Advantech SOM-E780 User manual

User Manual
SOM-E780
AMD EPYC™ 7003 Processor
COM-HPC® Server Size E
Module with Proprietary Pinout

SOM-E780 User Manual ii
Copyright
The documentation and the software included with this product are copyrighted 2023
by Advantech Co., Ltd. All rights are reserved. Advantech Co., Ltd. reserves the right
to make improvements in the products described in this manual at any time without
notice. No part of this manual may be reproduced, copied, translated, or transmitted
in any form or by any means without the prior written permission of Advantech Co.,
Ltd. The information provided in this manual is intended to be accurate and reliable.
However, Advantech Co., Ltd. assumes no responsibility for its use, nor for any
infringements of the rights of third parties that may result from its use.
Acknowledgments
AMD® is a trademark of the AMD Corporation.
Microsoft Windows and MS-DOS are registered trademarks of Microsoft Corp.
All other product names or trademarks are properties of their respective owners.
Product Warranty (2 years)
Advantech warrants the original purchaser that each of its products will be free from
defects in materials and workmanship for two years from the date of purchase.
This warranty does not apply to any products that have been repaired or altered by
persons other than repair personnel authorized by Advantech, or products that have
been subject to misuse, abuse, accident, or improper installation. Advantech
assumes no liability under the terms of this warranty as a consequence of such
events.
Because of Advantech’s high quality-control standards and rigorous testing, most
customers never need to use our repair service. If an Advantech product is defective,
it will be repaired or replaced free of charge during the warranty period. For out-of-
warranty repairs, customers will be billed according to the cost of replacement mate-
rials, service time, and freight. Please consult your dealer for more details.
If you believe your product to be defective, follow the steps outlined below.
1. Collect all the information about the problem encountered. (For example, CPU
speed, Advantech products used, other hardware and software used, etc.) Note
anything abnormal and list any onscreen messages displayed when the prob-
lem occurs.
2. Call your dealer and describe the problem. Please have your manual, product,
and any helpful information readily available.
3. If your product is diagnosed as defective, obtain a return merchandise authori-
zation (RMA) number from your dealer. This allows us to process your return
more quickly.
4. Carefully pack the defective product, a completed Repair and Replacement
Order Card, and a proof of purchase date (such as a photocopy of your sales
receipt) into a shippable container. Products returned without a proof of pur-
chase date are not eligible for warranty service.
5. Write the RMA number clearly on the outside of the package and ship the pack-
age prepaid to your dealer.
Part No. 2006E78000 Edition 1
Printed in Taiwan October 2023

iii SOM-E780 User Manual
Declaration of Conformity
CE
This product has passed the CE test for environmental specifications when shielded
cables are used for external wiring. We recommend the use of shielded cables. This
type of cable is available from Advantech. Please contact your local supplier for
ordering information.
Test conditions for passing also include the equipment being operated within an
industrial enclosure. In order to protect the product from damage caused by electro-
static discharge (ESD) and EMI leakage, we strongly recommend the use of CE-
compliant industrial enclosure products.
FCC Class B
This equipment has been tested and found to comply with the limits for a Class B dig-
ital device, pursuant to part 15 of the FCC Rules. These limits are designed to pro-
vide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. However, there is no guarantee that interfer-
ence will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by one
or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
Consult the dealer or an experienced radio/TV technician for assistance.
FM
This equipment has passed FM certification. According to the National Fire Protec-
tion Association, work sites are categorized into different classes, divisions, and
groups based on hazard considerations. This equipment is compliant with the specifi-
cations for Class I, Division 2, Groups A, B, C, and D indoor hazards.
Technical Support and Assistance
1. Visit the Advantech website at www.advantech.com/support to obtain the latest
product information.
2. Contact your distributor, sales representative, or Advantech's customer service
center for technical support if you need additional assistance. Please have the
following information ready before calling:
–Product name and serial number
–Description of your peripheral attachments
–Description of your software (operating system, version, application software,
etc.)
–A complete description of the problem
–The exact wording of any error messages

SOM-E780 User Manual iv
Warnings, Cautions, and Notes
Document Feedback
To assist us with improving this manual, we welcome all comments and constructive
criticism. Please send all feedback in writing to [email protected].
Packing List
Before setting up the system, check that the items listed below are included and in
good condition. If any item does not accord with the table, please contact your dealer
immediately.
SOM-E780 CPU module
Warning! Warnings indicate conditions that could cause personal injury if not
observed!
Caution! Cautions are included to help prevent hardware damage and data loss.
For example,
“Batteries are at risk of exploding if incorrectly installed. Do not attempt
to recharge, force open, or heat the battery. Replace the battery only
with the same or equivalent type as recommended by the manufacturer.
Discard used batteries according to the manufacturer's instructions.”
Note! Notes provide additional and/or optional information.

v SOM-E780 User Manual
Selection Guide w/ P/N
* Other combination is project based support. Please contact sales for details.
Thermal solution is not included in standard package, please remember to place
order for thermal solution.
Development Board
Optional Accessories
Safety Precautions - Static Electricity
Follow these simple precautions to protect yourself from harm and the products from
damage.
To avoid electrical shock, always disconnect the power from the PC chassis
before manual handling. Do not touch any components on the CPU card or
other cards while the PC is powered on.
Disconnect the power before making any configuration changes. A sudden rush
of power after connecting a jumper or installing a card may damage sensitive
electronic components.
Part No CPU Cores Base
Freq.
Max
Turbo
Freq.
CPU TDP CPU
Threads
DDR4
RDIMM/
LRDIMM
Thermal
solution
Operating
Temp.
SOM-
E780S64-
U0A1
EPYC™
7713P 64 2.0GHz 3.675GHz 225W 128 3200 MHz
Active *
Optional
Accessories
0 ~ 60 °C
SOM-
E780S32-
U8A1
EPYC™
7543P 32 2.8GHz 3.7GHz 225W 64 3200 MHz
Active *
Optional
Accessories
0 ~ 60 °C
SOM-
E780S24-
U8A1
EPYC™
7443P 24 2.85GHz 4.0GHz 200W 48 3200 MHz
Active *
Optional
Accessories
0 ~ 60 °C
SOM-
E780S16-
H0A1
EPYC™
7313P 16 3.0GHz 3.7GHz 155W 32 3200 MHz
Active *
Optional
Accessories
0 ~ 60 °C
Part No. Description
SOM-DH7000-00A1 COM-HPC Size E proprietary Dev. Board A1
Part No. Description
1970005652T001 One piece heatsink, 225W 119.3x78.9x22.6mm
1970005648N000 C.L R3 200x160x100.96mm SC SOM-E780

SOM-E780 User Manual vi
Safety Instructions
1. Read these safety instructions carefully.
2. Retain this user manual for future reference.
3. Disconnect the equipment from all power outlets before cleaning. Use only a
damp cloth for cleaning. Do not use liquid or spray detergents.
4. For pluggable equipment, the power outlet socket must be located near the
equipment and easily accessible.
5. Protect the equipment from humidity.
6. Place the equipment on a reliable surface during installation. Dropping or letting
the equipment fall may cause damage.
7. The openings on the enclosure are for air convection. Protect the equipment
from overheating. Do not cover the openings.
8. Ensure that the voltage of the power source is correct before connecting the
equipment to a power outlet.
9. Position the power cord away from high-traffic areas. Do not place anything over
the power cord.
10. All cautions and warnings on the equipment should be noted.
11. If the equipment is not used for a long time, disconnect it from the power source
to avoid damage from transient overvoltage.
12. Never pour liquid into an opening. This may cause fire or electrical shock.
13. Never open the equipment. For safety reasons, the equipment should be
opened only by qualified service personnel.
14. If any of the following occurs, have the equipment checked by service person-
nel:
–The power cord or plug is damaged.
–Liquid has penetrated the equipment.
–The equipment has been exposed to moisture.
–The equipment is malfunctioning, or does not operate according to the user
manual.
–The equipment has been dropped and damaged.
–The equipment shows obvious signs of breakage.
15. Do not leave the equipment in an environment with a storage temperature of
below -20 °C (-4 °F) or above 60 °C (140 °F) as this may damage the compo-
nents. The equipment should be kept in a controlled environment.
16. CAUTION: Batteries are at risk of exploding if incorrectly replaced. Replace only
with the same or equivalent type as recommended by the manufacturer. Discard
used batteries according to the manufacturer’s instructions.
17. In accordance with IEC 704-1:1982 specifications, the sound pressure level at
the operator’s position does not exceed 70 dB (A).
DISCLAIMER: This set of instructions is given according to IEC 704-1. Advantech
disclaims all responsibility for the accuracy of any statements contained herein.

vii SOM-E780 User Manual
Acronyms
Term Define
AC’97 Audio CODEC (Coder-Decoder)
ACPI Advanced Configuration Power Interface – standard to implement power sav-
ing modes in PC-AT systems
BIOS Basic Input Output System – firmware in PC-AT system that is used to initial-
ize system components before handing control over to the operating system
CAN
Controller-area network (CAN or CAN-bus) is a vehicle bus standard
designed to allow microcontrollers to communicate with each other within a
vehicle without a host computer
DDI Digital Display Interface – containing DisplayPort, HDMI/DVI, and SDVO
EAPI
Embedded Application Programmable Interface
Software interface for COM Express® specific industrial function
System information
Watchdog timer
I2C Bus
Flat Panel brightness control
User storage area
GPIO
GbE Gigabit Ethernet
GPIO General purpose input output
HDA
Intel High Definition Audio (HD Audio) refers to the specification released by
Intel in 2004 for delivering high definition audio that is capable of playing back
more channels at higher quality than AC’97
I2C
Inter Integrated Circuit – 2 wire (clock and data) signaling scheme allowing
communication between integrated circuit, primarily used to read and load
register values
ME Management Engine
PC-AT “Personal Computer – Advanced Technology” – an IBM trademark term used
to refer to Intel based personal computer in 1990s
PEG PCI Express Graphics
RTC Real Time Clock – battery backed circuit in PC-AT systems that keeps system
time and date as well as certain system setup parameters
SPD Serial Presence Detect – refers to serial EEPROM on DRAMs that has DRAM
Module configuration information
TPM Trusted Platform Module, chip to enhance the security features of a computer
system
UEFI Unified Extensible Firmware Interface
WDT Watchdog Timer

SOM-E780 User Manual viii

ix SOM-E780 User Manual
Contents
Chapter 1 General Information ............................1
1.1 Introduction ............................................................................................... 2
1.2 Functional Block Diagram ......................................................................... 2
1.3 Product Specifications............................................................................... 3
1.3.1 Compliance ................................................................................... 3
1.3.2 Feature List ................................................................................... 3
Table 1.1: Feature List................................................................. 3
1.3.3 Processor System......................................................................... 4
Table 1.2: Processor System ...................................................... 4
1.3.4 Memory ......................................................................................... 4
1.3.5 Expansion Interfaces .................................................................... 4
Table 1.3: .................................................................................... 5
Table 1.4: .................................................................................... 5
Table 1.5: .................................................................................... 6
Table 1.6: .................................................................................... 6
Table 1.7: .................................................................................... 7
Table 1.8: .................................................................................... 7
1.3.6 Serial Bus...................................................................................... 7
1.3.7 I/O ................................................................................................. 7
Table 1.9: USB 3.2 Gen1 ............................................................ 8
Table 1.10:USB 2.0 ...................................................................... 8
Table 1.11: .................................................................................... 9
Table 1.12: .................................................................................... 9
1.3.8 Power Management.................................................................... 10
1.3.9 Advantech S5 ECO Mode (Deep Sleep Mode)........................... 10
1.3.10 Environmental Specifications...................................................... 10
1.3.11 MTBF .......................................................................................... 11
1.3.12 OS Support ................................................................................. 11
1.3.13 Advantech iManager ................................................................... 11
1.3.14 Power Consumption.................................................................... 11
Table 1.13:Power Consumption Table (Watt.) ........................... 11
1.3.15 Hardware Configuration: ............................................................. 11
1.3.16 Test Conditions: .......................................................................... 11
1.3.17 Performance ............................................................................... 12
1.3.18 Pin Description............................................................................ 12
Chapter 2 Mechanical Information ....................13
2.1 Board Information.................................................................................... 14
Figure 2.1 Board Chips ID – Front............................................. 14
Figure 2.2 Board Chips ID – Rear ............................................. 14
2.2 Mechanical Diagram ............................................................................... 15
Figure 2.3 Board Mechanical Diagram - Front Side .................. 15
Figure 2.4 Board Mechanical Diagram - Rear Side ................... 15
Figure 2.5 Atom Series Board Mechanical Diagram – Side ...... 16
2.3 Assembly Diagram.................................................................................. 16
Figure 2.6 Assembly Diagram ................................................... 16
2.4 Assembly Diagram.................................................................................. 17
2.4.1 Allowable Initial Angular Misalignment........................................ 17
Figure 2.7 Initial Angular Misalignment...................................... 17
2.4.2 Allowable Final Angular Misalignment ........................................ 17
Figure 2.8 Final Angular Misalignment ...................................... 17
2.5 CPU Package Design ............................................................................. 18
Table 2.1: CPU Package Design............................................... 18

SOM-E780 User Manual x
Figure 2.9 CPU and CPU Socket Height and Tolerance........... 18
Chapter 3 AMI BIOS............................................ 19
3.1 Introduction ............................................................................................. 20
Figure 3.1 Setup Program Initial Screen ................................... 20
3.2 Entering Setup ........................................................................................ 21
3.2.1 Main Setup.................................................................................. 21
Figure 3.2 Main Setup Screen................................................... 21
3.2.2 Advanced BIOS Features Setup................................................. 22
Figure 3.3 Advanced Features Setup Screen ........................... 22
Figure 3.4 Trusted Computing................................................... 23
Figure 3.5 PSP Firmware Versions ........................................... 24
Figure 3.6 ACPI Settings ........................................................... 24
Figure 3.7 Embedded Controller ............................................... 25
Figure 3.8 Serial Port 1 Configuration ....................................... 26
Figure 3.9 Serial Port 2 Configuration ....................................... 27
Figure 3.10Hardware Monitor..................................................... 28
Figure 3.11ACPI Report Method Configuration.......................... 28
Figure 3.12Serial Port Console Redirection ............................... 29
Figure 3.13Console Redirection Settings ................................... 30
Figure 3.14CPU Configuration ................................................... 31
Figure 3.15Nude 0 Information................................................... 31
Figure 3.16Debug Port Table Configuration............................... 32
Figure 3.17PCI Subsystem Settings........................................... 33
Figure 3.18USB Configuration.................................................... 34
Figure 3.19Network Stack Configuration.................................... 35
Figure 3.20 CSM Configuration .................................................. 36
Figure 3.21NVMe Configuration ................................................. 37
Figure 3.22NVMe Configuration ................................................. 37
Figure 3.23Option ROM Dispatch Policy.................................... 38
Figure 3.24AMD Mem Configuration Status............................... 40
Figure 3.25Socket 0 ................................................................... 41
Figure 3.26Channel 0 ................................................................. 42
Figure 3.27 Tls Auth Configuration............................................. 42
Figure 3.28Server CA Configuration .......................................... 43
Figure 3.29Enroll Cert ................................................................ 44
3.2.3 Chipset Setup ............................................................................. 45
Figure 3.30Chipset Setup........................................................... 45
Figure 3.31South Bridge............................................................. 46
Figure 3.32SB Debug Configuration........................................... 47
Figure 3.33SB SATA DEBUG Configuration .............................. 48
Figure 3.34SB FUSION DEBUG Configuration.......................... 49
Figure 3.35SB MISC DEBUG Configuration .............................. 49
Figure 3.36CRB Board ............................................................... 50
Figure 3.37CRB Board ............................................................... 51
Figure 3.38 AMD PBS ................................................................ 53
Figure 3.39RAS .......................................................................... 54
Figure 3.40AMD CBS ................................................................. 55
Figure 3.41CPU Common Options............................................. 56
Figure 3.42CPU Common Options............................................. 56
Figure 3.43Performance............................................................. 58
Figure 3.44Prefetcher settings ................................................... 59
Figure 3.45Core Watchdog ........................................................ 60
Figure 3.46UMC Common Options ............................................ 60
Figure 3.47DRAM Timing Configuration..................................... 61
Figure 3.48Accept ...................................................................... 62
Figure 3.49DRAM Controller Configuration................................ 62
Figure 3.50DRAM Power Options .............................................. 63

xi SOM-E780 User Manual
Figure 3.51CAD Bus Configuration ............................................ 64
Figure 3.52Data Bus Configuration ............................................ 65
Figure 3.53Common RAS........................................................... 66
Figure 3.54ECC Configuration.................................................... 67
Figure 3.55Security..................................................................... 68
Figure 3.56Phy Configuration ..................................................... 69
Figure 3.57PMU Training............................................................ 70
Figure 3.58DRAM Memory Mapping .......................................... 71
Figure 3.59NVDIMM ................................................................... 72
Figure 3.60Memory MBIST......................................................... 73
Figure 3.61Data Eye................................................................... 74
Figure 3.62NBIO Common Options............................................ 75
Figure 3.63NBIO Common Options............................................ 76
Figure 3.64SMU Common Options............................................. 78
Figure 3.65LCLK Frequency Control .......................................... 80
Figure 3.66NBIO RAS Common Options ................................... 81
Figure 3.67FCH Common Options ............................................. 83
Figure 3.68SATA Configuration Options .................................... 84
Figure 3.69SATA Controller options ........................................... 85
Figure 3.70SATA Controller Enable ........................................... 86
Figure 3.71Sata3 eSATA............................................................ 87
Figure 3.72USB Configuration Options ...................................... 88
Figure 3.73MCM USB enable..................................................... 89
Figure 3.74Ac Power Loss Options ............................................ 90
Figure 3.75I2C Configuration Options ........................................ 91
Figure 3.76Uart Configuration Options ....................................... 92
Figure 3.77FCH RAS Options .................................................... 93
Figure 3.78Miscellaneous Options ............................................. 94
Figure 3.79North Bridge ............................................................. 95
Figure 3.80Socket 0 Information................................................. 95
3.2.4 Security Chipset.......................................................................... 96
Figure 3.81Security..................................................................... 96
Figure 3.82Secure Boot.............................................................. 97
3.2.5 Boot Setup .................................................................................. 98
Figure 3.83Boot .......................................................................... 98
3.2.6 Save & Exit ................................................................................. 99
Figure 3.84Save & Exit ............................................................... 99
3.2.7 Event Logs ................................................................................ 100
Figure 3.85Event Logs.............................................................. 100
Figure 3.86Change Smbios Event Log Settings....................... 101
Figure 3.87View Smbios Event Log.......................................... 102
Chapter 4 S/W Introduction and Installation ..103
4.1 S/W Introduction.................................................................................... 104
4.2 Driver Installation .................................................................................. 104
4.2.1 Windows Driver Setup .............................................................. 104
4.2.2 Other OS................................................................................... 104
4.3 Advantech iManager ............................................................................. 105
Appendix A Pin Assignment ...............................107
A.1 SOM-E780 Pin Assignment .................................................................. 108
Table A.1: J1 Connector Rows A and B .................................. 108
Table A.2: J1 Connector Rows C and D .................................. 110
Table A.3: J2 Connector Rows E and F................................... 113
Table A.4: J2 Connector Rows G and H.................................. 115

SOM-E780 User Manual xii
Appendix B Watchdog Timer.............................. 119
B.1 Programming the Watchdog Timer ....................................................... 120
Table B.1: Programming the Watchdog Timer ........................ 120
Appendix C Programming GPIO......................... 121
C.1 GPIO Register....................................................................................... 122
Table C.1: GPIO Register ........................................................ 122
Appendix D System Assignments...................... 123
D.1 System I/O Ports................................................................................... 124
Table D.1: System I/O Port ...................................................... 124
D.2 Interrupt Assignments ........................................................................... 126
Table D.2: Interrupt Assignments ............................................ 126
D.3 1st MB Memory Map............................................................................. 137
Table D.3: 1st MB Memory Map .............................................. 137

Chapter 1
1General Information
This chapter details background
information on the SOM-E780 CPU
Computer on Module.
Sections include:
Introduction
Functional Block Diagram
Product Specification

SOM-E780 User Manual 2
1.1 Introduction
The Advantech SOM-E780 is a COM-HPC CPU Module powered by an AMD EPYC
7003 server-grade CPU. It conforms to the COM-HPC Server Size E module with a
proprietary pinout and can accommodate up to 512 gigabytes of DDR4 memory.
What sets it apart is that it offers an impressive 79 PCIe Gen4 lanes, which is 14
more lanes than the standard COM-HPC configuration.
In terms of connectivity, the SOM-E780 is designed to support 1 Intel i225, 2 SATA
3.0 ports, 4 USB 3.2 Gen1 ports, 4 USB 2.0 ports, 2 COM ports (4-wire), and TPM
2.0 functionality. It can operate in temperatures ranging from 0 to 60°C with fan-
equipped cooling (QFCS).
The Advantech iManager (SUSI 4) suite is a comprehensive management solution
that caters to various needs. It offers support for multi-level watchdog timers, voltage
and temperature monitoring, thermal protection and mitigation, LCD backlight control
(on/off and brightness), and embedded storage control. It's worth noting that all
Advantech COM-HPC modules come integrated with iManager and WISE-PaaS/
RMM, enhancing their management capabilities.
1.2 Functional Block Diagram
DDR4-3200 RDIMM
Non-ECC or ECC
SOM-780
AMD
EPYC 7003
Up to 225W
Secondary (Upper) Connector – J2
Primary (Lower) Connector – J1
4 USB2.0
4 USB 3.2 Gen 1
2 SATA 3.0
1 PCIe x16 (8 root ports, Gen4)
8 PCIe x1 (8 root ports, Gen4)
SMBUS
LPC
1 PCIe x1 for BMC (Gen4)
SPI
Boot_SPI
DDR CH-E
DDR4-3200 RDIMM
Non-ECC or ECC
DDR CH-F
DDR4-3200 RDIMM
Non-ECC or ECC
EFI BIOS
Intel I225
EIO-201
TPM2.0 SLB9672
DDR CH-G
DDR4-3200 RDIMM
Non-ECC or ECC
DDR CH-H
1 PCIe x16 (16 root ports, Gen4)
1 PCIe x16 (16 root ports, Gen4)
1 PCIe x16 (16 root ports, Gen4)
6 PCIe x1 (6 root ports, Gen4)
1 PCIe x1 2.5GbE
WDT / GPIOx12 / I2C
SMB / COM2 / FAN / IPMB

3 SOM-E780 User Manual
Chapter 1 General Information
1.3 Product Specifications
1.3.1 Compliance
PICMG COM-HPC Revision 1.10 (proprietary pinout)
Size E 200 x 160 mm
Pin-out Server Type compatible (proprietary pinout)
1.3.2 Feature List
Table 1.1: Feature List
Feature
Type Connector Feature
COM HPC Define SOM-
E780
Max. Min.
Display
J1 eDP 0 0 0
J1 DDI0 0 0 0
J1 DDI1 0 0 0
J2 DDI2 0 0 0
Expansion J1 PCI Express 25 0 25
J2 PCI Express 54 0 54
Serial
J1 SMBus 1 0 1
J1 I2C Bus 202
J1 IPMB 1 0 1
J1 UART 2 0 2
I/O
J1-J2 NBASE-T (max. 10G) 1 0 1
J2 ETH KR (max 25G) 0 0 0
J2 ETH KR CEI 0 0 0
J1 USB 2.0 8 0 4
J1-J2 USB 3.2 Gen 1 4 0 4
J1 USB C PD I2C 1 0 0
J1 Soundwire/DMIC 0 0 0
J1 I2S/2xSNDW 0 0 0
J1 HD Audio 0 0 0
J1 SATA 2 0 2
J1 LPC 1 0 1
J1 BOOT_SPI 1 0 1
J1 GP_SPI 1 0 0
J1 GPIO 12 0 12
J1 MISC 1 0 0
J1 Functional Safety 1 0 0
J1 Fan PWM/Tachometer 2 0 2
J1 Trusted Platform Modules 1 0 1
Power
J1-J2 Power 50 0 50
J1-J2 Standby Power 4 0 4
J1-J2 GND 227 0 227
J1 RSVD 10 0 10

SOM-E780 User Manual 4
1.3.3 Processor System
1.3.4 Memory
There are a total of 4 memory sockets on SOM-E780. These support 128GB max
capacity with 262pin SO- DIMM sockets (dual-channel).
4 x RDIMM, 1 DPC, 3200 MT/s, max DIMM capacity 64GB, up to 256GB
4 x LRDIMM, 1 DPC, 3200 MT/s, max DIMM capacity 128GB, up to 512GB
1.3.5 Expansion Interfaces
1.3.5.1 PCIe Gen4 x16
PCI Express x16: Supports default 3 Groups to have 4 ports PCIe x16 compliant to
PCIe Gen4 (16.0 GT/s) specifications, configurable to PCIe x16, x8, x 4. Several con-
figurable combinations may need BIOS modification. Please contact the Advantech
sales or FAE for more details.
1.3.5.2 PCIe Gen4 x8 (Proprietary*1)
PCI Express x8: Supports default 1 port PCIe x8 compliant to PCIe Gen4 (16.0 GT/s)
specifications, configurable to PCIe x8 or PCIe x4. Several configurable combina-
tions may need BIOS modification. Please contact the Advantech sales or FAE for
more details.
1.3.5.3 PCIe Gen4 x4 (Proprietary*1)
PCI Express x4: Supports default 1 port PCIe x4 compliant to PCIe Gen4 (16.0 GT/s)
specifications, configurable only to PCIe x4.
Table 1.2: Processor System
CPU Cores Cores Base Max Turbo Freq. Cache (MB) TDP(W)
EPYC™ 7713P 64 2.0GHz 3.675GHz 256 225W
EPYC™ 7543P 32 2.8GHz 3.7GHz 256 225W
EPYC™ 7443P 24 2.85GHz 4.0GHz 128 200W
EPYC™ 7313P 16 3.0GHz 3.7GHz 128 155W

5 SOM-E780 User Manual
Chapter 1 General Information
1.3.5.4 PCIe Gen4 x1 (Proprietary *2, BMC *1)
PCI Express x1: Supports default 3 ports PCIe x1 compliant to PCIe Gen4 (16.0 GT/
s) specifications.
Table 1.3:
Group PCIe Lane Source Port Default
Group 0 Low (J1)
PCIe0
PCIE G2 group
#0
PCIe x16_Slot1
PCIe1 #1
PCIe2 #2
PCIe3 #3
PCIe4 #4
PCIe5 #5
PCIe6 #6
PCIe7 #7
Group 0 High (J1)
PCIe8 #8
PCIe9 #9
PCIe10 #10
PCIe11 #11
PCIe12 #12
PCIe13 #13
PCIe14 #14
PCIe15 #15
Table 1.4:
Group PCIe Lane Source Port Default
Group ADD (J1)
PCIeA0
PCIE G1 group
#0
PCIe x8_Slot1
PCIeA1 #1
PCIeA2 #2
PCIeA3 #3
PCIeA4 #4
PCIeA5 #5
PCIeA6 #6
PCIeA7 #7

SOM-E780 User Manual 6
Table 1.5:
Group PCIe Lane Source Port Default
Group 1 (J2)
PCIe16
PCIE P2 group
#0
PCIe x16_Slot2
PCIe17 #1
PCIe18 #2
PCIe19 #3
PCIe20 #4
PCIe21 #5
PCIe22 #6
PCIe23 #7
PCIe24 #8
PCIe25 #9
PCIe26 #10
PCIe27 #11
PCIe28 #12
PCIe29 #13
PCIe30 #14
PCIe31 #15
Table 1.6:
Group PCIe Lane Source Port Default
Group 2 (J2)
PCIe32
PCIE P0 group
#0
PCIe x16_Slot3
PCIe33 #1
PCIe34 #2
PCIe35 #3
PCIe36 #4
PCIe37 #5
PCIe38 #6
PCIe39 #7
PCIe40 #8
PCIe41 #9
PCIe42 #10
PCIe43 #11
PCIe44 #12
PCIe45 #13
PCIe46 #14
PCIe47 #15

7 SOM-E780 User Manual
Chapter 1 General Information
1.3.6 Serial Bus
1.3.6.1 SMBus
Supports SMBus 2.0 specification.
1.3.6.2 I2C Bus
Supports I2C bus 7-bit address modes. Supports standard mode up to 100 Kb/s, fast
mode up to 400 Kb/s.
1.3.7 I/O
1.3.7.1 Gigabit Ethernet
Ethernet: Intel I225 Gigabit LAN supports 10/100/1000 Mbps & 2.5 Gbps Speed.
1.3.7.2 SATA
Supports 2 ports SATA Gen3 (6.0 Gb/s), backward compliant to SATA Gen2 (3.0 Gb/
s) and Gen1 (1.5 Gb/s). The maximum data rate is 600 MB/s. Supports AHCI 1.3.1
mode (does not support IDE mode).
Table 1.7:
Group PCIe Lane Source Port Default
Group 3 (J2)
PCIe48
PCIE P3 group
#0
PCIe x16_Slot4
PCIe49 #1
PCIe50 #2
PCIe51 #3
PCIe52 #4
PCIe53 #5
PCIe54 #6
PCIe55 #7
PCIe56 #8
PCIe57 #9
PCIe58 #10
PCIe59 #11
PCIe60 #12
PCIe61 #13
PCIe62 #14
PCIe63 #15
Table 1.8:
Group PCIe Lane Source Port Default
Group ADD (J1)
PCIeA8
PCIE P1 group
#0
PCIe x4_Slot1
PCIeA9 #1
PCIeA10 #2
PCIeA11 #3
PCIeA12 #4 PCIe x1_Slot2
PCIeA13 #5 PCIe x1_Slot3

SOM-E780 User Manual 8
1.3.7.3 USB 3.2/USB 2.0
COM-HPC supports USB 3.2 but SOM-E780 supports 4 USB 3.2 Gen1 (5 Gbps)
ports and 4 USB 2.0 (480 Mbps) ports.
Notice: Advantech strongly recommends using a certificated cable to maximize USB
3.2 gen1 performance.
1.3.7.4 USB 3.2 Gen1
1.3.7.5 USB 2.0
1.3.7.6 SPI Bus
Supports BIOS flash only. SPI clock can be 50MHz, with a capacity up to 256Mb,
1.8V.
1.3.7.7 GPIO
12 programmable general purpose Input or output (GPIO).
1.3.7.8 Watchdog
Supports multi-level watchdog time-out output. Provides 1-65535 level, from 100ms
to 109.22 minute intervals.
1.3.7.9 Serial port
2 x 2-wire serial port (Tx/Rx) supports 16550 UART compliance.
Programmable FIFO or character mode
16-byte FIFO buffer on transmitter and receiver in FIFO mode
Programmable serial-interface characteristics: 5, 6, 7, or 8-bit character
Even, odd, or no parity bit selectable
1, 1.5, or 2 stop bit selectable
Baud rate up to 115.2K
1.3.7.10 TPM
Support TPM 2.0 module.
1.3.7.11 Smart Fan
Supports 1 Fan PWM control signals and 1 tachometer input for fan speed detection.
Provides 2 on module with connector and the other to the carrier board following
PICMG COM HPC R1.10 specifications.
Table 1.9: USB 3.2 Gen1
Server Type P00 P01 P02 P03
SoC P0 P1 P2 P3
Server Type OC_01 OC_23
SoC USB_OC# OC_01 OC_23
Table 1.10: USB 2.0
Server Type P00 P01 P02 P03
SoC P0 P1 P2 P3
Server Type OC_01 OC_23
SoC USB_OC# OC_01 OC_23