interleaved memory, which will improve memory performance.
Note: 1) For memory optimization, use only DIMM modules that have been validated by Supermicro. For the latest memory updates, please
refer to our website at http://www.supermicro.com/products/motherboard.
2) Always connect the power cord last, and always remove it before adding, removing or changing any hardware components.
LED Indicators
CPU & Memory Support
CPU & Memory Support
Memory Population Guidelines
When installing memory modules, the DIMM slots should be populated in the following order: DIMMA1, DIMMB1,
DIMMC1, DIMMD1, then DIMMA2, DIMMB2, DIMMC2, DIMMD2.
• Always use DDR4 DIMM modules of the same size, type and speed.
• Mixed DIMM speeds can be installed. However, all DIMMs will run at the speed of the slowest DIMM.
Recommended Population (Balanced)
DIMMA1 DIMMB1 DIMMC1 DIMMD1 DIMMA2 DIMMB2 DIMMC2 DIMMD2 Total System Memory
4GB 4GB 8GB
4GB 4GB 4GB 4GB 16GB
4GB 4GB 4GB 4GB 4GB 4GB 4GB 4GB 32GB
8GB 8GB 8GB 8GB 8GB 8GB 8GB 8GB 64GB
32GB 32GB 32GB 32GB 128GB
32GB 32GB 32GB 32GB 32GB 32GB 32GB 32GB 256GB
64GB 64GB 64GB 64GB 64GB 64GB 384GB
64GB 64GB 64GB 64GB 64GB 64GB 64GB 64GB 512GB
DIMM Memory Installation
Towards the CPU
Towards the CPU
DIMMB1 (Gray Slot)
DIMMA1 (Gray Slot)
DIMMA2 (Black Slot)
DIMMB2 (Black Slot)
DIMMD1 (Gray Slot)
DIMMC1 (Gray Slot)
DIMMC2 (Black Slot)
DIMMD2 (Black Slot)
LED Description Status
LE1 M.2 Satus LED Blinking Green: Read/Write
LE2 M.2 Satus LED Blinking Green: Read/Write
LEDBMC BMC Heartbeat Blinking Green: BMC Normal
LEDPWR Power LED Solid Green: Power On
LED Indicators
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