ContaCt InformatIon
• www.supermicro.com (Email: support@supermicro.com)
• Manuals: http://www.supermicro.com/support/manuals
• Drivers & Utilities: https://www.supermicro.com/wdl/driver/
• Safety: http://www.supermicro.com/about/policies/safety_information.cfm
LED Indicators
LED Description Color/State
LE3, LE4, LE5, LE6 M.2 LEDs for M.2-C04/M.2-C03/M.2-C02/M.2-C01 Blinking Green: Device Working
LEDBMC BMC Heartbeat LED Blinking Green: BMC Normal
LEDPWR Onboard Power LED Solid Green: Power On
UID-LED Unit Identier (UID) LED Blue On: Unit Identied
LED Indicators
Towards the CPU
(Gray Slot) DIMMC1
(Black Slot) DIMMC2
(Gray Slot) DIMMD1
(Black Slot) DIMMD2
(Gray Slot) DIMMA1
(Black Slot) DIMMA2
(Gray Slot) DIMMB1
(Black Slot) DIMMB2
DIMMG1
DIMMG2
DIMMH1
DIMMH2
DIMME1
DIMME2
DIMMF1
DIMMF2
CPU & Memory Support
Memory Population Table (w/16 Slots)
When one CPU is used: Memory Population Sequence
1 CPU & 1 DIMM CPU1: P1-DIMMA1
1 CPU & 2 DIMMs CPU1: P1-DIMMA1/P1-DIMME1
1 CPU & 3 DIMMs* CPU1: P1-DIMMA1/P1-DIMME1/P1-DIMMC1
1 CPU & 4 DIMMs CPU1: P1-DIMMA1/P1-DIMME1/P1-DIMMC1/P1-DIMMG1
1 CPU & 5 DIMMs* CPU1: P1-DIMMA1/P1-DIMMB1/P1-DIMME1/P1-DIMMC1/P1-DIMMG1
1 CPU & 6 DIMM CPU1: P1-DIMMA1/P1-DIMMB1/P1-DIMME1/P1-DIMMF1/P1-DIMMC1/P1-DIMMG1
1 CPU & 7 DIMMs* CPU1: P1-DIMMA1/P1-DIMMB1/P1-DIMMD1/P1-DIMME1/P1-DIMMF1/P1-DIMMC1/P1-DIMMG1
1 CPU & 8 DIMMs CPU1: P1-DIMMA1/P1-DIMMB1/P1-DIMMD1/P1-DIMME1/P1-DIMMF1/P1-DIMMC1/P1-DIMMG1/P1-DIMMH1
1 CPU & 9 DIMMs* CPU1: P1-DIMMA1/P1-DIMMA2/P1-DIMMB1/P1-DIMMC1/P1-DIMMD1/P1-DIMME1/P1-DIMMF1/P1-DIMMG1/P1-DIMMH1
1 CPU & 10 DIMMs
CPU1: P1-DIMMA1/P1-DIMMA2/P1-DIMMB1/P1-DIMMC1/P1-DIMMD1/P1-DIMME1/P1-DIMME2/P1-DIMMF1/P1-DIMMG1/
P1-DIMMH1
1 CPU & 11 DIMMs*
CPU1: P1-DIMMA1/P1-DIMMA2/P1-DIMMB1/P1-DIMMC1/P1-DIMMC2/P1-DIMMD1/P1-DIMME1/P1-DIMME2/P1-DIMMF1/
P1-DIMMG1/P1-DIMMH1
1 CPU & 12 DIMMs
CPU1: P1-DIMMA1/P1-DIMMA2/P1-DIMMB1/P1-DIMMC1/P1-DIMMC2/P1-DIMMD1/P1-DIMME1/P1-DIMME2/P1-DIMMF1/
P1-DIMMG1/P1-DIMMG2/P1-DIMMH1
1 CPU & 13 DIMMs*
CPU1: P1-DIMMA1/P1-DIMMA2/P1-DIMMB1/P1-DIMMB2/P1-DIMMC1/P1-DIMMC2/P1-DIMMD1/P1-DIMME1/P1-DIMME2/
P1-DIMMF1/P1-DIMMF2/P1-DIMMG1/P1-DIMMH1
1 CPU & 14 DIMM CPU1: P1-DIMMA1/P1-DIMMA2/P1-DIMMB1/P1-DIMMB2/P1-DIMMC1/P1-DIMMC2/P1-DIMMD1/P1-DIMME1/P1-DIMME2/
P1-DIMMF1/P1-DIMMF2/P1-DIMMG1/P1-DIMMG2/P1-DIMMH1
1 CPU & 15 DIMMs*
CPU1: P1-DIMMA1/P1-DIMMA2/P1-DIMMB1/P1-DIMMB2/P1-DIMMC1/P1-DIMMC2/P1-DIMMD1/P1-DIMMD2/P1-DIMME1/
P1-DIMME2/P1-DIMMF1/P1-DIMMF2/P1-DIMMG1/P1-DIMMG2/P1-DIMMH1
1 CPU & 16 DIMMs
CPU1: P1-DIMMA1/P1-DIMMA2/P1-DIMMB1/P1-DIMMB2/P1-DIMMC1/P1-DIMMC2/P1-DIMMD1/P1-DIMMD2/P1-DIMME1/
P1-DIMME2/P1-DIMMF1/P1-DIMMF2/P1-DIMMG1/P1-DIMMG2/P1-DIMMH1/P1-DIMMH2
Note: *Unbalanced conguration (not recommended due to decreased performance)
The X12SPA-TF motherboard supports a single 3rd Generation Intel® Xeon® Scalable-SP processor. Memory supports up to 1TB of ECC
RDIMM, 4TB of 3DS RDIMM, 2TB of LRDIMM, and 4TB of 3DS LRDIMM with speeds of up to 3200 MHz (2DPC) in 16 DDR4 (288-pin) SMD
DIMM slots. Populating these DIMM slots with a pair of memory modules of the same type and size will result in interleaved memory, which
will improve memory performance. 1DPC and 2DPC are recommended for memory installation. Only selected 3rd Gen. Intel Xeon Scalable-
SP processors support Intel Optane Persistent Memory (PMem) 200 Series.
Notes: 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.
DIMM Memory Installation
Memory Population Guidelines
• 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.
• In a given channel, the black slot can be enabled only when the gray slot is populated rst.