Led Indicators; Memory Population Guidelines - Supermicro X11SRA Quick Reference Manual

C I
ontaCt nformatIon
• 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

LED Indicators

LED
LE1 M.2 Satus LED
LE2 M.2 Satus LED
LEDBMC BMC Heartbeat
LEDPWR Power LED
CPU & Memory Support CPU & Memory Support
The X11SRA/-F/-RF supports Intel
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.
Towards the CPU
DIMMA2 (Black Slot)
DIMMA1 (Gray Slot)
DIMMB2 (Black Slot)
DIMMB1 (Gray Slot)

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.
DIMMA1 DIMMB1 DIMMC1
4GB 4GB
4GB 4GB
4GB 4GB
8GB 8GB
32GB 32GB 32GB
32GB 32GB 32GB
64GB 64GB 64GB
64GB 64GB 64GB
LED Indicators
Description
Xeon W-21xx series processors in a single socket (LGA 2066), up to 256GB
® ®
DIMM Memory Installation
Recommended Population (Balanced)
DIMMD1 DIMMA2
4GB 4GB
4GB 4GB 4GB
8GB 8GB 8GB
32GB
32GB 32GB
64GB
64GB 64GB
Blinking Green: Read/Write
Blinking Green: Read/Write
Blinking Green: BMC Normal
Solid Green: Power On
DIMMC2 (Black Slot)
DIMMC1 (Gray Slot)
DIMMD2 (Black Slot)
DIMMD1 (Gray Slot)
DIMMB2 DIMMC2 DIMMD2
4GB 4GB 4GB
8GB 8GB 8GB
32GB 32GB 32GB
64GB 64GB
64GB 64GB 64GB
Status
Towards the CPU
Total System Memory
8GB
16GB
32GB
64GB
128GB
256GB
384GB
512GB