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USER’S MANUAL
Revision 1.0a
X12STN-H/-E/-L/-C
X12STN-H/-E/-L/-C-WOHS

The information in this user’s manual has been carefully reviewed and is believed to be accurate. The manufacturer
assumes no responsibility for any inaccuracies that may be contained in this document, and makes no commitment
to update or to keep current the information in this manual, or to notify any person or organization of updates. Note:
For the most up-to-date version of this manual, refer to https://www.supermicro.com.
Super Micro Computer, Inc. ("Supermicro") reserves the right to make changes to the product described in this manual
at any time without notice. This product, including software and documentation, is the property of Supermicro and/or
its licensors, and is supplied only under a license. Any use or reproduction of this product is not allowed, except as
expressly permitted by the terms of said license.
IN NO EVENT WILL Super Micro Computer, Inc. BE LIABLE FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL,
SPECULATIVE OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OR INABILITY TO USE THIS PRODUCT
OR DOCUMENTATION, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. IN PARTICULAR, SUPER
MICRO COMPUTER, INC. SHALL NOT HAVE LIABILITY FOR ANY HARDWARE, SOFTWARE, OR DATA STORED
OR USED WITH THE PRODUCT, INCLUDING THE COSTS OF REPAIRING, REPLACING, INTEGRATING,
INSTALLING OR RECOVERING SUCH HARDWARE, SOFTWARE, OR DATA.
Any disputes arising between manufacturer and customer shall be governed by the laws of Santa Clara County in the
State of California, USA. The State of California, County of Santa Clara shall be the exclusive venue for the resolution
of any such disputes. Supermicro's total liability for all claims will not exceed the price paid for the hardware product.
FCC Statement: This equipment has been tested and found to comply with the limits for a Class A digital device
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the manufacturer’s instruction manual,
may cause harmful interference with radio communications. Operation of this equipment in a residential area is likely
to cause harmful interference, in which case you will be required to correct the interference at your own expense.
California Best Management Practices Regulations for Perchlorate Materials: This Perchlorate warning applies only
to products containing CR (Manganese Dioxide) Lithium coin cells. “Perchlorate Material-special handling may apply.
See ”.
https://www.dtsc.ca.gov/hazardouswaste/perchlorate
WARNING: This product can expose you to chemicals including
lead, known to the State of California to cause cancer and birth
defects or other reproductive harm. For more information, go
to www.P65Warnings.ca.gov.
!
The products sold by Supermicro are not intended for and will not be used in life support systems, medical equipment,
nuclear facilities or systems, aircraft, aircraft devices, aircraft/emergency communication devices or other critical
systems whose failure to perform be reasonably expected to result in signiîšżcant injury or loss of life or catastrophic
property damage. Accordingly, Supermicro disclaims any and all liability, and should buyer use or sell such products
for use in such ultra-hazardous applications, it does so entirely at its own risk. Furthermore, buyer agrees to fully
indemnify, defend and hold Supermicro harmless for and against any and all claims, demands, actions, litigation, and
proceedings of any kind arising out of or related to such ultra-hazardous use or sale.
Manual Revision 1.0a
Release Date: April 11, 2022
Unless you request and receive written permission from Super Micro Computer, Inc., you may not copy any part of this
document. Information in this document is subject to change without notice. Other products and companies referred
to herein are trademarks or registered trademarks of their respective companies or mark holders.
Copyright © 2022 by Super Micro Computer, Inc.
All rights reserved.
Printed in the United States of America

3
Preface
Preface
About This Manual
This manual is written for system integrators, IT technicians and knowledgeable end users.
It provides information for the installation and use of the X12STN series motherboards.
About This Motherboard
The X12STN motherboard is a 3.5” Single Board Computer size 4.01" x 5.75" (102mm x
146mm) powered by the 11th generation of Intel® Core™ U series processor, which operates
on low power and features a TDP of 15~28W to provide high performance computing and
multimedia capabilities.
X12STN adopts the latest 64-bit, quad/dual-core processors built on 10nm process technology
for improvements in CPU processing, graphics, security and I/O exibility.
In addition, X12STN is equipped with the latest generation graphics core (Intel Iris® Xᵉ /
UHD for 11th Gen processor Graphics) with DirectX 12, OpenGL 4.5, OpenCL 2.2, and 4K
encoding/decoding, which increases the possibility for multimedia application development.
X12STN with Intel Core i7 and Core i5 supports Intel vPro™ Technology to support Intel
Active Management Technology (AMT), Intel Virtualization Technology (VT-x/-d) and Trusted
Execution Technology. It enhances business-class performance, hardware-enhanced security
features, modern remote manageability, and PC eet stability.
X12STN supports not only quadruple independent displays, including HDMI 1.4, 2.0, DP1.4a
(from Type-C), and 48-bit LVDS interfaces, but also low power dual channel 3200MHz
DDR4 Non-ECC SODIMM of up to 64GB and TPM 2.0, as well as trendy technology built in
with USB3.1 Gen2 type-C.
X12STN also supports a wide range of 12-24V (10% margin) DC input power supply in order
to meet various embedded requirement. Based on numerous demands from embedded
applications, Supermicro developed an optimized thermal solution for X12STN producing
a fanless design on a high performance platform. It is ideal for embedded networking and
storage systems. It features rich I/O interface inculding two 2.5Gigabit Ethernet, three M.2
M-Key/B-Key/E-Key connections, four COM ports (two RS232/422/485, two RS232), eight
USB ports (4 x USB3.1 Gen2, 4 x USB2.0), and an audio speaker output with 3W ampliîšżer
to help customer develop their embedded application easily.
Note that this motherboard is intended to be installed and serviced by professional technicians
only. For processor/memory updates, refer to https://www.supermicro.com/products/.

4
Warning! Indicates high voltage may be encountered when performing a procedure.
Warning! Indicates important information given to prevent equipment/property damage
or personal injury.
Important: Important information given to ensure proper system installation or to
relay safety precautions.
Note: Additional information given to di󰀨erentiate various models or to ensure proper
system setup.
Preface
Manual Organization
Chapter 1 describes the features, speciîšżcations, and performance of the motherboard, and
provides detailed information on the processor.
Chapter 2 provides hardware installation instructions. Read this chapter carefully when
installing the processor, memory modules, and other hardware components into the system.
Chapter 3 describes troubleshooting procedures for video, memory, and system setup stored
in the CMOS.
Chapter 4 includes an introduction to the BIOS and provides detailed information on running
the CMOS Setup utility.
Appendix A provides BIOS Error Codes information.
Appendix B lists software program installation instructions.
Appendix C lists standardized warning statements in various languages.
Appendix D provides UEFI BIOS Recovery instructions.
Conventions Used in the Manual
Special attention should be given to the following symbols for proper installation and to prevent
damage done to the components or injury to yourself:

5
Contacting Supermicro
Headquarters
Address: Super Micro Computer, Inc.
980 Rock Ave.
San Jose, CA 95131 U.S.A.
Tel: +1 (408) 503-8000
Fax: +1 (408) 503-8008
Email: marketing@supermicro.com (General Information)
support@supermicro.com (Technical Support)
Website: www.supermicro.com
Europe
Address: Super Micro Computer B.V.
Het Sterrenbeeld 28, 5215 ML
's-Hertogenbosch, The Netherlands
Tel: +31 (0) 73-6400390
Fax: +31 (0) 73-6416525
Email: sales@supermicro.nl (General Information)
support@supermicro.nl (Technical Support)
rma@supermicro.nl (Customer Support)
Website: www.supermicro.nl
Asia-Paciîšżc
Address: Super Micro Computer, Inc.
3F, No. 150, Jian 1st Rd.
Zhonghe Dist., New Taipei City 235
Taiwan (R.O.C)
Tel: +886-(2) 8226-3990
Fax: +886-(2) 8226-3992
Email: support@supermicro.com.tw
Website: www.supermicro.com.tw
Super X12STN-H/-E/-L/-C Series Motherboards User's Manual

6
Table of Contents
Chapter 1 Introduction
1.1 Checklist ...............................................................................................................................8
Quick Reference ...............................................................................................................13
Quick Reference Table ......................................................................................................14
Motherboard Features .......................................................................................................15
1.2 Processor Overview ...........................................................................................................18
1.3 Special Features ................................................................................................................18
1.4 ACPI Features ....................................................................................................................18
1.5 Power Supply .....................................................................................................................19
1.6 Super I/O ............................................................................................................................19
Chapter 2 Installation
2.1 Static-Sensitive Devices .....................................................................................................20
Precautions .......................................................................................................................20
Unpacking .........................................................................................................................20
2.2 Motherboard Installation .....................................................................................................21
Tools Needed ....................................................................................................................21
Location of Mounting Holes ..............................................................................................21
Installing the Motherboard.................................................................................................22
2.3 Memory Support and Installation .......................................................................................23
Memory Support ................................................................................................................23
SO-DIMM Installation ........................................................................................................24
SO-DIMM Removal ...........................................................................................................24
2.4 Rear I/O Ports ....................................................................................................................25
2.5 Front Control Panel ............................................................................................................29
2.6 Connectors .........................................................................................................................32
Power Connections ...........................................................................................................32
Headers .............................................................................................................................33
2.7 Jumper Settings .................................................................................................................45
How Jumpers Work ...........................................................................................................45
2.8 LED Indicators ....................................................................................................................49
Chapter 3 Troubleshooting
3.1 Troubleshooting Procedures ..............................................................................................50
Before Power On ..............................................................................................................50
Preface

8
Super X12STN-H/-E/-L/-C Series Motherboards User's Manual
Main Parts List (Retail Single Package)
Description QuantityPart Number
Supermicro Motherboard with passive heatsink X12STN-H/-E/-L/-C 1
Audio cable CBL-OTHR-0986 1
COM cable CBL-CDAT-0665 1
SATA power cable CBL-PWEX-1030 1
USB cable CBL-CUSB-0983 1
SATA cable CBL-SAST-0881 1
DC IN power cable CBL-PWEX-1029 1
Quick Reference Guide MNL-2395-QRG 1
Main Parts List (Bulk Package)
Description QuantityPart Number
Supermicro Motherboard with passive heatsink
(-WOHS SKU does not include a heatsink)
X12STN-H/-E/-L/-C
X12STN-H/-E/-L/-C-WOHS 1
DC IN power cable CBL-PWEX-1029 1
Optional Parts List
Description QuantityPart Number
Power adapter MCP-250-10137-0N 1
Heat Spreader MCP-350-00008-0N 1
12V/5V SATA power cable CBL-PWEX-1032 1
DC IN Power Cable (DC Jack) CBL-PWEX-1110-15 1
Chapter 1
Introduction
Congratulations on purchasing your computer motherboard from an industry leader. Supermicro
boards are designed to provide you with the highest standards in quality and performance.
In addition to the motherboard, several important parts that are included with the system are
listed below. If anything listed is damaged or missing, contact your retailer.
1.1 Checklist

9
Chapter 1: Introduction
Important Links
For your system to work properly, follow the links below to download all necessary drivers/
utilities and the user’s manual for your server.
• Supermicro product manuals: https://www.supermicro.com/support/manuals/
• Product drivers and utilities: https://www.supermicro.com/wdl/driver/
• Product safety info: https://www.supermicro.com/about/policies/safety_information.cfm
• A secure data deletion tool designed to fully erase all data from storage devices can be
found at our website: https://www.supermicro.com/about/policies/disclaimer.cfm?url=/wdl/
utility/Lot9_Secure_Data_Deletion_Utility/
• If you have any questions, contact our support team at: support@supermicro.com
This manual may be periodically updated without notice. Check the Supermicro website for
possible updates to the manual revision level.

10
Super X12STN-H/-E/-L/-C Series Motherboards User's Manual
Top Side Motherboard Image (X12STN-H/-E/-L/-C Series)
Figure 1-1. X12STN-H/-E/-L/-C Series Motherboards Motherboard Images
Note: All graphics shown in this manual were based upon the latest PCB revision
available at the time of publication of the manual. The motherboard you received may
or may not look exactly the same as the graphics shown in this manual.
Top Side Motherboard Image (X12STN-H/-E/-L/-C-WOHS Series)
Bottom Side Motherboard Image

11
Chapter 1: Introduction
Top Mechanical Drawing
Bottom Mechanical Drawing
Figure 1-4. Motherboard Mechanical Drawings
(Not drawn to scale)
Note: Components not documented are for internal testing only.

12
Super X12STN-H/-E/-L/-C Series Motherboards User's Manual
Back Pane I/O with Heatsink
Back Pane I/O without Heatsink
Back Pane I/O with Heat Spreader
Figure 1-4. Back Panel I/O Mechanical Drawings
(Not drawn to scale)

13
Chapter 1: Introduction
JPME2
JMD1
JMD2
JMD3
JSIM1
SRW3
JSMBUS1
X12STN-C
REV: 1.10
JPT1
DIMMB1
DIMMA1
DESIGNED IN USA
SRW5 SRW2
SRW1
SRW4
Bottom Layout
Top Layout
SRW3
Quick Reference
Notes:
• See Chapter 2 for detailed information on jumpers, I/O ports, and JF1 front panel connec-
tions. Jumpers and LED indicators not indicated are used for testing only.
• " " indicates the location of Pin 1.
CPU
JHDMI1
BT1
MH4
USB0/1
USB2/3
MH2
JSPKR1
AUDIO FP
I-SATA0JPH1
JCOM2JCOM1
LVDS1
3
JLCDPWR1
JPW1
FAN1
1
JHDMI2 JGP1
JF1
LAN1LAN2LED1
USB4/5 (3.1)USB6/7 (3.1)
JSIM1_OPT
JHDMI1
JHDMI2
JSIM1_OPT
USB0/1
JF1
LAN1
CPU
JPW1
LVDS1
I-SATA0
JGP1
JCOM1
JLCDPWR1
JCOM2
JSPKR1
AUDIO FP
BT1
LAN2
USB4/5
USB6/7
JSIM1
JMD3
DIMMA1
JPT1
JPME2
USB2/3
JPH1
FAN1
DIMMB1
JMD1
JMD2
JSMBUS1
LED1
SRW1 SRW4
SRW5 SRW2

14
Super X12STN-H/-E/-L/-C Series Motherboards User's Manual
Quick Reference Table
Jumper Description Jumper Setting (Default *)
JLCDPWR1 LVDS Panel VCC Power Source Selection Pin 1-3* (3.3V), Pin 3-5 (5V), Pin 3-4 (12V)
JPME2 CMOS Pin 1-3* (Normal), Pin 3-5 (Clear CMOS)
JPME2 Manufacturing Mode Pin 2-4 (Manufacturing Mode)
Pin 4-6* (Normal)
JPT1 TPM Enable Pin 1-3* (Enable), Pin 3-5 (Disable)
JPT1 Force Power On Pin 2-4* (Force power on)
Pin 4-6 (Power button power on)
JSIM1_OPT SIM Detect Option Pin 2-4* (Normal)
Pin 4-6 (Low Activity)
LED Description Status
LED1 Onboard Power LED
Green: System On
Red: S5 or main power fail
O󰀨: System O󰀨 (power cable not connected)
Connector Description
AUDIO FP Front Panel Audio Header (Mic-In/Line-Out)
BT1 Battery Connector
(To Clear CMOS, remove the battery, short pins 1-2 and install the battery.)
FAN1 System Fan Header
I-SATA0 SATA 3.0 Port
JCOM1: COM1/COM2 COM Header (two RS232/RS422/RS485)
JCOM2: COM3/COM4 COM Header (two RS232 ports)
JF1 Front Control Panel Header (Power/HDD LED, Reset, Power button)
JGP1 8-bit General Purpose I/O Header
JHDMI1 Back Panel HDMI 2.0b Port
JHDMI2 Back Panel HDMI 1.4b Port
JMD1 M.2 Slot B-KEY 2280/2242/3042 (SATA 3.0 or PCIe / USB 3.1 /USB 2.0)
JMD2 M.2 Slot E-KEY 2230 (PCIe / USB 2.0 / CVNi)
JMD3 M.2 Slot M-KEY 2280/2242 (PCIe Gen4 x4)
JPH1 4-pin HDD Power Connector
JPW1 8-pin 12-24V Power Connector
JSIM1 JSIM1 Nano SIM Card Slot (bottom side)
JSMBUS1 System Management Bus Header
JSPKR1 Audio Speaker Output with 3W Ampliîšżer
LAN1, LAN2 2.5 Gigabit Ethernet Ports
LVDS1 Dual Channel 48-bit LVDS Connector
SRW1 ~ SRW5 M.2 Mounting holes
USB0/1 Front accessible USB 2.0 Headers
USB2/3 Front accessible USB 2.0 Headers
USB5 Back Panel USB 3.1 Type C Port (Supports DP1.4a with Alt. Mode)
USB4/6/7 Back Panel USB 3.1 Type A Ports

15
Chapter 1: Introduction
Motherboard Features
CPU
• X12STN-H/-H-WOHS supports 11th Generation Intel Core™ i7-1185GRE
• X12STN-E/-E-WOHS supports 11th Generation Intel Core™ i5-1145GRE
• X12STN-L/-L-WOHS supports 11th Generation Intel Core™ i3-1115GRE
• X12STN-C/-C-WOHS supports 11th Generation Intel CELERON 6305E
Memory
• Supports up to 64GB of Non-ECC SO-DIMM (32GB per SO-DIMM) DDR4 memory with speeds of up to 3200MHz
DIMM Size
• Up to 32GB
Expansion Slots
• One M.2 B-Key 3042/2242/2280 (PCIe or SATA/USB3/USB2) with nano SIM holder
• One M.2 E-Key 2230 (PCIe/USB2/CNVi)
• One M.2 M-Key 2242/2280 (PCIe 4.0 x4)
Network
• Dual LAN with Intel 2.5G Ethernet Controller i225IT with RJ45
Graphics
• Intel UHD Graphics for 11th Gen
(X12STN-L/-C)
• Intel Iris® Xe Graphics
(X12STN-H/-E)
(Up to 96 graphics execution units,
four independent display pipes,
capable of up to two channels of
four channels of 4K60)
• Features: OpenGL 4.5, DirectX 12, OpenCL 2.2, Intel Built-in Visuals, Intel Quick
Sync Video, PlayReady 3, SGX-CP
• Hardware Decode: 5K60 10b 4:4:4 HEVC/VP9/SCC, 8K60 12b 4:2:0 HEVC/
VP9/SCC, 8K30 10b 4:2:0 AV1, 4K60 8b 4:2:0 AVC
• Hardware Encode: 4K60 10b 4:4:4 HEVC/VP9/SCC, 8K30 or 5K60 8b/10b 4:2:0
HEVC/VP9/SCC, 4K60 8b 4:2:0 AVC
I/O Devices
• Video
• One HDMI2.0b port (max. resolution up to 4096x2304 at 60Hz).
• One HDMI 1.4 port (max. resolution up to 4096x2160 at 30Hz).
• One DP1.4a port (Type-C Alt mode, max. resolution up to 7680 × 4320 at
30Hz).
• One Dual channel 48-bit LVDS (max. resolution up to 1920x1200 at 60Hz).
• COM Ports • Four front accessible ports
(JCOM1 supports two RS232/433/485, JCOM2 supports two RS232)
• SATA Ports One SATA (6Gb/s) port (I-SATA1)•
• Audio Header
• One HD Audio header with Mic-In/Headphone-out (Realtek ALC888S)
(Audio only supports 0-60ÂşC)
• • GPIO Header One 8-bit General Purpose Input/Output Header
• • SMBus Header One SMBus box header
• • Audio Speaker Output One Audio Speaker Output with 3W Amplier Header
• • Fan One System Fan
• • TPM One Onboard TPM 2.0 SPI Chip
Motherboard Features

16
Super X12STN-H/-E/-L/-C Series Motherboards User's Manual
Note: The CPU maximum thermal design power (TDP) is subject to chassis and
heatsink cooling restrictions. For proper thermal management, check the chassis and
heatsink speciîšżcations for proper CPU TDP sizing.
Motherboard Features
Peripheral Devices
• Three USB 3.1 ports on the rear I/O panel (USB4 and USB6/7 are Type A)
• One USB 3.1 port on the rear I/O panel (USB5 is Type-C, supports DP1.4a with Alt. Mode)
• Four USB 2.0 headers (USB0/1 and USB2/3 are pin headers)
BIOS
• 256Mb SPI AMI BIOS®
• ACPI 6.3, SMBIOS 3.4, UEFI 2.7, PCI F/W 3.0, BIOS rescue hotkey, RTC (Real Time Clock) wakeup
Power Management
• ACPI power management
• S3, S4, S5
• Power-on mode for AC power recovery
• Wake On LAN
• Management Engine
• Force Power On by Jumper
• RTC Battery (typical voltage: 3.0V, normal discharge capacity: 210mAh)
System Health Monitoring
• Onboard voltage monitoring for +12V, +5V, +3.3V, +3.3V standby, +1.2V, VCGI, VBAT, and system temperature
• CPU switching phase voltage regulator
• CPU thermal trip support
Fan Control
• Fan status monitoring with rmware
• Multi-speed fan control via SIO
System Management
• Intel vPro™ (X12STN-H/-E only)
• Trusted Platform Module (TPM) 2.0
• SuperDoctor® 5, Watch Dog, NMI, RoHs
LED Indicators
• Power/Suspend-state indicator LED
Mechanical Speciîšżcation
• Dimensions: 4" (L) x 5.75" (W) (102mm x 146mm) SBCs
• Total Height: 32.88mm
Environment
• Operating Temperature Range: X12STN-H/-E/-L supports -40°C ~ 60°C (-40°F ~ 140°F), X12STN-H/-E/-L-WOHS supports
-40°C ~ 85°C (-40°F ~ 185°F), X12STN-C supports 0°C ~ 60°C (32°F ~ 140°F), X12STN-C-WOHS supports 0°C ~ 85°C
(32°F ~ 185°F)
• Non-Operating Temperature Range: -40°C ~ 85°C (-40°F - 185°F)
• Operating Relative Humidity Range: 8% ~ 90% (non-condensing)
• Non-Operating Relative Humidity Range: 10% ~ 95% (non-condensing)

17
Chapter 1: Introduction
Note: The above is a general block diagram and may not exactly represent the fea-
tures on your motherboard. See the previous pages for the actual speciîšżcations of
your motherboard.
Figure 1-5.
System Block Diagram
Intel - U3
I/O PANEL LAYOUT
DUAL CHANNEL MAX. 64G SO-DIMM Support
DDR4 3200 MHz
DIMMA
TCP3
USB2.0[1]
USB3.1[1]
Rear USB3.1 connector (USB 1)
480Mb/s USB2.0[10]
eSPI
SIO
NCT6126D
SATA[0]
GLAN1
INTEL I225IT
PCIE[7]
RJ45
GLAN2
INTEL I225IT
RJ45
PCIe Gen3 x 1
PCIE[8] 8.0GT/s
PCIe Gen3 x 1
8.0GT/s
PCIE[12]
WLAN+BT
480Mb/s
Debug Header (Port 80)
A
Non-ECC SODIMM DDR4 support
CLINK
CNVi M.2 SLOT (E KEY)
DDIB
HDMI connector RE_TIMER
USB2.0[5]
USB2.0[6]
480Mb/s
480Mb/s
USB2.0 Header (USB 5)
USB2.0 Header (USB 4)
USB3.1[2]
COM 1 / 2 (RS232/422/485)
COM 3 / 4 (RS232)
M.2 SLOT (M KEY)
PCIe-SSD/NVMEPCIe Gen4 x 4
16.0GT/s per lane
USB2.0[7]
USB2.0[8]
480Mb/s
480Mb/s
USB2.0 Header (USB 7)
USB2.0 Header (USB 6)
UIM
DIMMB
B
SATA 6Gb/s SATA0
USB3.1[3]
Rear USB3.1 connector (USB 3)
Rear USB3.1 connector (USB 2)
USB3.1 Gen2 x 1
10.0GT/s
USB3.1[4]
USB2.0[9] 480Mb/s
SATA 6Gb/s
SATA[1A]
HDMI 2.0b
21
HDMI 1.4b
ALC888S-VD2-GR
FRONT AUDIO Header
(Mic-in/Line-out)
Audio
NXP PCA9554 SMBUS
SMBUS Header
8-bit GPIO Header
TCP0
HDMI connector
HDMI 1.4b
eDP
USB 3.1 (10G)
TYPE-C
HDMI 2.0b
PCIE4
LVDS Connector PTN3460
eDP to LVDSBridge
0 ~ 70 degree
SPI
FLASH
SPI 256Mbits
SPI
TPM
INFINEON
SLB9670V
-20 ~ 85
-35 ~ 85
AUDIO AMP
USB 3.1
TYPE-C
USB 3.1
USB 3.1
ALC105-VF
LOW
ACTIVE
DETECTOR
10.0Gb/s
8.0GT/s
PCIe Gen3 x 1
10.0Gb/s USB2.0[2]
USB2.0[3]
10.0Gb/s
10.0Gb/s USB2.0[4]
LAN1 LAN2
High Definition REALTEK
M.2 SLOT (B KEY) Nano SIM
Figure 1-6.
Model CPU Base
Freq
Turbo
Freq
CPU
TDP
2.5GbE HDMI LVDS USB
3.1
Gen2
USB
2.0
GPIO TPM vPro Temp
X12STN-H/
X12STN-H-WOHS
i7-
1185GRE
1.8 4.4 15W 48-bit 8-bit 2.0 -40-60C/2 2 4 4 Yes
-40-85C
X12STN-E/
X12STN-E-WOHS
i5-
1145GRE
1.5 4.1 15W 48-bit 8-bit 2.0 -40-60C/2 2 4 4 Yes
-40-85C
X12STN-L/
X12STN-L-WOHS
i3-
1115GRE
2.2 3.9 15W 48-bit 8-bit 2.0 No -40-60C/2 2 4 4
-40-85C
X12STN-C/
X12STN-C-WOHS
Celeron
6305E
1.8 N/A 15W 48-bit 8-bit 2.0 No 0-60C/2 2 4 4
0-85C
X12STN Series Speciîšżcation Chart

19
Chapter 1: Introduction
1.5 Power Supply
As with all computer products, a stable power source is necessary for proper and reliable
operation. It is even more important for processors that have high CPU clock rates. In areas
where noisy power transmission is present, you may choose to install a line îšżlter to shield
the computer from noise. It is recommended to also install a power surge protector to help
avoid problems caused by power surges.
1.6 Super I/O
The Super I/O (NCT6106D chip) provides four high-speed, 16550 compatible universal
asynchronous receiver-transmitter (UART) serial communication ports, one of which supports
IrDA serial infrared communication. Each UART includes a 128 byte send/receive FIFO, a
programmable baud rate generator, complete modem control capability, and a processor
interrupt system. UARTs provide legacy speed with a baud rate of up to 115.2 Kbps as well
as an advanced speed with baud rates of 250 K, 500 K, or 1 Mb/s, which support higher
speed modems.
The Super I/O provides functions that comply with ACPI, which includes support of legacy
and ACPI power management through a SMI or SCI function pin. It also features auto power
management to reduce power consumption.
The IRQs, DMAs and I/O space resources of the Super I/O can be exibly adjusted to meet
ISA PnP requirements, which support ACPI and APM (Advanced Power Management).

20
Super X12STN-H/-E/-L/-C Series Motherboards User's Manual
Chapter 2
Installation
2.1 Static-Sensitive Devices
Electrostatic Discharge (ESD) can damage electronic com ponents. To prevent damage to your
motherboard, it is important to handle it very carefully. The following measures are generally
su󰀩cient to protect your equipment from ESD.
Precautions
• Use a grounded wrist strap designed to prevent static discharge.
• Touch a grounded metal object before removing the board from the antistatic bag.
• Handle the board by its edges only; do not touch its components, peripheral chips, memory
modules or gold contacts.
• When handling chips or modules, avoid touching their pins.
• Put the motherboard and peripherals back into their antistatic bags when not in use.
• For grounding purposes, make sure your chassis provides excellent conductivity between
the power supply, case, mounting fasteners, and motherboard.
• Use only the correct type of CMOS onboard battery as specied by the manufacturer.
Unpacking
The motherboard is shipped in antistatic packaging to avoid static damage. When unpacking
the motherboard, make sure that the person handling it is static protected.

21
Chapter 2: Installation
CPU
JHDMI1
BT1
MH4
USB0/1
USB2/3
MH2
JSPKR1
AUDIO FP
I-SATA0JPH1
JCOM2JCOM1
LVDS1
MH3
JLCDPWR1
JPW1
FAN1
MH1
JHDMI2 JGP1
JF1
LAN1LAN2
LED1
USB4/5 (3.1)USB6/7 (3.1)
JSIM1_OPT
2.2 Motherboard Installation
All motherboards have standard mounting holes to t di󰀨erent types of chassis. Make
sure that the locations of all the mounting holes for both the motherboard and the chassis
match. Although a chassis may have both plastic and metal mounting fasteners, we highly
recommend metal ones because they ground the motherboard to the chassis. Make sure
that the metal stando󰀨s click in or tightly are screwed in.
Location of Mounting Holes
Note: 1) To avoid damaging the motherboard and its components, do not use a force
greater than 8 lbf/in on each mounting screw during motherboard installation. 2) Some
components are very close to the mounting holes. Take precautionary measures to
avoid damaging these components when installing the motherboard to the chassis.
Phillips Screwdriver (1) Stando󰀨s (4)
Only if Needed
Phillips Screws (4)
Tools Needed

22
Super X12STN-H/-E/-L/-C Series Motherboards User's Manual
Installing the Motherboard
1. Locate the mounting holes on the motherboard. See the previous page for the location.
2. Locate the matching mounting holes on the chassis. Align the mounting holes on the
motherboard against the mounting holes on the chassis.
3. Install stando󰀨s in the chassis as needed.
4. Install the motherboard into the chassis carefully to avoid damaging other motherboard
components.
5. Using the Phillips screwdriver, insert a Phillips head #6 screw into a mounting hole on
the motherboard and its matching mounting hole on the chassis.
6. Repeat Step 5 to insert #6 screws into all mounting holes.
7. Make sure that the motherboard is securely placed in the chassis.
Note: Images displayed are for illustration only. Your chassis or components might
look di󰀨erent from those shown in this manual.

23
Chapter 2: Installation
2.3 Memory Support and Installation
Note: Check the Supermicro website for recommended memory modules.
Important: Exercise extreme care when installing or removing DIMM modules to pre-
vent any possible damage.
Memory Support
The X12STN supports up to 64GB of 3200MHz DDR4 Non-ECC/ECC SODIMM in two
memory slots on the bottom side of the motherboard.
JPME2
JMD1
JMD2
JMD3
JSIM1
SRW3
JSMBUS1
X12STN-C
REV: 1.10
JPT1
DIMMB1
DIMMA1
DESIGNED IN USA
SRW5 SRW2
SRW1
SRW4
DIMMA1
Bottom Layout
DIMMB1

24
Super X12STN-H/-E/-L/-C Series Motherboards User's Manual
SO-DIMM Installation
1. Position the SO-DIMM module's bottom key so it aligns with the receptive point on the
slot.
2. Insert the SO-DIMM module vertically at about a 45-degree angle. Press down until the
module locks into place.
Align
Insert this end îšżrst Press down until the module
locks into place.
3. The side clips automatically secure the SO-DIMM module, locking it into place.
Locking clip
SO-DIMM Removal
1. Push the side clips at the end of slot to release the SO-DIMM module. Pull the SO-
DIMM module up to remove it from the slot.

27
Chapter 2: Installation
CPU
JHDMI1
BT1
MH4
USB0/1
USB2/3
MH2
JSPKR1
AUDIO FP
I-SATA0
JPH1
JCOM2JCOM1
LVDS1
MH3
JLCDPWR1
JPW1
FAN1
MH1
JHDMI2 JGP1
JF1
LAN1LAN2
LED1
USB4/5 (3.1)
USB6/7 (3.1)
JSIM1_OPT
12
1. LAN1
2. LAN2
LAN Ports
Two LAN ports (LAN1/LAN2) are located on the I/O back panel. These ports accept RJ45
type cables. Refer to the LED Indicator section for LAN LED information. Refer to the table
below for pin deîšżnitions.
LAN Port
Pin Deîšżnition
Pin# Pin#Deîšżnition Deîšżnition
A1 TD1+ YEL+A11
A2 TD1- A12 YEL-
A3 TD2+ A13 GRN+/ORG-
A4 TD2- A14 GRN-/ORG+
A5 GND A15 GND
A6 GND A16 GND
A7 TD3+ A17 NA
A8 TD3- A18 NA
A9 TD4+ A19 NA
A10 TD4- A20 NA

28
Super X12STN-H/-E/-L/-C Series Motherboards User's Manual
CPU
JHDMI1
BT1
MH4
USB0/1
USB2/3
MH2
JSPKR1
AUDIO FP
I-SATA0
JPH1
JCOM2JCOM1
LVDS1
MH3
JLCDPWR1
JPW1
FAN1
MH1
JHDMI2 JGP1
JF1
LAN1LAN2
LED1
USB4/5 (3.1)USB6/7 (3.1)
JSIM1_OPT
Back Panel USB 3.1 Type A (USB6/7)
Pin Deîšżnitions
Pin# Pin#Deîšżnition Deîšżnition
A1 VBUS B1 VBUS
A2 D6-N B2 D7-N
A3 D6-P B3 D7-P
A4 GND B4 GND
A5 Stda_SSRX6-N B5 Stda_SSRX7-N
A6 Stda_SSRX6-P B6 Stda_SSRX7-P
A7 GND B7 GND
A8 Stda_SSTX6-N B8 Stda_SSTX7-N
A9 Stda_SSTX6-P B9 Stda_SSTX7-P
Universal Serial Bus (USB) Ports
There are three USB 3.1 Type A ports (USB4 and USB6/7) and one USB 3.1 Type C port
(USB5) on the I/O back panel. The motherboard also has four front access USB 2.0 headers
(USB0/1 and USB2/3). The onboard headers can be used to provide front side USB access
with a cable. Two USB 2.0 cables for front panel support are included with the motherboard.
USB 3.1 cables are optional.
1
2
1. USB0/1
2. USB2/3
3. USB4
4. USB5
5. USB6/7
4
3
Front Panel USB 2.0 Headers 0/1 and 2/3
Pin Deîšżnitions
Pin# Pin#Deîšżnition Deîšżnition
1 2P5V_DUAL_F P5V_DUAL_F
3USBCON_N0/
USBCON_N2 4USBCON_N1/
USBCON_N3
5USBCON_P0/
USBCON_P2 6USBCON_P1/
USBCON_P3
7 8Ground Ground
9 Key 10 NC
5
Back Panel USB 3.1 Type C (USB5)
Pin Deîšżnitions
Pin# Pin#Deîšżnition Deîšżnition
A1 GND B12 GND
A2 USB31_SW1_TXP USB31_SW1_RXPB11
A3 USB31_SW1_TXM B10 USB31_SW1_RXN
A4 P5VSB_TYPEC B9 P5VSB_TYPEC
A5 A_CC1 B8 NC
A6 NC B7 NC
A7 NC B6 NC
A8 NC B5 A_CC2
A9 P5VSB_TYPEC B4 P5VSB_TYPEC
A10 USB31_SW2_RXN B3 USB31_SW2_TXN
A11 USB31_SW2_RXP B2 USB31_SW2_TXP
A12 GND B1 GND
Back Panel USB 3.1 Type A (USB4)
Pin Deîšżnitions
Pin# Pin#Deîšżnition Deîšżnition
1 2VBUS D4-N
3 4D4-P GND
5 6SSRXN SSRXP
7 8GND SSTXN
9 SSTXP 10

30
Super X12STN-H/-E/-L/-C Series Motherboards User's Manual
87
3.3V Stby
3.3V HDD LED
Power LED
21
Reset Button
Power Button
Ground
Ground
1
2
1. Power Button
2. Reset Button
Power Button
The Power Button connection is located on pins 1 and 2 of JF1. Momentarily contacting both
pins will power on/o󰀨 the system. This button can also be congured to function as a suspend
button (with a setting in the BIOS - see Chapter 4). To turn o󰀨 the power in the suspend
mode, press the button for at least 4 seconds. Refer to the table below for pin deîšżnitions.
Power Button
Pin Deîšżnitions (JF1)
Pin# Deîšżnition
1 Power Button
2 GND
Reset Button
The Reset Button connection is located on pins 3 and 4 of JF1. Attach it to a hardware reset
switch on the computer case to reset the system. Refer to the table below for pin deîšżnitions.
Reset Button
Pin Deîšżnitions (JF1)
Pin# Deîšżnition
3 Reset
4 Ground

31
Chapter 2: Installation
Power LED
The Power LED connection is located on pins 7 and 8 of JF1. Refer to the table below for
pin deîšżnitions.
Power LED
Pin Deîšżnitions (JF1)
Pin# Deîšżnition
7 +3.3VSB
8 Power LED LOW
HDD LED
The HDD LED connection is located on pins 5 and 6 of JF1. Attach a cable here to indicate
the status of HDD-related activities, including SATA activities. Refer to the table below for
pin deîšżnitions.
HDD LED
Pin Deîšżnitions (JF1)
Pin# Deîšżnition
5 +3.3V
6 HDD Active LOW
1. HDD LED
2. Power LED
87
3.3V Stby
3.3V HDD LED
Power LED
21
Reset Button
Power Button
Ground
Ground
1
2
Product specificaties
Merk: | Supermicro |
Categorie: | Moederbord |
Model: | X12STN-E |
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