Asus KRPA-U16 User manual

KRPA-U16
User Guide

ii
E16152
Revised Edition V2
February 2020
Copyright © 2020 ASUSTeK COMPUTER INC. All Rights Reserved.
No part of this manual, including the products and software described in it, may be reproduced, transmitted,
transcribed, stored in a retrieval system, or translated into any language in any form or by any means,
except documentation kept by the purchaser for backup purposes, without the express written permission
of ASUSTeK COMPUTER INC. (“ASUS”).
Product warranty or service will not be extended if: (1) the product is repaired, modied or altered, unless
such repair, modication of alteration is authorized in writing by ASUS; or (2) the serial number of the
product is defaced or missing.
ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS
DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS,
LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE),
EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY
DEFECT OR ERROR IN THIS MANUAL OR PRODUCT.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR
INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE,
AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO
RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS
MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.
Products and corporate names appearing in this manual may or may not be registered trademarks or
copyrights of their respective companies, and are used only for identication or explanation and to the
owners’ benet, without intent to infringe.

iii
Contents
Safety information...................................................................................................... vi
About this guide........................................................................................................ vii
KRPA-U16 specifications summary ......................................................................... ix
Chapter 1: Product Introduction
1.1 Welcome! ....................................................................................................1-2
1.2 Package contents ...................................................................................... 1-2
1.3 Serial number label....................................................................................1-2
Chapter 2: Hardware Information
2.1 Before you proceed ...................................................................................2-2
2.2 Motherboard overview............................................................................... 2-3
2.2.1 Placement direction..................................................................... 2-3
2.2.2 Screw holes................................................................................. 2-3
2.2.3 Motherboard layout ..................................................................... 2-4
2.3 Central Processing Unit (CPU) .................................................................2-6
2.3.1 Installing the CPU ....................................................................... 2-6
2.4 System memory .......................................................................................2-10
2.4.1 Overview ................................................................................... 2-10
2.4.2 Memory Congurations............................................................. 2-10
2.4.3 Installing a DIMM on a single clip DIMM socket........................ 2-11
2.5 Expansion slots........................................................................................2-12
2.5.1 Installing an expansion card......................................................2-12
2.5.2 Conguring an expansion card ................................................. 2-12
2.5.3 Interrupt assignments................................................................ 2-13
2.6 Jumpers ....................................................................................................2-15
2.7 Onboard LEDs..........................................................................................2-19
2.8 Connectors ...............................................................................................2-22
2.8.1 Rear panel connectors.............................................................. 2-22
2.8.2 Internal connectors.................................................................... 2-23
Chapter 3: Powering Up
3.1 Starting up for the first time...................................................................... 3-2
3.2 Powering off the computer........................................................................3-3
3.2.1 Using the OS shut down function................................................ 3-3
3.2.2 Using the dual function power switch.......................................... 3-3

iv
Contents
Chapter 4: BIOS Setup
4.1 Managing and updating your BIOS ..........................................................4-2
4.1.1 ASUS CrashFree BIOS 3 utility................................................... 4-2
4.1.2 ASUS EZ Flash Utility ................................................................. 4-3
4.1.3 BUPDATER utility ....................................................................... 4-4
4.2 BIOS setup program ..................................................................................4-6
4.2.1 BIOS menu screen...................................................................... 4-7
4.2.2 Menu bar..................................................................................... 4-7
4.2.3 Menu items.................................................................................. 4-8
4.2.4 Submenu items ........................................................................... 4-8
4.2.5 Navigation keys........................................................................... 4-8
4.2.6 General help................................................................................ 4-8
4.2.7 Conguration elds ..................................................................... 4-8
4.2.8 Pop-up window............................................................................ 4-8
4.2.9 Scroll bar..................................................................................... 4-8
4.3 Main menu ..................................................................................................4-9
4.3.1 System Date [Day xx/xx/xxxx]..................................................... 4-9
4.3.2 System Time [xx:xx:xx] ............................................................... 4-9
4.4 Performance Tuning menu......................................................................4-10
4.5 Advanced menu .......................................................................................4-12
4.5.1 Trusted Computing.................................................................... 4-13
4.5.2 PSP Firmware Versions............................................................ 4-13
4.5.3 APM Conguration.................................................................... 4-14
4.5.4 Onboard LAN Conguration...................................................... 4-15
4.5.5 Serial Port Console Redirection................................................ 4-16
4.5.6 CPU Conguration .................................................................... 4-19
4.5.7 PCI Subsystem Settings ........................................................... 4-19
4.5.8 USB Conguration .................................................................... 4-20
4.5.9 CSM Conguration.................................................................... 4-21
4.5.10 NVMe Conguration.................................................................. 4-22
4.5.11 SATA Conguration .................................................................. 4-23
4.5.12 Tls Auth Conguration............................................................... 4-23
4.5.13 Network Stack Conguration..................................................... 4-24
4.5.14 AMD Mem Conguration Status................................................ 4-25
4.5.15 iSCSI Conguration................................................................... 4-25
4.6 Chipset menu ...........................................................................................4-26

v
Contents
4.7 Security menu ..........................................................................................4-27
4.8 Boot menu ................................................................................................4-31
4.9 Tool menu.................................................................................................4-32
4.10 Save & Exit menu.....................................................................................4-32
4.11 AMD CBS menu........................................................................................ 4-34
4.11.1 CPU Common Options.............................................................. 4-34
4.11.2 DF Common Options ................................................................ 4-35
4.11.3 UMC Common Option............................................................... 4-36
4.11.4 NBIO Common Options ............................................................ 4-39
4.11.5 FCH Common Options.............................................................. 4-42
4.11.6 NTB Common Options.............................................................. 4-43
4.12 Event Logs menu .....................................................................................4-44
4.12.1 Change Smbios Event Log Settings ......................................... 4-44
4.12.2 View Smbios Event Log ............................................................ 4-44
4.13 Server Mgmt menu...................................................................................4-45
Chapter 5: Driver Installation
5.1 Running the Support DVD......................................................................... 5-2
Appendix
KRPA-U16 block diagram....................................................................................... A-2
Q-Code table............................................................................................................ A-3
Notices .................................................................................................................... A-6
Simplified EU Declaration of Conformity.............................................................. A-8
ASUS contact information...................................................................................... A-9

vi
Safety information
Electrical safety
• To prevent electrical shock hazard, disconnect the power cable from the electrical outlet
before relocating the system.
• When adding or removing devices to or from the system, ensure that the power cables
for the devices are unplugged before the signal cables are connected. If possible,
disconnect all power cables from the existing system before you add a device.
• Before connecting or removing signal cables from the motherboard, ensure that all power
cables are unplugged.
• Seek professional assistance before using an adapter or extension cord. These devices
could interrupt the grounding circuit.
• Make sure that your power supply is set to the correct voltage in your area. If you are
not sure about the voltage of the electrical outlet you are using, contact your local power
company.
• If the power supply is broken, do not try to x it by yourself. Contact a qualied service
technician or your retailer.
Operation safety
• Before installing the motherboard and adding devices on it, carefully read all the manuals
that came with the package.
• Before using the product, make sure all cables are correctly connected and the power
cables are not damaged. If you detect any damage, contact your dealer immediately.
• To avoid short circuits, keep paper clips, screws, and staples away from connectors,
slots, sockets and circuitry.
• Avoid dust, humidity, and temperature extremes. Do not place the product in any area
where it may become wet.
• Place the product on a stable surface.
• If you encounter technical problems with the product, contact a qualied service
technician or your retailer.
DO NOT throw the motherboard in municipal waste. This product has been designed to
enable proper reuse of parts and recycling. This symbol of the crossed out wheeled bin
indicates that the product (electrical and electronic equipment) should not be placed in
municipal waste. Check local regulations for disposal of electronic products.
DO NOT throw the mercury-containing button cell battery in municipal waste. This symbol
of the crossed out wheeled bin indicates that the battery should not be placed in municipal
waste.

vii
About this guide
This user guide contains the information you need when installing and conguring the
motherboard.
How this guide is organized
This user guide contains the following parts:
• Chapter 1: Product Introduction
This chapter describes the features of the motherboard and the new technologies it
supports.
• Chapter 2: Hardware Information
This chapter lists the hardware setup procedures that you have to perform when
installing system components. It includes description of the switches, jumpers, and
connectors on the motherboard.
• Chapter 3: Powering Up
This chapter describes the power up sequence and ways of shutting down the system.
• Chapter 4: BIOS Setup
This chapter tells how to change system settings through the BIOS Setup menus.
Detailed descriptions of the BIOS parameters are also provided.
• Chapter 5: Driver Installation
This chapter provides instructions for installing the necessary drivers for different
system components.
• Appendix: Reference Information
This appendix includes additional information that you may refer to when conguring
the motherboard.
Where to find more information
Refer to the following sources for additional information and for product and software updates.
1. ASUS websites
The ASUS website provides updated information on ASUS hardware and software
products. Refer to the ASUS contact information.
2. Optional documentation
Your product package may include optional documentation, such as warranty yers,
that may have been added by your dealer. These documents are not part of the
standard package.

viii
Conventions used in this guide
To ensure that you perform certain tasks properly, take note of the following symbols used
throughout this manual.
DANGER/WARNING: Information to prevent injury to yourself when trying to
complete a task.
CAUTION: Information to prevent damage to the components when trying to
complete a task.
IMPORTANT: Instructions that you MUST follow to complete a task.
NOTE: Tips and additional information to help you complete a task.
Typography
Bold text Indicates a menu or an item to select.
Italics Used to emphasize a word or a phrase.
<Key> Keys enclosed in the less-than and greater-than sign means
that you must press the enclosed key.
Example: <Enter> means that you must press the Enter or
Return key.
<Key1> + <Key2> + <Key3> If you must press two or more keys simultaneously, the key
names are linked with a plus sign (+).
Example: <Ctrl> + <Alt> + <Del>
Command Means that you must type the command exactly as shown,
then supply the required item or value enclosed in brackets.
Example: At DOS prompt, type the command line:
format A:/S

ix
KRPA-U16 specifications summary
Model Name KRPA-U16
Processor Support
1 x SocketSP3
AMD EPYC™ 7002 Generation
* Refer to www.asus.com for CPU support list.
Form Factor EEB, 12” x 13” (305mm x 330mm)
Memory
Total Slots 16 (8-channel)
Memory Type DDR4 3200/2933/2666 RDIMM/LR-DIMM/LR-DIMM3DS
* Refer to www.asus.com for the latest memory AVL update.
Memory Size
32GB, 16GB, 8GB(RDIMM)
64GB, 32GB (LRDIMM)
128GB, 64GB (LRDIMM3DS)
* Refer to www.asus.com for the latest memory AVL update.
Expansion
Slots
Total PCI/PCI-X/
PCI-E Slots 5+1
Slot Location 1 PCIe 3.0 x16 (x16 link) FL
Slot Location 2 -
Slot Location 3 PCIe 3.0 x16 (x16 link, if Slot3 is occupied switch to x8 link) FL
Slot Location 4 PCIe 3.0x 8 (x8 link q-switch from slot-2) HL
Slot Location 5 PCIe 4.0 x8 (x8 link) HL
Slot Location 6 PCIe 4.0 x24 (x16 link + x8 link) HL
Slot Location 7 -
Additional Slot 1 OCP 2.0 Mezzanine card (x16 link)
Additional Slot 2 -
Storage
SATA Controller
CPU Integrated
4 x SATA3 6Gb/s ports
12 x SATA3 6Gb/s ports by 3 Mini-SAS HD connectors
1 x M.2 connector (2242/2260/2280/22110) both SATA &
PCIe mode
NVMe Controller 6 x Oculink ports (Gen3 x4 link)
SAS Controller
Optional Kits:
- ASUS PIKE II 3108II 8i-240 PD 2G SAS HW RAID card
Support SAS 12Gbps
Networking LAN 1 x Dual Port Intel I350-AM2 Gigabit LAN Controller
1 x Management Port
Graphic VGA Aspeed AST2500 64MB
(continued on the next page)

x
KRPA-U16 specifications summary
Model Name KRPA-U16
Onboard I/O Connectors
1 x USB 3.0 header (for front panel)
1 x USB 3.0 port (Type-A vertical)
1 x Micro SD Card slot
1 x Serial port header
1 x VGA header (for front panel)
8 x FAN header (4-pin)
1 x TPM header
1 x Chassis Intruder header (2-pin)
Rear I/O Connectors
2 x USB 3.0 ports
1 x VGA port
2 x RJ-45 GbE LAN ports
1 x RJ-45 Management port
Management
Solution
Software ASUS Control Center (Classic)
Out of Band
Remote
Management
On-Board ASMB9-iKVM for KVM-over-IP
Weight Net Weight : 1.4 Kg
Gross Weight : 2.5 Kg
Environment
Operating temperature: 10°C ~ 35°C
Non operating temperature: -40°C ~ 70°C
Non operating humidity: 20% ~ 90% (Non condensing)
* Specifications are subject to change without notice.

1
Product Introduction
This chapter describes the motherboard features and the new
technologies it supports.
Chapter 1: Product Introduction

1-2 Chapter 1: Product Introduction
1.3 Serial number label
Before requesting support from the ASUS Technical Support team, you must take note of
the motherboard's serial number containing 12 characters xxS2xxxxxxxx shown in the gure
below. With the correct serial number of the product, ASUS Technical Support team members
can then offer a quicker and satisfying solution to your problems.
xxS2xxxxxxxx
KRPA-U16 Made
in
China
合格
1.1 Welcome!
Congratulations and thank you for buying an ASUS®KRPA-U16 motherboard!
The motherboard delivers a host of new features and latest technologies, making it another
standout in the long line of ASUS quality motherboards!
Before you start installing the motherboard and hardware devices on it, check the items in
your package with the list below.
1.2 Package contents
Check your motherboard package for the following items.
If any of the above items is damaged or missing, contact your retailer.
Standard Gift Box Pack Standard Bulk Pack
I/O Shield 1 10
SATA 6Gbps Cable 4 40
Support DVD 1 10
Motherboard 1 10

2
Hardware Information
This chapter lists the hardware setup procedures that you have
to perform when installing system components. It includes
description of the jumpers and connectors on the motherboard.
Chapter 2: Hardware Information

2-2 Chapter 2: Hardware Information
2.1 Before you proceed
Take note of the following precautions before you install any motherboard component or
change any motherboard settings.
• Unplug the power cord from the wall socket before touching any component.
• Use a grounded wrist strap or touch a safely grounded object or a metal object, such
as the power supply case, before handling components to avoid damaging them due
to static electricity.
• Hold components by the edges to avoid touching the ICs on them.
• Whenever you uninstall any component, place it on a grounded antistatic pad or in the
bag that came with the component.
• Before you install or remove any component, ensure that the power supply is switched
off or the power cord is detached from the power supply. Failure to do so may cause
severe damage to the motherboard, peripherals, and/or components.

2-3
KRPA-U16
2.2 Motherboard overview
Before you install the motherboard, study the conguration of your chassis to ensure that the
motherboard ts into it.
To optimize the features of your motherboard, we highly recommend that you install it in an
ATX 2.2 compliant chassis.
2.2.1 Placement direction
When installing the motherboard, ensure that you place it into the chassis in the correct
orientation. The edge with external ports goes to the rear part of the chassis as indicated in
the image below.
2.2.2 Screw holes
Place nine (9) screws into the holes indicated by circles to secure the motherboard to the
chassis.
DO NOT overtighten the screws! Doing so can damage the motherboard.
Ensure to unplug the chassis power cord before installing or removing the motherboard.
Failure to do so can cause you physical injury and damage motherboard components!
Place this side towards
the rear of the chassis

2-4 Chapter 2: Hardware Information
2.2.3 Motherboard layout

2-5
KRPA-U16
Layout contents
Internal connectors / Sockets / Jumpers / LEDs Page
1. LAN controller settings (3-pin LAN_SW1-2) 2-16
2. LANNCSI setting (3-pin LANNCSI_SEL1) 2-18
3. Micro SD card slot (MSD1) 2-32
4. ATX power connectors (24-pin EATXPWR1, 8-pin EATX12V1) 2-26
5. Smart Ride Through (SmaRT) setting (3-pin SMART_PSU1) 2-18
6. USB 3.0 connector (20-1 pin USB3_34; 4-pin Type-A USB3_5) 2-24
7. Power Supply SMBus connector (5-pin PSUSMB1) 2-23
8. VPP_I2C1 connector (10-1 pin VPP_I2C1) 2-24
9. Front and rear fan connectors (4-pin FRNT_FAN1-6, REAR_FAN1-2) 2-25
10. CPU socket 2-6
11. DDR4 DIMM sockets 2-10
12. Serial General Purpose Input/Output connector (6-1 pin SATA_SGPIO1) 2-33
13. Serial ATA connectors (7-pin SATA1-4) 2-23
14. Mini-SAS HD connectors (ISATA1-3) 2-33
15. OCuLink connectors (MPCIE_HD1-6) 2-30
16. M.2 (NGFF) connectors (NGFF1) 2-31
17. System panel connector (20-1 pin PANEL1) 2-27
18. Auxiliary panel connector (20-2 pin AUX_PANEL1,
20-pin AUX_PANEL2) 2-28
19. Hard disk activity LED connector (4-pin HDLED1) 2-29
20. LAN Activity LED connector (5-1 pin LAN34_LED1) 2-25
21. Chassis Intrusion connectors (2-pin INTRUSION) 2-30
22. Serial port connector (10-1 pin COM1) 2-34
23. Q-Code LEDs 2-21
24. Clear RTC RAM (3-pin CLRTC1) 2-15
25. OCP LAN Activity LED connector (4-1 pin OCP_LED1) 2-32
26. Mezzanine PCIE card connectors (MEZZPCIE1-2) 2-31
27. VGA controller setting (3-pin VGA_SW1) 2-16
28. BMC Setting (3-pin BMC_EN1) 2-17
29. VGA connector (10-1 pin VGA_HDR1) 2-29
30. Trusted Platform Module connector (14-1 pin TPM1) 2-26
31. DMLAN setting (3-pin DM_IP_EN1) 2-17

2-6 Chapter 2: Hardware Information
2.3.1 Installing the CPU
To install the CPU:
1. Locate the CPU socket on the motherboard.
2.3 Central Processing Unit (CPU)
The motherboard comes with a surface mount Socket SP3 designed for the AMD EPYC™
7002 Series.
• Upon purchase of the motherboard, ensure that the PnP cap is on the socket and
the socket contacts are not bent. Contact your retailer immediately if the PnP cap
is missing, or if you see any damage to the PnP cap/socket contacts/motherboard
components. ASUS will shoulder the cost of repair only if the damage is shipment/
transit-related.
• Keep the cap after installing the motherboard. ASUS will process Return Merchandise
Authorization (RMA) requests only if the motherboard comes with the cap on the
Socket SP3.
• The product warranty does not cover damage to the socket contacts resulting from
incorrect CPU installation/removal, or misplacement/loss/incorrect removal of the PnP
cap.

2-7
KRPA-U16
2. Loosen each screw one by one in the
sequence shown on the socket to open
the load plate.
3. Slightly lift open the rail frame.
4. Slide the external cap out of the rail
frame.
External cap
Load plate
Rail frame
Rail frame
External cap
PnP cap

2-8 Chapter 2: Hardware Information
5. Slide the carrier frame with CPU into the
rail frame, then remove the PnP cap.
The carrier frame with CPU ts in only
one correct orientation. DO NOT force
the carrier frame with CPU into the
rail frame.
6. Gently push the rail frame just enough
to let it sit on top of the CPU socket.
7. Close the load plate just enough to let
it sit on top of the CPU, then secure
each screw one by one in the sequence
shown on the socket to completely
secure the load plate.
The load plate screws are T20
models. A torque value of 14.0±1.0
inch-lbf is recommended.
Rail frame
Carrier frame
with CPU
PnP cap
Carrier frame
with CPU