Supero C7Z270-CG-L User manual

C7Z270-CG-L
USER’S MANUAL
Revision 1.0

The information in this User’s Manual has been carefully reviewed and is believed to be accurate. The
vendor assumes no responsibility for any inaccuracies that may be contained in this document, makes
no commitment to update or to keep current the information in this manual, or to notify any person
or organization of the updates. Please Note: For the most up-to-date version of this manual,
please see our web site at www.supermicro.com.
Super Micro Computer, Inc. ("Supermicro") reserves the right to make changes to the product de-
scribed in this manual at any time and without notice. This product, including software and documenta-
tion, 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 SUPERMICRO BE LIABLE FOR DIRECT, INDIRECT, SPECIAL, INCIDEN-
TAL, 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, SUPERMICRO 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. Super Micro'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 B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide 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 instruc-
tions, may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful interfer-
ence 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 to an outlet on a circuit different from that to which the
receiver is connected.
•Consult the authorized dealer or an experienced radio/TV technician for help.
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 www.dtsc.ca.gov/hazardouswaste/perchlorate”
WARNING: Handling of lead solder materials used
in this product may expose you to lead, a chemi-
cal known to the State of California to cause birth
defects and other reproductive harm.
Manual Revision 1.0
Release Date: January 5, 2017
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 © 2017 by Super Micro Computer, Inc. All rights reserved.
Printed in the United States of America

iii
Preface
This manual is written for system integrators, PC technicians and
knowledgeable PC users. It provides information for the installation and
use of the C7Z270-CG-L motherboard.
Manual Organization
Chapter 1 describes the features, specications and performance of
the motherboard, and provides detailed information on the Intel Z270
Express chipset.
Chapter 2 provides hardware installation instructions. Read this chap-
ter when installing the processor, memory modules and other hardware
components into the system.
If you encounter any problems, see Chapter 3, which describes trouble-
shooting 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 Beep Codes.
Appendix B lists software program installation instructions.
Appendix C contains UEFI BIOS Recovery instructions.
Appendix D contains an introduction and instructions regarding the Dual
Boot Block feature of this motherboard.
Preface

iv
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:
Attention! Critical information to prevent damage to the com-
ponents or injury to yourself.
Important: Important information given to ensure proper sys-
tem installation or to relay safety precautions.
Note: Additional Information given to differentiate various mod-
els or provides information for correct system setup.
Supermicro C7Z270-CG-L Motherboard User’s Manual
Checklist
Congratulations on purchasing your computer motherboard from an ac-
knowledged leader in the industry. Supermicro boards are designed with
the utmost attention to detail to provide you with the highest standards
in quality and performance.
Please check that the following items have all been included with your
motherboard. If anything listed here is damaged or missing, contact
your retailer.
The following items are included in the retail box:
• One (1) Supermicro Motherboard
• SATA cables
• One (1) I/O shield
• One (1) Quick Reference Guide
• One (1) Driver CD

v
Standardized Warning Statements
Standardized Warning Statements
The following statements are industry-standard warnings, provided to
warn the user of situations which have the potential for bodily injury.
Should you have questions or experience difculty, contact Supermicro's
Technical Support department for assistance. Only certied technicians
should attempt to install or congure components.
Read this section in its entirety before installing or conguring compo-
nents in the Supermicro chassis.
Battery Handling
Warnung
Bei Einsetzen einer falschen Batterie besteht Explosionsgefahr. Ersetzen
Sie die Batterie nur durch den gleichen oder vom Hersteller empfohlenen
Batterietyp. Entsorgen Sie die benutzten Batterien nach den Anweisungen
des Herstellers.
Warning!
There is a danger of explosion if the battery is replaced incorrectly. Re-
place the battery only with the same or equivalent type recommended
by the manufacturer. Dispose of used batteries according to the manu-
facturer's instructions
電池の取り扱い
電池交換が正しく行われなかった場合、破裂の危険性があります。 交換する電池はメー
カーが推奨する型、または同等のものを使用下さい。 使用済電池は製造元の指示に従
って処分して下さい。
警告
电池更换不当会有爆炸危险。请只使用同类电池或制造商推荐的功能相当的电池更
换原有电池。请按制造商的说明处理废旧电池。
警告
電池更換不當會有爆炸危險。請使用製造商建議之相同或功能相當的電池更換原有
電池。請按照製造商的說明指示處理廢棄舊電池。
Attention
Danger d'explosion si la pile n'est pas remplacée correctement. Ne la
remplacer que par une pile de type semblable ou équivalent, recom-
mandée par le fabricant. Jeter les piles usagées conformément aux
instructions du fabricant.

vi
¡Advertencia!
Existe peligro de explosión si la batería se reemplaza de manera incor-
recta. Reemplazar la batería exclusivamente con el mismo tipo o el
equivalente recomendado por el fabricante. Desechar las baterías gasta-
das según las instrucciones del fabricante.
Supermicro C7Z270-CG-L Motherboard User’s Manual
!הרהזא
תנכס תמייקץוציפ .הניקת אל ךרדב הפלחוהו הדימב הללוסה לש ףילחהל שי
גוסב הללוסה תא מ םאותה תרבחלמומ ןרציתצ.
תוללוסה קוליס תושמושמה עצבל שי .ןרציה תוארוה יפל




경고!
배터리가 올바르게 교체되지 않으면 폭발의 위험이 있습니다. 기존 배터리와 동일
하거나 제조사에서 권장하는 동등한 종류의 배터리로만 교체해야 합니다. 제조사
의 안내에 따라 사용된 배터리를 처리하여 주십시오.
Waarschuwing
Er is ontplofngsgevaar indien de batterij verkeerd vervangen wordt. Ver-
vang de batterij slechts met hetzelfde of een equivalent type die door de
fabrikant aanbevolen wordt. Gebruikte batterijen dienen overeenkomstig
fabrieksvoorschriften afgevoerd te worden.
Product Disposal
Warning!
Ultimate disposal of this product should be handled according to all na-
tional laws and regulations.

vii
Standardized Warning Statements
製品の廃棄
この製品を廃棄処分する場合、国の関係する全ての法律・条例に従い処理する必要が
ありま す。
警告
本产品的废弃处理应根据所有国家的法律和规章进行。
警告
本產品的廢棄處理應根據所有國家的法律和規章進行。
Warnung
Die Entsorgung dieses Produkts sollte gemäß allen Bestimmungen und
Gesetzen des Landes erfolgen.
¡Advertencia!
Al deshacerse por completo de este producto debe seguir todas las leyes
y reglamentos nacionales.
Attention
La mise au rebut ou le recyclage de ce produit sont généralement soumis
à des lois et/ou directives de respect de l'environnement. Renseignez-
vous auprès de l'organisme compétent.
רצומה קוליס
!הרהזא
ו תויחנהל םאתהב תויהל בייח הז רצומ לש יפוס קוליס.הנידמה יקוח
Waarschuwing
De uiteindelijke verwijdering van dit product dient te geschieden in over-
eenstemming met alle nationale wetten en reglementen.
 
경고!
이 제품은 해당 국가의 관련 법규 및 규정에 따라 폐기되어야 합니다.

viii
Supermicro C7Z270-CG-L Motherboard User’s Manual
Contacting Supermicro
Headquarters
Address: Super Micro Computer, Inc.
980 Rock Ave.
San Jose, CA 95131 U.S.A.
Tel: [phone]
Fax: [phone]
Email: [e-mail] (General Information)
[email protected] (Technical Support)
Web Site: www.supermicro.com
Europe
Address: Super Micro Computer B.V.
Het Sterrenbeeld 28, 5215 ML
's-Hertogenbosch, The Netherlands
Tel: [phone]
Fax: [phone]
Email: [email protected] (General Information)
[email protected] (Technical Support)
[email protected] (Customer Support)
Web Site: www.supermicro.nl
Asia-Pacic
Address: Super Micro Computer, Inc.
3F, No. 150, Jian 1st Rd.
Zhonghe Dist., New Taipei City 235
Taiwan (R.O.C)
Tel: [phone]
Fax: [phone]
Email: [email protected]
Web Site: www.supermicro.com.tw

ix
Contacting Supermicro
Where to Find More Information
For your system to work properly, please follow the links below to
download all necessary drivers/utilities and the user's manual for your
motherboard.
Supermicro product manuals: http://www.supermicro.com/support/
manuals/
Product Drivers and utilities: ftp://ftp.supermicro.com/
If you have any questions, please contact our support team at support@
supermicro.com.

x
Table of Contents
Preface
Manual Organization ..........................................................................iii
Checklist ..........................................................................................iv
Conventions Used in the Manual .........................................................iv
Standardized Warning Statements ....................................................... v
Battery Handling....................................................................... v
Product Disposal.......................................................................vi
Contacting Supermicro..................................................................... viii
Where to Find More Information..........................................................ix
Chapter 1 Introduction
1-1 Overview .............................................................................. 1-1
About this Motherboard .......................................................... 1-1
1-2 Chipset Overview .................................................................. 1-1
Intel Z270 Express Chipset Features ........................................ 1-1
1-3 Motherboard Features............................................................. 1-2
1-4 Special Features .................................................................... 1-4
Recovery from AC Power Loss ................................................. 1-4
1-5 PC Health Monitoring.............................................................. 1-4
Fan Status Monitor and Control .............................................. 1-4
Environmental Temperature Control ......................................... 1-4
System Resource Alert ........................................................... 1-5
1-6 ACPI Features ....................................................................... 1-5
Slow Blinking LED for Suspend-State Indicator.......................... 1-5
1-7 Power Supply ........................................................................ 1-6
1-8 Super I/O ............................................................................. 1-6
Chapter 2 Installation
2-1 Installation Components and Tools Needed ............................... 2-1
2-2 Static-Sensitive Devices.......................................................... 2-2
Precautions ........................................................................... 2-2
Unpacking............................................................................. 2-2
2-3 Processor and Heatsink Installation.......................................... 2-3
Installing the LGA1151 Processor ........................................... 2-3
Installing an Active CPU Heatsink with Fan ............................... 2-6
Removing the Heatsink........................................................... 2-8
2-4 Installing DDR4 Memory ......................................................... 2-9
DIMM Installation .................................................................. 2-9
Supermicro C7Z270-CG-L Motherboard User’s Manual

xi
Table of Contents
Removing Memory Modules..................................................... 2-9
Memory Support.................................................................. 2-10
Memory Population Guidelines ............................................... 2-11
2-5 Motherboard Installation ....................................................... 2-12
Tools Needed....................................................................... 2-12
Location of Mounting Holes ................................................... 2-12
Installing the Motherboard .................................................... 2-13
2-6 Connectors/IO Ports............................................................. 2-14
Back I/O Panel .................................................................... 2-14
Universal Serial Bus (USB) ................................................ 2-15
Ethernet Port................................................................... 2-16
Back Panel High Denition Audio (HD Audio) ...................... 2-16
ATX PS/2 Keyboard/Mouse Ports ........................................ 2-17
VESA® DisplayPort™ ........................................................ 2-17
HDMI Port ....................................................................... 2-17
DVI Port ......................................................................... 2-17
Front Control Panel .............................................................. 2-18
Front Control Panel Pin Denitions ......................................... 2-19
Power LED ..................................................................... 2-19
HDD LED ........................................................................ 2-19
NIC1 (LAN) ..................................................................... 2-19
Overheat (OH)/Fan Fail ..................................................... 2-19
Reset Button .................................................................. 2-20
Power Button .................................................................. 2-20
2-7 Connecting Cables ............................................................... 2-21
ATX Main PWR & CPU PWR Connectors (JPW1 & JPW2) ........ 2-21
Fan Headers (Fan 1 ~ Fan 5) ............................................ 2-22
Chassis Intrusion (JL1) .................................................... 2-22
Speaker (JD1) ................................................................. 2-23
Thermistor Header (TH1) .................................................. 2-23
Serial Port (COM1) ........................................................... 2-24
DOM PWR Connector (JSD1).............................................. 2-25
SPDIF OUT (JSPDIF_OUT) ................................................. 2-25
Standby Power Header (STBY1) ......................................... 2-26
PCI-E M.2 Connector (PCI-E M.2)....................................... 2-26
Front Panel Audio Header (AUDIO FP) ................................ 2-27
TPM Header/Port 80 ......................................................... 2-27
2-8 Jumper Settings .................................................................. 2-28
Explanation of Jumpers ........................................................ 2-28

xii
Manufacturing Mode (JPME2)............................................. 2-28
Clear CMOS & JBT1 .......................................................... 2-29
PCI-E Slot SMB Enable (I2C1/I2C2).................................... 2-29
Watch Dog Timer Enable/Disable ....................................... 2-30
BIOS Recovery Jumper (JBR1)........................................... 2-30
Power Button (POWER BUTTON) ........................................ 2-31
Reset Button ................................................................... 2-31
USB Wake Up (JPUSB1) .................................................... 2-31
2-9 Onboard Indicators ............................................................. 2-32
LAN LEDs ........................................................................ 2-32
Onboard Power LED (LED1) .............................................. 2-32
Status Display (LED4) ..................................................... 2-33
2-10 Hard Drive Connections........................................................ 2-34
SATA Connections (I-SATA0~I-SATA5) ................................ 2-34
Chapter 3 Troubleshooting
3-1 Troubleshooting Procedures..................................................... 3-1
Before Power On.................................................................... 3-1
No Power.............................................................................. 3-1
No Video .............................................................................. 3-2
Memory Errors ..................................................................... 3-2
When the System is Losing the Setup Conguration .................. 3-2
3-2 Technical Support Procedures .................................................. 3-3
3-3 Frequently Asked Questions .................................................... 3-4
3-4 Battery Removal and Installation ............................................. 3-5
Battery Removal .................................................................... 3-5
Proper Battery Disposal .......................................................... 3-5
3-5 Returning Motherboard for Service........................................... 3-6
Battery Installation ................................................................ 3-6
Chapter 4 BIOS
4-1 Introduction .......................................................................... 4-1
Starting BIOS GUI Setup Utility............................................... 4-1
How To Change the Conguration Data .................................... 4-2
How to Start the Setup Utility ................................................. 4-2
4-2 System Information ............................................................... 4-3
System Date ..................................................................... 4-3
System Time ..................................................................... 4-3
4-3 CPU ..................................................................................... 4-4
CPU Conguration.................................................................. 4-5
Supermicro C7Z270-CG-L Motherboard User’s Manual

xiii
Table of Contents
SW Guard Extension (SGX) ................................................. 4-6
Select Owner EPOCH Input Type .......................................... 4-6
PRMRR Size....................................................................... 4-6
Hardware Prefetcher .......................................................... 4-6
Adjacent Cache Line Prefetch ............................................. 4-6
Intel (VMX) Virtualization Technology .................................. 4-6
Active Processor Cores........................................................ 4-7
Hyper-Threading ................................................................ 4-7
BIST................................................................................. 4-7
AES.................................................................................. 4-7
Machine Check................................................................... 4-7
MonitorMWait..................................................................... 4-7
Intel Trusted Executed Technology ....................................... 4-7
Alias Check Request ........................................................... 4-7
Reset AUX Content............................................................. 4-7
FCLK Frequency for Early Power On ..................................... 4-8
Power and Performance .......................................................... 4-8
CPU - Power Management Control ........................................... 4-8
Race to Halt (RTH) ............................................................. 4-8
Intel(R) SpeedStep(tm) ...................................................... 4-9
HDC Control ...................................................................... 4-9
C states ............................................................................ 4-9
Enhanced C-states ............................................................. 4-9
C-State Auto Demotion ....................................................... 4-9
C-State Un-demotion.......................................................... 4-9
Package C-State Demotion .................................................. 4-9
Package C-State Un-Demotion ............................................. 4-9
IO MWAIT Redirection....................................................... 4-10
Package C State Limit....................................................... 4-10
Package C State Workaround............................................. 4-10
GT-Power Management ......................................................... 4-10
CPU OverClocking ................................................................ 4-11
BCLK Clock Frequency (1/100 MHz) ................................... 4-11
FCLK Frequency for Early Power On ................................... 4-11
Active Processor Cores...................................................... 4-11
Load SMC CPU OC Setting................................................. 4-11
1-Core Ratio Limit Override............................................... 4-12
2-Core Ratio Limit Override............................................... 4-12
Boot performance mode.................................................... 4-12

xiv
Supermicro C7Z270-CG-L Motherboard User’s Manual
Intel(R) SpeedStep(tm) ................................................... 4-12
Package Power Limit MSR Lock .......................................... 4-12
Congurable TDP Boot Mode ............................................. 4-12
Congurable TDP Lock ...................................................... 4-12
CTDP BIOS control ........................................................... 4-13
Power Limit 1 Override ..................................................... 4-13
Power Limit 1 ................................................................. 4-13
Power Limit 1 Time Window .............................................. 4-13
Power Limit 2 Override ..................................................... 4-13
Power Limit 2 ................................................................. 4-13
Platform PL1 Enable ......................................................... 4-13
Platform PL2 Enable ......................................................... 4-14
Power Limit 3 Override ..................................................... 4-14
Power Limit 4 Override ..................................................... 4-14
CPU Flex Ratio Override.................................................... 4-14
CPU Flex Ratio Settings .................................................... 4-14
Core Max OC Ratio........................................................... 4-14
SA Voltage Override ......................................................... 4-14
Core Voltage Mode ........................................................... 4-14
Core Extra Turbo Voltage ................................................. 4-14
Core Voltage Offset .......................................................... 4-15
Offset Prex ................................................................... 4-15
Core PLL Voltage Offset .................................................... 4-15
Ring Max OC Ratio ........................................................... 4-15
Ring Min OC Ratio............................................................ 4-15
Uncore Voltage Offset ....................................................... 4-15
Offset Prex .................................................................... 4-15
PCH Voltage .................................................................... 4-15
CPU_IO Voltage ............................................................... 4-15
PSYS Slope ..................................................................... 4-15
PSYS Offset..................................................................... 4-16
PSYS PMax Power ............................................................ 4-16
Acoustic Noise Settings ........................................................ 4-16
Acoustic Noise Mitigation................................................... 4-16
Core/IA VR Settings ............................................................. 4-17
4-4 Memory .............................................................................. 4-20
Memory Scrambler ........................................................... 4-20
Force ColdReset ............................................................... 4-20

xv
Table of Contents
Channel A DIMM Control ................................................... 4-21
Channel B DIMM Control ................................................... 4-21
Force Single Rank ............................................................ 4-21
Mrc Fast Boot .................................................................. 4-21
Memory OverClocking........................................................... 4-21
Memory Prole ................................................................ 4-22
Memory Reference Clock................................................... 4-22
QCLK Odd Ratio ............................................................... 4-22
Memory Frequency........................................................... 4-22
Memory Voltage............................................................... 4-22
3rd Timing:......................................................................... 4-24
4-5 Advanced............................................................................ 4-29
Boot Feature ....................................................................... 4-29
Quiet Boot ...................................................................... 4-29
Bootup Num-Lock ............................................................ 4-29
Wait for "F1" If Error ........................................................ 4-29
Re-try Boot ..................................................................... 4-29
Watch Dog Function ......................................................... 4-30
Power Button Function...................................................... 4-30
AC Loss Policy Depend On................................................. 4-30
EuP Support .................................................................... 4-30
NCT6792D Super IO Conguration ......................................... 4-31
SuperIO Chip NCT6792D................................................... 4-31
Serial Port 1 Conguration ................................................ 4-31
Serial Port....................................................................... 4-31
Device Settings................................................................ 4-31
Change Settings .............................................................. 4-31
Serial Port Console Redirection .............................................. 4-32
COM 1 ............................................................................ 4-32
Console Redirection .......................................................... 4-32
System Agent (SA) Conguration........................................... 4-36
PEG Port Feature Conguration .......................................... 4-38
Program PCIe ASPM after OpROM ...................................... 4-38
Program Static Phase1 Eq ................................................. 4-38
Gen3 Root Port Preset value for each Lane
Gen3 Endpoint Preset value for each Lane
Lane 0 ~ Lane 15 ............................................................ 4-38
Gen3 Endpoint Hint Value for Each Lane ............................. 4-38

xvi
Supermicro C7Z270-CG-L Motherboard User’s Manual
Gen3 RxCTLE Control Lane................................................ 4-38
GMM Device (B0:D8:F0) ................................................... 4-40
X2APIC Opt Out............................................................... 4-40
Graphics Conguration ......................................................... 4-41
Graphics Turbo IMON Current ............................................ 4-41
Skip Scanning of External Gfx Card.................................... 4-41
Primary Display ............................................................... 4-41
Select PCIE Card.............................................................. 4-41
External Gfx Card Primary Display Conguration.................. 4-41
Internal Graphics ............................................................ 4-42
GTT Size ......................................................................... 4-42
Aperture Size .................................................................. 4-42
DVMT Pre-Allocated .......................................................... 4-42
DVMT Total Gfx Mem ........................................................ 4-42
Gfx Low Power Mode ........................................................ 4-42
VDD Enable..................................................................... 4-42
HDCP Support ................................................................. 4-43
Algorithm........................................................................ 4-43
PM Support ..................................................................... 4-43
PAVP Enable .................................................................... 4-43
Cdynmax Clamping Enable ................................................ 4-43
Graphics Clock Frequency ................................................. 4-43
GT-UnSliced VR Settings ....................................................... 4-44
GT-Sliced VR Settings........................................................... 4-47
PCH-IO Conguration ........................................................... 4-49
SATA and RST Conguration.................................................. 4-50
SATA Controllers .............................................................. 4-50
SATA Mode Selection ........................................................ 4-50
SATA Controller Speed ...................................................... 4-50
SATA Frozen .................................................................... 4-51
Serial ATA Port................................................................. 4-51
Hot Plug ......................................................................... 4-51
Congured as eSATA ........................................................ 4-51
Spin Up Device ................................................................ 4-51
SATA Device Type ............................................................ 4-51
PCH FW Conguration .......................................................... 4-52
ME FW Image Re-Flash..................................................... 4-52
Thunderbolt(TM) Conguration .............................................. 4-53

xvii
Thunderbolt (TM) Support ................................................. 4-53
USB Conguration................................................................ 4-54
Legacy USB Support......................................................... 4-54
XHCI Hand-Off................................................................. 4-54
PCIe/PCI/PnP Conguration................................................... 4-56
Trusted Computing............................................................... 4-58
Device Select................................................................... 4-58
Security.............................................................................. 4-59
Administrator Password..................................................... 4-59
User Password ................................................................. 4-59
Secure Boot ........................................................................ 4-60
Attempt Secure Boot ........................................................ 4-60
Secure Boot Mode ............................................................ 4-60
CSM Support ................................................................... 4-60
Key Management ................................................................ 4-61
Provision Factory Default Keys........................................... 4-61
Install Factory Default Keys............................................... 4-61
Enroll E Image ............................................................... 4-61
Save All Secure Boot Variables .......................................... 4-61
Platform Key (PK) ............................................................ 4-61
Delete Key Exchange Key.................................................. 4-62
Key Exchange Keys .......................................................... 4-62
Append Key Exchange Key ................................................ 4-62
Delete Authorized Signature .............................................. 4-62
Authorized Signatures....................................................... 4-62
Append Authorized Signature............................................. 4-63
Delete Forbidden Signature ............................................... 4-63
Forbidden Signatures........................................................ 4-63
Append Forbidden Signature.............................................. 4-63
Delete Authorized TimeStamps .......................................... 4-63
Authorized TimeStamps .................................................... 4-63
Append Authorized TimeStamp .......................................... 4-64
Delete OSRecovery Signatures........................................... 4-64
OsRecovery Signatures ..................................................... 4-64
Append OsRecovery Signature ........................................... 4-64
4-6 Thermal & Fan..................................................................... 4-65
Fan Control ......................................................................... 4-66
Fan Speed Control Mode ................................................... 4-66
4-7 Save & Exit......................................................................... 4-67
Table of Contents

xviii
Supermicro C7Z270-CG-L Motherboard User’s Manual
Boot mode select ............................................................. 4-67
FIXED BOOT ORDER Priorities............................................ 4-67
Legacy Boot Option #1~#8............................................... 4-67
USB Key Drive BBS Priorities ............................................. 4-67
NETWORK Drive BBS Priorities........................................... 4-67
Boot Override .................................................................. 4-68
SMI USB DISK 1100......................................................... 4-68
Launch EFI Shell from lesystem device ............................. 4-68
4-8 BIOS Update ....................................................................... 4-70
Start Update ................................................................... 4-70
Appendix A BIOS Error Beep Codes
A-1 BIOS Error Beep Codes .......................................................... A-1
Appendix B Software Installation Instructions
B-1 Installing Drivers ................................................................... B-1
B-2 Conguring SuperDoctor®5 ................................................... B-2
Appendix C UEFI BIOS Recovery Instructions
C-1 An Overview to the UEFI BIOS ................................................ C-1
C-2 How to Recover the UEFI BIOS Image (-the Main BIOS Block) .... C-1
C-3 To Recover the Main BIOS Block Using a USB-Attached Device.... C-2
Appendix D Dual Boot Block
D-1 Introduction ..........................................................................D-1
BIOS Boot Block ....................................................................D-1
BIOS Boot Block Corruption Occurrence ..................................D-1
D-2 Steps to Reboot the System by switch JBR1 .............................D-2

Chapter 1: Introduction
1-1
Chapter 1
Introduction
1-1 Overview
About this Motherboard
The C7Z270-CG-L motherboard supports a single 6th and 7th Generation
Intel® CoreTM i7/i5/i3, Pentium®/Celeron® processor in an LGA 1151
(H4) socket. With the Intel® Z270 Express chipset built in, the C7Z270-
CG-L motherboard offers substantial system performance and storage
capability for overclocking platforms in a sleek package. Please refer to
our website (http://www.supermicro.com/products/) for processor and
memory support updates.
1-2 Chipset Overview
Intel Z270 Express Chipset Features
• Direct Media Interface (up 10 Gb/s transfer, Full Duplex)
• Intel® Matrix Storage Technology and Intel Rapid Storage Technology
• Intel Optane technology support
• Intel I/O Virtualization (VT-d) Support
• Intel Trusted Execution Technology Support
• PCI Express 3.0 Interface (up to 8 GT/s)
• SATA Controller (up to 6Gb/sec)
• Advanced Host Controller Interface (AHCI)

1-2
Supermicro C7Z270-CG-L Motherboard User’s Manual
1-3 Motherboard Features
CPU Single 6th and 7th Generation Intel® CoreTM i7/i5/
i3, Pentium®/Celeron® processor in an LGA1151 type
socket with up to 120Watt TDP
Memory Four (4) slots support up to 64GB of unbuffered, non-
ECC, 2133MHz to 2800+MHz(OC) DDR4 memory*
Dual-channel memory
DIMM sizes
UDIMM 4GB, 8GB, 16GB
Chipset Intel® Z270 Express
Expansion Slots Three (3) PCH PCI-E 3.0 X1 slot
One (1) PCH PCI-E 3.0 X4 slot
Two (2) CPU PCI-E 3.0 X16 slots (X16/NA or X8/X8)
Two (2) NVMe PCI-E X4 M.2 slots
Network
Connections
One (1) Gigabit Ethernet Controller
One (1) RJ-45 rear I/O panel connector with Link and
Activity LEDs
I/O Devices Hard Drive Connections
SATA 3.0 (6Gb/s) Six (6) I-SATA 0~5, via Intel Z270
RAID 0, 1, 5, 10
USB Devices
Four (4) USB 3.0, two (2) USB 3.1, and two (2) USB
2.0 ports on the rear I/O panel
Four (4) Front-Accessible USB 2.0 ports on two head-
ers and Two (2) Front Accessible USB 3.0 ports on one
header.
Graphics
One (1) VESA DisplayPort
One (1) DVI-D Port
One (1) HDMI 1.4 Port
Supports nVidia®SLi Technology via onboard PCI-E
3.0 x16 solts
Keyboard/Mouse
One shared PS/2 Keyboard/Mouse port on the I/O
backpanel
Other I/O Ports
One (1) TPM 2.0 Header
One (1) Serial Port header (COM1)