ASROCK TRX40 TAICHI User manual

Version 1.0
Published October 2019
Copyright©2019 ASRock INC. All rights reserved.
Copyright Notice:
No part of this documentation may be reproduced, transcribed, transmitted, or
translated in any language, in any form or by any means, except duplication of
documentation by the purchaser for backup purpose, without written consent of
ASRock Inc.
Products and corporate names appearing in this documentation 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.
Disclaimer:
Specications and information contained in this documentation are furnished for
informational use only and subject to change without notice, and should not be
constructed as a commitment by ASRock. ASRock assumes no responsibility for
any errors or omissions that may appear in this documentation.
With respect to the contents of this documentation, ASRock does not provide
warranty of any kind, either expressed or implied, including but not limited to
the implied warranties or conditions of merchantability or tness for a particular
purpose.
In no event shall ASRock, its directors, ocers, employees, or agents be liable for
any indirect, special, incidental, or consequential damages (including damages for
loss of prots, loss of business, loss of data, interruption of business and the like),
even if ASRock has been advised of the possibility of such damages arising from any
defect or error in the documentation or product.
is device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
CALIFORNIA, USA ONLY
e Lithium battery adopted on this motherboard contains Perchlorate, a toxic substance
controlled in Perchlorate Best Management Practices (BMP) regulations passed by the
California Legislature. When you discard the Lithium battery in California, USA, please
follow the related regulations in advance.
“Perchlorate Material-special handling may apply, see www.dtsc.ca.gov/hazardouswaste/
perchlorate”
ASRock Website: http://www.asrock.com

AUSTRALIA ONLY
Our goods come with guarantees that cannot be excluded under the Australian Consumer
Law. You are entitled to a replacement or refund for a major failure and compensation for
any other reasonably foreseeable loss or damage caused by our goods. You are also entitled
to have the goods repaired or replaced if the goods fail to be of acceptable quality and the
failure does not amount to a major failure. If you require assistance please call ASRock Tel
: [phone] ext.123 (Standard International call charges apply)
Manufactured under license under U.S. Patent Nos: 5,956,674; 5,974,380; 6,487,535;
7,003,467 & other U.S. and worldwide patents issued & pending. DTS, the Symbol, &
DTS and the Symbol together is a registered trademark & DTS Connect, DTS Interactive,
DTS Neo:PC are trademarks of DTS, Inc. Product includes soware.
© DTS, Inc., All Rights Reserved.

CE Warning
is device complies with directive 2014/53/EU issued by the Commision of the European
Community.
is equipment complies with EU radiation exposure limits set forth for an uncontrolled
environment.
is equipment should be installed and operated with minimum distance 20cm between
the radiator & your body.
Operations in the 5.15-5.35GHz band are restricted to indoor usage only.
Radio transmit power per transceiver type
Function Frequency Maximum Output Power (EIRP)
WiFi
2400-2483.5 MHz 18.5 + / -1.5 dbm
5150-5250 MHz 21.5 + / -1.5 dbm
5250-5350 MHz 18.5 + / -1.5 dbm (no TPC)
21.5 + / -1.5 dbm (TPC)
5470-5725 MHz 25.5 + / -1.5 dbm (no TPC)
28.5 + / -1.5 dbm (TPC)
Bluetooth 2400-2483.5 MHz 8.5 + / -1.5 dbm

English
1
TRX40 Taichi
Purity
Sound 4
TM
DDR4_A2 (64 bit, 288-pin module)
DDR4_A1 (64 bit, 288-pin module)
DDR4_B2 (64 bit, 288-pin module)
DDR4_B1 (64 bit, 288-pin module)
ATXPWR1
PCIE1
USB 3.2 Gen2
T: USB1
B: USB2
Top:
Central/Bass
Center:
REAR SPK
Top:
LIN E IN
Center:
FRONT
Bottom:
Optical
SPDIF
Bottom:
MIC I N
PCIE3
HDLED RESET
PLED PWRBTN
PANEL1
1
1
SPK_PLED1
1
HD_AUDIO1
PCIE4
SATA3_7_8
SATA3_5_6
10
11
12
13
14
SATA3_3_4
15
17
USB_1_2
1
21
22
30
15
4
27
Dr.
Debug
USB 3. 2 Ge n1
T: USB3
B: USB 4
PS2
Keyboard
/Mouse
23
CPU_FAN1
USB 3.2 Gen2x2
USB32_TC1
M2_2
Reset Power
CPU_FAN2/WP
USB3_7_8
LAN
19
BIOS
ROM
ATX12V1
CLRC
BTN1
AMD
TRX40
CHA_FAN2
/WP
CHA_FAN3
/WP
25
RGB_LED2
RGB_LED1
1
24
ADDR_LED2
ADDR_LED1
1
1
PCIE2
M2_1
BIOS
_FB1
CLRMOS1
1
20
F_USB31_TC_1
DDR4_D1 (64 bit, 288-pin module)
DDR4_D2 (64 bit, 288-pin module)
DDR4_C1 (64 bit, 288-pin module)
DDR4_C2 (64 bit, 288-pin module)
6
ATX12V2
8
9
7
23
16
1
SATA3_2
USB3_5_6
1
18
SATA3_1
CHA_FAN1
/WP
26
28
USB 3.2 Gen1
T: USB1
B: USB2
Top:
RJ-45
(I211AT)
29
32
31
Top:
2.5GLAN
(Dragon
RTL8125AG)
LAN
M2_WIFI_1
WiFi-802.11ax
Module
Motherboard Layout

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No. Description
1 8 pin 12V Power Connector (ATX12V1)
2 2 x 288-pin DDR4 DIMM Slots (DDR4_D2, DDR4_C2)
3 2 x 288-pin DDR4 DIMM Slots (DDR4_D1 DDR4_C1)
4 2 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_B1)
5 2 x 288-pin DDR4 DIMM Slots (DDR4_A2, DDR4_B2)
6 8 pin 12V Power Connector (ATX12V2)
7 CPU Fan Connector (CPU_FAN1)
8 Addressable LED Header (ADDR_LED1)
9 RGB LED Header (RGB_LED1)
10 ATX Power Connector (ATXPWR1)
11 Front Panel Type C USB 3.2 Gen2 Header (F_USB31_TC_1)
12 USB 3.2 Gen1 Header (USB3_7_8)
13 SATA3 Connectors (SATA3_7_8)
14 SATA3 Connectors (SATA3_5_6)
15 SATA3 Connectors (SATA3_3_4)
16 USB 3.2 Gen1 Header (USB3_5_6)
17 Clear CMOS Button (CLRCBTN1)
18 System Panel Header (PANEL1)
19 Power Button (PWRBTN1)
20 Reset Button (RSTBTN1)
21 SATA3 Connector (SATA3_2)
22 SATA3 Connector (SATA3_1)
23 USB 2.0 Header (USB_1_2)
24 Power LED and Speaker Header (SPK_PLED1)
25 Chassis / Waterpump Fan Connector (CHA_FAN1/WP)
26 Chassis / Waterpump Fan Connector (CHA_FAN2/WP)
27 Addressable LED Header (ADDR_LED2)
28 RGB LED Header (RGB_LED2)
29 Clear CMOS Jumper (CLRMOS1)
30 Front Panel Audio Header (HD_AUDIO1)
31 Chassis / Waterpump Fan Connector (CHA_FAN3/WP)
32 CPU / Waterpump Fan Connector (CPU_FAN2/WP)

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TRX40 Taichi
I/O Panel
No. Description No. Description
1 LAN RJ-45 Port (Intel® I211AT)* 8 Microphone (Pink)
2 PS/2 Mouse/Keyboard Port 9 Optical SPDIF Out Port
3 2.5G LAN RJ-45 Port 10 USB 3.2 Gen2 Ports (USB31_1_2)
(Dragon RTL8125AG)** 11 USB 3.2 Gen2x2 Type-C Port
4Central (Orange) 12 USB 3.2 Gen1 Ports (USB3_3_4)
5 Rear Speaker (Black) 13 USB 3.2 Gen1 Ports (USB3_1_2)****
6 Line In (Light Blue) 14 BIOS Flashback Button
7 Front Speaker (Lime)*** 15 Antenna Ports (on I/O Panel Shield)
* ere are two LEDs on each LAN port. Please refer to the table below for the LAN port LED indications.
Activity / Link LED Speed LED
Status Description Status Description
O No Link Orange 10Mbps connection
Blinking Data Activity Orange 100Mbps connection
On Link Green 1Gbps connection
2
1
89111213
5
4
7
6
1415 10
3
ACT/LINK LED
SPEED LED
LAN Port

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** ere are two LEDs on each LAN port. Please refer to the table below for the LAN port LED indications.
Activity / Link LED Speed LED
Status Description Status Description
O No Link O 10Mbps connection
Blinking Data Activity Orange 100Mbps/1Gbps connection
On Link Green 2.5Gbps connection
*** If you use a 2-channel speaker, please connect the speaker’s plug into “Front Speaker Jack”. See the table below
for connection details in accordance with the type of speaker you use.
Audio Output
Channels
Front Speaker
(No. 7)
Rear Speaker
(No. 5)
Central
(No. 4)
Line In
(No. 6)
2V -- -- --
4V V -- --
6V V V --
8VVVV
**** ACPI wake-up function is not supported on USB3_1_2 ports.
ACT/LINK LED
SPEED LED
LAN Port
Chapter 1 Introduction
ank you for purchasing ASRock TRX40 Taichi motherboard, a reliable
motherboard produced under ASRock’s consistently stringent quality control.
It delivers excellent performance with robust design conforming to ASRock’s
commitment to quality and endurance.
1.1 Package Contents
• ASRock TRX40 Taichi Motherboard (ATX Form Factor)
• ASRock TRX40 Taichi Quick Installation Guide
• ASRock TRX40 Taichi Support CD
• 4 x Serial ATA (SATA) Data Cables (Optional)
• 1 x ASRock SLI_HB_Bridge_2S Card (Optional)
• 1 x ASRock WiFi 2.4/5 GHz Antenna (Optional)
• 1 x ASRock HYPER QUAD M.2 CARD (Optional)
• 1 x ASRock Screwdriver (Optional)
• 6 x Screws for M.2 Sockets (Optional)
• 2 x Standos for M.2 Sockets (Optional)

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TRX40 Taichi
Chapter 1 Introduction
ank you for purchasing ASRock TRX40 Taichi motherboard, a reliable
motherboard produced under ASRock’s consistently stringent quality control.
It delivers excellent performance with robust design conforming to ASRock’s
commitment to quality and endurance.
1.1 Package Contents
• ASRock TRX40 Taichi Motherboard (ATX Form Factor)
• ASRock TRX40 Taichi Quick Installation Guide
• ASRock TRX40 Taichi Support CD
• 4 x Serial ATA (SATA) Data Cables (Optional)
• 1 x ASRock SLI_HB_Bridge_2S Card (Optional)
• 1 x ASRock WiFi 2.4/5 GHz Antenna (Optional)
• 1 x ASRock HYPER QUAD M.2 CARD (Optional)
• 1 x ASRock Screwdriver (Optional)
• 6 x Screws for M.2 Sockets (Optional)
• 2 x Standos for M.2 Sockets (Optional)
Because the motherboard specications and the BIOS soware might be updated, the
content of this documentation will be subject to change without notice. In case any modi-
cations of this documentation occur, the updated version will be available on ASRock’s
website without further notice. If you require technical support related to this mother-
board, please visit our website for specic information about the model you are using. You
may nd the latest VGA cards and CPU support list on ASRock’s website as well. ASRock
website http://www.asrock.com.

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1.2 Specications
Platform • ATX Form Factor
• 8 Layer PCB
• 2oz Copper PCB
CPU • Supports AMD Socket sTRX4
• Intersil Digital PWM
• 16 Power Phase design
• Supports ASRock Hyper BCLK Engine II
Chipset • AMD TRX40
Memory • Quad Channel DDR4 Memory Technology
• 8 x DDR4 DIMM Slots
• Supports DDR4 4666(OC)+/4600(OC)/4533(OC)/4466(OC)/
4400(OC)/4333(OC)/4266(OC)/4200(OC)/4133(OC)/4000
(OC)/3866(OC)/3800(OC)/3733(OC)/3600(OC)/3466
(OC)/3200/2933/2667/2400/2133 ECC & non-ECC, un-
buered memory (U-DIMM)
• Max. capacity of system memory: 256GB
• 15μ Gold Contact in DIMM Slots
Expansion
Slot
• 3 x PCI Express 4.0 x16 Slots (PCIE1/PCIE3/PCIE4: single at
x16 (PCIE1); dual at x16 (PCIE1) / x16 (PCIE3); triple at x16
(PCIE1) / x16 (PCIE3) / x16 (PCIE4)
* Supports NVMe SSD as boot disks
• 1 x PCI Express 4.0 x1 Slot
• Supports AMD 3-Way CrossFireXTM and CrossFireXTM
• Supports NVIDIA® 3-Way SLITM and SLITM
• Supports NVIDIA® NVLinkTM with dual NVIDIA® GeForce®
RTX series graphics cards**
** NVIDIA NVLink Bridge does not come with the package.
Please purchase it from NVIDIA® if necessary.

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TRX40 Taichi
• 1 x M.2 Socket (Key E) with the bundled WiFi-802.11ax
module
• 15μ Gold Contact in VGA PCIe Slots (PCIE1, PCIE3 and
PCIE4)
Audio • 7.1 CH HD Audio (Realtek ALC4050H+ALC1220)
• Premium Blu-ray Audio support
• Supports Surge Protection
• Supports Purity SoundTM 4
- Nichicon Fine Gold Series Audio Caps
- NE5532 Premium Headset Amplier for Front Panel
Audio Connector (Supports up to 600 Ohm headsets)
- Pure Power-In
- Direct Drive Technology
- PCB Isolate Shielding
- Impedance Sensing on Rear Out port
- Individual PCB Layers for R/L Audio Channel
- Gold Audio Jacks
- 15μ Gold Audio Connector
• Supports DTS Connect
LAN 1 x 2.5 Gigabit LAN 10/100/1000/2500 Mb/s (Dragon RT-
L8125AG):
• Supports Dragon 2.5G LAN Soware
- Smart Auto Adjust Bandwidth Control
- Visual User Friendly UI
- Visual Network Usage Statistics
- Optimized Default Setting for Game, Browser, and
Streaming Modes
- User Customized Priority Control
• Supports Wake-On-LAN
• Supports Lightning/ESD Protection
• Supports Energy Ecient Ethernet 802.3az
• Supports PXE
1 x Intel Gigabit LAN 10/100/1000 Mb/s (1 x Intel® I211AT):
• Supports Wake-On-LAN
• Supports Lightning/ESD Protection
• Supports Energy Ecient Ethernet 802.3az
• Supports PXE

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Wireless
LAN
• Intel® 802.11ax WiFi Module
• Supports IEEE 802.11a/b/g/n/ax
• Supports Dual-Band (2.4/5 GHz)
• Supports WiFi6 802.11ax (2.4Gbps)
• 2 antennas to support 2 (Transmit) x 2 (Receive) diversity
technology
• Supports Bluetooth 5.0 + High speed class II
• Supports MU-MIMO
Rear Panel
I/O
• 2 x Antenna Ports (on I/O Panel Shield)
• 1 x PS/2 Mouse/Keyboard Port
• 1 x Optical SPDIF Out Port
• 2 x USB 3.2 Gen2 Type-A Ports (10 Gb/s) (Supports ESD
Protection)
• 1 x USB 3.2 Gen2x2 Type C Port (20 Gb/s) (Supports ESD
Protection)
• 4 x USB 3.2 Gen1 Ports (Supports ESD Protection)
* Ultra USB Power is supported on USB3_1_2 ports.
* ACPI wake-up function is not supported on USB3_1_2 ports.
• 2 x RJ-45 LAN Ports with LED (ACT/LINK LED and SPEED
LED)
• 1 x BIOS Flashback Button
• HD Audio Jacks: Rear Speaker / Central / Line in / Front
Speaker / Microphone (Gold Audio Jacks)
Storage • 8 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0,
RAID 1 and RAID 10), NCQ, AHCI and Hot Plug
• 1 x Hyper M.2 Socket (M2_1), supports M Key type
2260/2280 M.2 PCI Express module up to Gen4x4 (64 Gb/s)*
• 1 x Hyper M.2 Socket (M2_2), supports M Key type
2260/2280/22110 M.2 SATA3 6.0 Gb/s module and M.2 PCI
Express module up to Gen4x4 (64 Gb/s)*
* Supports NVMe SSD as boot disks

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TRX40 Taichi
Connector • 1 x Power LED and Speaker Header
• 2 x RGB LED Headers
* Support in total up to 12V/3A, 36W LED Strip
• 2 x Addressable LED Headers
* Support in total up to 5V/3A, 15W LED Strip
• 1 x CPU Fan Connector (4-pin)
* e CPU Fan Connector supports the CPU fan of maximum
1A (12W) fan power.
• 1 x CPU/Water Pump Fan Connector (4-pin) (Smart Fan
Speed Control)
* e CPU/Water Pump Fan supports the water cooler fan of
maximum 2A (24W) fan power.
• 3 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan
Speed Control)
* e Chassis/Water Pump Fan supports the water cooler fan of
maximum 2A (24W) fan power.
* CPU_FAN2/WP, CHA_FAN1/WP, CHA_FAN2/WP and
CHA_FAN3/WP can auto detect if 3-pin or 4-pin fan is in use.
• 1 x 24 pin ATX Power Connector (Hi-Density Power Con-
nector)
• 2 x 8 pin 12V Power Connectors (Hi-Density Power Connec-
tor)
• 1 x Front Panel Audio Connector (15μ Gold Audio Connec-
tor)
• 1 x USB 2.0 Header (Supports 2 USB 2.0 ports) (Supports
ESD Protection)
• 2 x USB 3.2 Gen1 Headers (Support 4 USB 3.2 Gen1 ports)
(Supports ESD Protection)
• 1 x Front Panel Type C USB 3.2 Gen2 Header (Supports ESD
Protection)
• 1 x Dr. Debug with LED
• 1 x Power Button with LED
• 1 x Reset Button with LED
• 1 x Clear CMOS Button

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BIOS
Feature
• AMI UEFI Legal BIOS with GUI support
• Supports “Plug and Play”
• ACPI 5.1 compliance wake up events
• Supports jumperfree
• SMBIOS 2.3 support
• CPU, CPU VDDCR_SOC, DRAM, VPPM, PREM VDD_
CLDO, PERM VDDCR_SOC, +1.8V, VDDP Voltage Multi-
adjustment
Hardware
Monitor
• Temperature Sensing: CPU, CPU/Water Pump, Chassis/Wa-
ter Pump Fans
• Fan Tachometer: CPU, CPU/Water Pump, Chassis/Water
Pump Fans
• Quiet Fan (Auto adjust chassis fan speed by CPU tempera-
ture): CPU, CPU/Water Pump, Chassis/Water Pump Fans
• Fan Multi-Speed Control: CPU, CPU/Water Pump, Chassis/
Water Pump Fans
• Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore, CPU VD-
DCR_SOC, DRAM, VPPM, PREM VDDCR_SOC, +1.8V
OS • Microso® Windows® 10 64-bit
Certica-
tions
• FCC, CE
• ErP/EuP ready (ErP/EuP ready power supply is required)
* For detailed product information, please visit our website: http://www.asrock.com

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TRX40 Taichi
Please realize that there is a certain risk involved with overclocking, including adjusting
the setting in the BIOS, applying Untied Overclocking Technology, or using third-party
overclocking tools. Overclocking may aect your system’s stability, or even cause damage to
the components and devices of your system. It should be done at your own risk and expense.
We are not responsible for possible damage caused by overclocking.

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1.3 WiFi-802.11ax Module and ASRock WiFi 2.4/5 GHz
Antenna
WiFi-802.11ax + BT Module
is motherboard comes with an exclusive WiFi 802.11 a/b/g/n/ax + BT v5.0
module that oers support for WiFi 802.11 a/b/g/n/ax connectivity standards and
Bluetooth v5.0. WiFi + BT module is an easy-to-use wireless local area network
(WLAN) adapter to support WiFi + BT. Bluetooth v5.0 standard features Smart
Ready technology that adds a whole new class of functionality into the mobile
devices. BT 5.0 also includes Low Energy Technology and ensures extraordinary
low power consumption for PCs. e 2T2R WiFi solution sets a WiFi high speed
standard and oers max link rate up to 2.4Gbps.
* e transmission speed may vary according to the environment.
ASRock WiFi 2.4/5 GHz Antenna

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TRX40 Taichi
1.4 ASRock HYPER QUAD M.2 CARD
Specications
Dimensions • 9.6-in x 4.4-in
Interface • PCI Express 4.0 x 16 interface
Connector
• 4 x Hyper M.2 Sockets, support M Key type
2242/2260/2280/22110 M.2 PCI Express
module up to Gen4x4 (64 Gb/s)
• 1 x Graphics 12V Power Connector
Card Layout
1
5
2
3
4
HYPER QUAD M.2 card
1
ON
234
No. Description
1 Hyper M.2 Sockets
2 PCI Express 4.0 x 16 Interface
3 ASRock Utility Control Switch
4 Card Fan Switch
5 Graphics 12V Power Connector

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Installation Procedure
1. Remove the ve screws holding the bracket in place.
2. Peel o the protective lm(s) on the bracket's thermal pad(s) before you install M.2 SSD
module(s).
3. Fasten the ve screws holding the bracket in place.
Power o the PC and unplug the power cord. Detach all other cables from the PC.
4. Remove the PC cover.
5. Align and insert the card into a PCI Express 3.0 x16 slot on the motherboard.
Press rmly until the card is securely seated in place.

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TRX40 Taichi
ASRock Utility Control Switch
Card Fan Switch
Use this switch to control the card fan speed.
O: Full (e fan runs at full speed)
ON: Half (e fan runs at half speed, with a half voltage supply)
Graphics 12V Power Connector
is card provides a 6-pin graphics 12V power connector. Install the PSU’s
power cable to this connector when more than two M.2 cards* are installed.
*Intel Optane SSD 900P or other M.2 card with higher power consumption
SW1 Utility control
On Disabled
O Enabled
SW2 SW3 CARD number
O O CARD 1
On O CARD 2
O On CARD 3
On On CARD 4
SW4: no function

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HYPER QUAD M.2 CARD Utility
With the ASRock HYPER QUAD M.2 CARD Utility, you can check that if your M.2 SSD
is properly installed and adjust the fan speed. Place the Support CD into your DVD-ROM
drive to run this utility or download it from the ASRock website.
M.2 SSD
Status
Select a fan speed mode
[Manual] Select a fan speed preference
[Disable] Turn o the fan