Asrock X299 Taichi CLX Quick Installation Guide

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)

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)

2400-2483.5 MHz 18.5 + / -1.5 dbm

5150-5250 MHz 21.5 + / -1.5 dbm

WiFi

Bluetooth 2400-2483.5 MHz 8.5 + / -1.5 dbm

5250-5350 MHz

5470-5725 MHz

18.5 + / -1.5 dbm (no TPC)

21.5 + / -1.5 dbm (TPC)

25.5 + / -1.5 dbm (no TPC)

28.5 + / -1.5 dbm (TPC)

Motherboard Layout

ATXP WR 1

Intel

X299

ATX12V2

LAN

LAN

PCIE1

Top:

Central/Bass

Center :

REAR SPK

Top:

LINE IN

Center :

FRONT

Bottom :

Optica l

SPDIF

Bottom :

MIC IN

PCIE3

USB3_4

1

1

USB5_6

1

HD_AUDIO1

PCIE5

SATA3_2_3

SATA3_4_5

PCIE4

CPU_FAN1

RoH S

9

10

15

16

17

SATA3_6_7

18

2930

23

36

26

CLRC
BTN1

SATA3_0_1

3

5

8

DDR 4_B2 (6 4 bit, 28 8-pin m odule )

DDR 4_B1 (6 4 bit, 28 8-pin m odule )

DDR 4_A2 (6 4 bit, 28 8-pin m odule )

DDR 4_A1 (6 4 bit, 28 8-pin m odule )

2

1

31

22

CLRMOS1

1

M2_WIFI_1

TBT_M2_1

35

DDR 4_C1 (6 4 bit, 28 8-pin m odule )

DDR 4_C2 (6 4 bit, 28 8-pin m odule )

DDR 4_D1 (6 4 bit, 28 8-pin m odule )

DDR 4_D2 (6 4 bit, 28 8-pin m odule )

7

6

BIOS_A_LED 1

BIOS_B_LED 1

2066 Socket

Dr.

Debug

1

SPK_PLED1

M2_1

M2_ 3

M2_ 2

SATA3_A1_ A2

19

11

1

USB3_5 _6

14

20

21

T B1

1

RGB_HEADER1

1

RGB_HEADER2

1

32

PCIE2

CHA_FAN2/
W_PUMP

Purity

Sound 4

TM

Power

ADDR_LED1

1

ADDR_LED2

1

VROC1

1

33

ATX12V1

4

CPU_FAN2
/WP

CHA_FAN3
/WP

CHA_FAN1
/WP

12

USB32_TC1

13

1

SPI_TPM_J1

BIOS_A1

BIOS_B1

BIOS

BIOS

HDLED RESET

PLED PWRBTN

PANEL1

1

24

25

27

CHA_FAN4
/WP

28

CHA_FAN5
/WP

34

USB 3.2 Gen1
T: USB1
B: USB2

USB 2.0
T: USB1
B: USB2

USB 3.2 Gen1
T: USB3
B: USB4

Top:

2.5GLAN

(Realtek
RTL8125AG)

Top:
RJ-45

(I219V)

X299 Taichi CLX

English

1

English

2

No. Description

1 2 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_B1)

2 2 x 288-pin DDR4 DIMM Slots (DDR4_A2, DDR4_B2)

3 ATX 12V Power Connector (ATX12V2)

4 ATX 12V Power Connector (ATX12V1)

5 Addressable LED Header (ADDR_LED2)

6 2 x 288-pin DDR4 DIMM Slots (DDR4_C2, DDR4_D2)

7 2 x 288-pin DDR4 DIMM Slots (DDR4_C1, DDR4_D1)

8 RGB LED Header (RGB_HEADER2)

9 ATX Power Connector (ATXPWR1)

10 CPU Fan Connector (CPU_FAN1)

11 Chassis / Waterpump Fan Connector (CHA_FAN1/WP)

12 CPU / Waterpump Fan Connector (CPU_FAN2/WP)

13 Front Panel Type C USB 3.2 Gen2 Header (USB32_TC1)

14 USB 3.2 Gen1 Header (USB3_5_6)

15 SATA3 Connectors (SATA3_0_1)

16 SATA3 Connectors (SATA3_2_3)

17 SATA3 Connectors (SATA3_4_5)

18 SATA3 Connectors (SATA3_6_7)

19 SATA3 Connectors (SATA3_A1_A2)

20 SPI TPM Header (SPI_TPM_J1)

21 Power LED and Speaker Header (SPK_PLED1)

22 System Panel Header (PANEL1)

23 Power Button (PWRBTN1)

24 Reset Button (RSTBTN1)

25 Chassis / Waterpump Fan Connector (CHA_FAN2/WP)

26 Clear CMOS Jumper (CLRMOS1)

27 Chassis / Waterpump Fan Connector (CHA_FAN3/WP)

28 Chassis / Waterpump Fan Connector (CHA_FAN4/WP)

29 USB 2.0 Header (USB5_6)

30 USB 2.0 Header (USB3_4)

31 Addressable LED Header (ADDR_LED1)

32 RGB LED Header (RGB_HEADER1)

33 Virtual RAID On CPU Header (VROC1)

34 Chassis / Waterpump Fan Connector (CHA_FAN5/WP)

35 underbolt AIC Connector (TB1)

36 Front Panel Audio Header (HD_AUDIO1)

I/O Panel

X299 Taichi CLX

5

3

6

1

2

4

1213

No. Description No. Description

1 LAN RJ-45 Port (Intel® I219V)* 8 Microphone (Pink)

2 2.5G LAN RJ-45 Port 9 Optical SPDIF Out Port

(Dragon RTL8125AG)** 10 USB 3.2 Gen1 Port (USB3_3_4)****

3 Central / Bass (Orange) 11 USB 3.2 Gen1 Port (USB3_1_2)

4 Rear Speaker (Black) 12 USB 2.0 Port (USB2_1_2)

5 Line In (Light Blue) 13 Antenna Ports

6 Front Speaker (Lime)*** 14 Clear CMOS Button

7 USB 3.2 Gen2x2 Type-C Port (ASMedia ASM3242)

* ere are two LEDs on each LAN port. Please refer to the table below for the LAN port LED indications.

ACT/LINK LED

SPEED LED

LAN Por t

11

10

8 7914

Activity / Link LED Speed LED

Status Description Status Description

O No Link O 10Mbps connection
Blinking Data Activity Orange 100Mbps connection
On Link Green 1Gbps connection

English

3

** ere are two LEDs on each LAN port. Please refer to the table below for the LAN port LED indications.

ACT/LINK LED

SPEED LED

LAN Por t

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 speak er, please connect the speaker’s plug into “Front Speaker Jack”. See the table below
for connection d etails in accordance w ith the type of speaker you use.

English

Audio Output

Channels

Front Speaker

(No. 6)

Rear Speaker

(No. 4)

Central / Bass

(No. 3)

2 V -- -- --
4 V V -- --
6 V V V --
8 V V V V

**** ACPI wake-up function is not supported on USB3_ 3_4 ports.

Line In
(No. 5)

4

Chapter 1 Introduction

ank you for purchasing ASRock X299 Taichi CLX 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.

Becau se 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 w ithout further notice. If you require technical support related to this mother­board, please visit our website for specic information about the model you are using. You
may nd the l atest VGA cards and CPU suppor t list on ASRock’s website a s well. ASRock
website http://www.asrock.com.

1.1 Package Contents

ASRock X299 Taichi CLX Motherboard (ATX Form Factor)

•

ASRock X299 Taichi CLX Quick Installation Guide

•

ASRock X299 Taichi CLX Support CD

•

1 x ASRock SLI_HB_Bridge_2S Card (Optional)

•

1 x ASRock WiFi 2.4/5 GHz Antenna (Optional)

•

1 x ASRock Screwdriver (Optional)

•

4 x Serial ATA (SATA) Data Cables (Optional)

•

3 x Screws for M.2 Sockets (Optional)

•

3 x Standos for M.2 Sockets (Optional)

•

X299 Taichi CLX

English

5

1.2 Specications

Platform

CPU

Chipset

Memory

* e maximum memory frequency supported may vary by
processor type.
* Please refer to Memory Support List on ASRock’s website for
more information. (http://www.asrock.com/)

ATX Form Factor

•

8 Layer PCB

•

2oz Copper PCB

•

Supports Intel® CoreTM X-Series Processor Family for the

•

LGA 2066 Socket (Cascade Lake-X, Skylake X Refresh and
Skylake X)
Digi Power design

•

13 Power Phase design

•

Supports Intel® Turbo Boost Max Technology 3.0

•

Supports ASRock Hyper BCLK Engine III

•

Intel® X299

•

Quad Channel DDR4 Memory Technology

•

8 x DDR4 DIMM Slots

•

Supports DDR4 4200+(OC)*/4133(OC)/400 0(OC)/3866(OC)

•

/3800(OC)/3733(OC)/3600(OC)/3200(OC)/2933(OC)/2800
(OC)/2666/2400/2133 non-ECC, un-buered memory

Max. capacity of system memory: 256GB

•

Supports Intel® Extreme Memory Prole (XMP) 2.0

•

15μ Gold Contact in DIMM Slots

•

English

6

Expansion
Slot

4 x PCI Express 3.0 x16 Slots*

•

* If you install CPU with 48 lanes, PCIE1/PCIE2/PCIE3/PCIE5
will run at x16/x8/x16/x8.
If a M.2 PCI Express module is installed on M2_1 or M2_2,
PCIE2 will downgrade to x4 mode.
If M.2 PCI Express modules are installed on M2_1 and M2_2,
PCIE2 will be disabled.
* If you install CPU with 44 lanes, PCIE1/PCIE2/PCIE3/PCIE5
will run at x16/x4/x16/x8.
If a M.2 PCI Express module is installed on M2_1, PCIE2 will
be disabled.

Audio

X299 Taichi CLX

* If you install CPU with 28 lanes, PCIE1/PCIE2/PCIE3/PCIE5
will run at x16/x4/x8/x0.
If a M.2 PCI Express module is installed on M2_1, PCIE2 will
be disabled.
* Supports NVMe SSD as boot disks

1 x PCI Express 3.0 x1 Slot

•

Supports AMD 3-Way CrossFireXTM and CrossFireXTM **

•

Supports NVIDIA® 3-Way SLITM and SLITM**

•

** 3-Way CrossFireXTM and 3-Way SLITM are only supported
with CPU with 48 lanes or 44 lanes.

1 x Vertical M.2 Socket (Key E) with the bundled WiFi-

•

802.11ax module (on the rear I/O)
15μ Gold Contact in VGA PCIe Slot (PCIE1 and PCIE3)

•

7.1 CH HD Audio with Content Protection (Realtek

•

ALC1220 Audio Codec)
Premium Blu-ray Audio support

•

Supports Surge Protection (ASRock Full Spike Protection)

•

Supports Purity SoundTM 4

•

- Nichicon Fine Gold Series Audio Caps

- 120dB SNR DAC with Dierential Amplier

- 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

•

English

7

LAN

Wireless
LAN

1 x 2.5 Gigabit LAN 10/100/1000/2500 Mb/s (Dragon

RTL8125AG):

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® I219V):

Supports Wake-On-LAN

•

Supports Lightning/ESD Protection

•

Supports Energy Ecient Ethernet 802.3az

•

Supports PXE

•

Intel® 802.11ax WiFi Module

•

Supports IEEE 802.11a/b/g/n/ax

•

Supports Dual-Band (2.4/5 GHz)

•

Supports high speed wireless connections up to 2.4Gbps

•

2 antennas to support 2 (Transmit) x 2 (Receive) diversity

•

technology
Supports Bluetooth 5.0 + High speed class II

•

Supports MU-MIMO

•

English

8

Rear Panel
I/O

2 x Antenna Ports

•

1 x Optical SPDIF Out Port

•

2 x USB 2.0 Ports (Supports ESD Protection)

•

1 x USB 3.2 Gen2x2 Type-C Port (20 Gb/s)

•

(ASMedia ASM3242) (Supports ESD Protection)

* Ultra USB Power is supported on USB3_3_4 ports.
* ACPI wake-up function is not supported on USB3_3_4 ports.

4 x USB 3.2 Gen1 Ports (Supports ESD Protection)

•

2 x RJ-45 LAN Ports with LED (ACT/LINK LED and SPEED

•

LED)

Storage

X299 Taichi CLX

1 x Clear CMOS Button

•

HD Audio Jacks: Rear Speaker / Central / Bass / Line in /

•

Front Speaker / Microphone (Gold Audio Jacks)

8 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0,

•

RAID 1, RAID 5, RAID 10, Intel Rapid Storage Technology
17 and Intel Smart Response Technology), NCQ, AHCI and

Hot Plug*
* If M2_3 is occupied by a SATA-type M.2 device, SATA3_7
will be disabled.

2 x SATA3 6.0 Gb/s Connectors by ASMedia ASM1061,

•

support NCQ, AHCI and Hot Plug

2 x Ultra M.2 Sockets (M2_1 and M2_2), support M Key

•

type 2242/2260/2280 M.2 PCI Express module up to Gen3

x4 (32 Gb/s)**

1 x Ultra M.2 Socket (M2_3), supports M Key type

•

2242/2260/2280/22110 M.2 SATA3 6.0 Gb/s module and M.2

PCI Express module up to Gen3 x4 (32 Gb/s)**
** M2_2 is only supported with CPU with 48 lanes.
** Supports Intel® OptaneTM Tech nolo gy
** Supports PCIe RAID
** Supports NVMe SSD as boot disks

Connector

1 x Virtual RAID On CPU Header

•

1 x SPI TPM Header

•

1 x Power LED and Speaker Header

•

2 x RGB LED Headers

•

* Supports 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.

5 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan

•

Speed Control)

English

9

BIOS
Feature

* e Chassis/Water Pump Fan supports the water cooler fan of
maximum 2A (24W) fan power.
* CPU_FAN2/WP, CHA_FAN1~5/WP can auto detect if 3-pin
or 4-pin fan is in use.

1 x 24 pin ATX Power Connector (Hi-Density Power

•

Connec tor)
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 underbolt AIC Connector (5-pin)

•

* e underbolt™ AIC card can be installed in the enabled
PCIe slot (depending on CPU type).

2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports

•

ESD Protection)
1 x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports)

•

(Supports ESD Protection)
1 x Front Panel Type C USB 3.2 Gen2 Header (ASMedia

•

ASM314 2)
1 x Dr. Debug with LED

•

1 x Power Button with LED

•

1 x Reset Button

•

2 x AMI UEFI Legal BIOS with multilingual GUI support

•

(1 x Main BIOS and 1 x Backup BIOS)
Supports Secure Backup UEFI Technology

•

ACPI 6.1 Compliant wake up events

•

SMBIOS 3.0 Support

•

CPU, DRAM, VPPM, VTTM, PCH 1.0V, VCCMPHY, VC-

•

CIO, VCCSA, CPUPLL, CLK VDD Voltage Multi-adjust­ment

English

10

Hardware
Monitor

Temperature Sensing: CPU, CPU/Water Pump, Chassis/

•

Water 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, DRAM,

•

PCH 1.0V, VCCIO, VCCSA

Microso® Windows® 10 64-bit

OS

Certica­tions

* For detailed product information, please visit our website: http://www.asrock .com

Please realize that the re is a certain risk involved with overclocking, including adjusting
the setting in the BIOS, applying Untied Overclocking Technology, or using third-party
overclocking tools. O verclocking 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 ow n risk and expense.
We are not responsible for possible damage caused by overclocking.

•

FCC, CE

•

ErP/EuP ready (ErP/EuP ready power supply is required)

•

X299 Taichi CLX

11

English

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 (pre-installed on the rear I/O panel) 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-to­use 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

English

12

1.4 USB 3.2 Gen2 x2 Module

Specications

X299 Taichi CLX

Platform •

Controller •

M.2

Connector

OS

Size: 1.45-in x 1.65-in, 3.7 cm x 4.2 cm

ASMedia ASM3242 Controller

Proprietary design for Asrock specic motherboard

•

* Please note that plugging into other M.2 connector may
damage the motherboard and this module

1 x USB 3.2 Gen2x2 Type-C Port (Supports ESD Protection

•

(ASRock Full Spike Protection))

*For charging Type-A USB devices, we suggest using the Type-A
connectors on your motherboard.
*is port supports power outputs up to 5V/3A. For charging Type-C
USB devices, the device should support Type-C standards
to adjust the current because it will be dierent in Power On state (3
Amp) and Sleep state (1 Amp).
*Some Type-C USB devices may only be charged by its own adapter.

Microso® Windows® 10 64-bit

•

USB 3.2 Gen2x2

Type-C Port

TBT_ M2_1

English

13

Chapter 2 Installation

is is an ATX form factor motherboard. Before you install the motherboard, study
the conguration of your chassis to ensure that the motherboard ts into it.

Pre-installation Precautions

Take note of the following precautions before you install motherboard components
or change any motherboard settings.

Make sure to unplug the power cord before installing or removing the motherboard

•

components. Failure to do so may cause physical injuries and damages to motherboard
components.
In order to avoid damage from static electricity to the motherboard’s components,

•

NEVER place your motherboard directly on a carpet. Also remember to use a grounded
wrist strap or touch a safety grounded object before you handle the components.
Hold components by the edges and do not touch the ICs.

•

Whenever you uninstall any components, place them on a grounded anti-static pad or

•

in the bag that comes with the components.
When placing screws to secure the motherboard to the chassis, please do not over-

•

tighten the screws! Doing so may damage the motherboard.

English

14

X299 Taichi CLX

2.1 Installing the CPU

1. Before you insert the 2066-Pin CPU into the socket, please check if the PnP cap i s on the
socket, if the CPU surface is unclean, or if there are any bent pins in the sock et. Do not
force to in sert the CPU into the socket if above situation is found . Otherwise, the CPU
will be seriously damaged.

2. Unplug all power cables before in stalling the CPU.

CAU TION:

Please note that X299 platform is only compatible with the LGA 2066 socket, which is
incompatible with the LGA 2011-3 socket (for X99 platform).

1

A

B

A

2

B

English

15

3

4

A

B

English

16

5

X299 Taichi CLX

6

A

B

7

A

B

8

English

Please save and replace the cover if the processor i s removed. e cover must be placed if
you wish to return the motherboard for aer service.

17

2.2 Installing the CPU Fan and Heatsink

1 2

English

18

FAN

CPU_

X299 Taichi CLX

2.3 Installation of Memory Modules (DIMM)

is motherboard provides eight 288-pin DDR4 (Double Data Rate 4) DIMM slots, and
supports Quad Channel Memory Technology.

1. For quad channel cong uration, you always need to install identical (the same brand,
speed , size and chip-type) DDR4 DIMM pairs.

2. It is not allowed to install a DDR, DDR2 or DDR3 memory module into a DDR4 slot;
otherwise, this motherboard and DIMM may be damaged.

3. e DIMM only ts in one correct orientation. It will cause permanent damage to the
motherboard and the DIMM if you force the DIMM into the slot at incorrect orientation.

Quad Channel Memory Conguration (For CPU with 48, 44 or 28 PCIe
lanes)

Priority 1 2

DDR4_B1

DDR4_B2

DDR4_A1

DDR4_A2

DDR4_D1

DDR4_D2

DDR4_C1

DDR4_C2

Populated Populated

Populated

Populated Populated

Populated

Populated Populated

Populated

Populated Populated

Populated

Due to Intel® CPU spec denition, please install the memory modules on DDR4_A1,

•

DDR4_B1, DDR4_C1 and DDR4_D1 for rst priority. If the four DDR4 DIMM slots
above are fully installed, and you want to use more than four memory modules, please
install the other memory modules from le to right (from DDR4_A2, DDR4_B2,
DDR4_D2 to DDR4_C2.)
If only two memory modules are installed in the DDR4 DIMM slots, then Dual

•

Channel Memory Technology is activated. If three memory modules are installed, then
Triple Channel Memory Technology is activated. If more than four memory modules
are installed in the DDR4 DIMM slots, then Quad Channel Memory Technology is
activated.

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1

2

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20

3

2.4 Expansion Slots (PCI Express Slots)

ere are 5 PCI Express slots on the motherboard.

Before installing an ex pansion card, please make sure that the power supply is switched o
or the power cord is unplugged. Please re ad the documentation of the expansion card and
make necessary hardware settings for the card before you start the installation.

PCIe slots:

PCIE1 (PCIe 3.0 x16 slot) is used for PCI Express x16 lane width graphics cards.
PCIE2 (PCIe 3.0 x16 slot) is used for PCI Express x8 lane width graphics cards.
PCIE3 (PCIe 3.0 x16 slot) is used for PCI Express x16 lane width graphics cards.
PCIE4 (PCIe 3.0 x1 slot) is used for PCI Express x1 lane width cards.
PCIE5 (PCIe 3.0 x16 slot) is used for PCI Express x8 lane width graphics cards.
*If you install CPU with 48 lanes, PCIE1/PCIE2/PCIE3/PCIE5 will run at x16/x8/
x16/x8.
* If you install CPU with 44 lanes, PCIE1/PCIE2/PCIE3/PCIE5 will run at x16/x4/
x16/x8.
* If you install CPU with 28 lanes, PCIE1/PCIE2/PCIE3/PCIE5 will run at x16/x4/
x8/x0.

X299 Taichi CLX

PCIe Slot Congurations (For CPU with 48 PCIe lanes)

PCIE1 PCIE2 PCIE3 PCIE4 PCIE5

Single Graphics Card x16 N/A N/A N/A N/A

Two Graphics Cards in

CrossFireXTM or SLITM

Mode

ree Graphics Cards in

3-Way CrossFireXTM Mode

or 3-Way SLITM Mode

If a M.2 PCI Express module is installed on M2_1 or M2_2, PCIE2 will downgrade to x4 mode.
If M.2 PCI Express modules are installed on M2_1 and M2_2, PCIE2 will be disabled.

x16 N/A x16 N/A N/A

x16 N/A x16 N/A x8

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21

PCIe Slot Congurations (For CPU with 44 PCIe lanes)

PCIE1 PCIE2 PCIE3 PCIE4 PCIE5

Single Graphics Card x16 N/A N/A N/A N/A

Two Graphics Cards in

CrossFireXTM or SLITM

Mode

ree Graphics Cards in

3-Way CrossFireXTM Mode

or 3-Way SLITM Mode

If a M.2 PCI Express module is installed on M2_1, PCIE2 will be disabled.

x16 N/A x16 N/A N/A

x16 N/A x16 N/A x8

PCIe Slot Congurations (For CPU with 28 PCIe lanes)

PCIE1 PCIE2 PCIE3 PCIE4 PCIE5

Single Graphics Card x16 N/A N/A N/A N/A

Two Graphics Cards in

CrossFireXTM or SLITM

Mode

x16 N/A x8 N/A N/A

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If a M.2 PCI Express module is installed on M2_1, PCIE2 will be disabled.

For a better ther mal environment, please connect a ch assis fan to the motherboard’s
chassis fa n connector (CH A_FAN1/WP, CHA _FAN2 /WP, CH A_FA N3/WP, C HA_ FAN4/
WP or CHA_FAN5/WP) when using multiple graphics cards.

* If you install CPU with 44 or 28 lanes and encounter CrossFire issues, please
do the followings.

1. Enter UEFI by pressing <F2> or <Del> during system startup.

2. Select “Boot > CSM” from the menu.

3. Set "Launch Storage OpROM policy" to "UEFI only".

4. Press F10 to Save and Exit.

PCIE Slot Speed (For CPU with 48 PCIe lanes)

X299 Taichi CLX

PCIE1

PCIE2 x8

PCIE3 x16

PCIE4 x1 (PCH)

PCIE5 x8

*If M.2 PCI Express modules are installed on M2_1 and M2_2, PCIE2 will be disabled.

x16

PCIE Slot Speed (For CPU with 44 PCIe lanes)

PCIE1 x16

PCIE2

PCIE3 x16

PCIE4 x1 (PCH)

x4

PCIE5 x8

*If a M.2 PCI Express module is installed on M2_1, PCIE2 will be disabled.

PCIE Slot Speed (For CPU with 28 PCIe lanes)

PCIE1 x16

PCIE2 x4

PCIE3 x8

PCIE4 x1 (PCH)

PCIE5 N/A

*If a M.2 PCI Express module is installed on M2_1, PCIE2 will be disabled.

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23

2.5 Jumpers Setup

e illustration shows how jumpers are setup. When the jumper cap is placed on
the pins, the jumper is “Short”. If no jumper cap is placed on the pins, the jumper is
“Open”.

English

Clear CMOS Jumper
(CLRCMO S1)
(see p.1, No. 26)

CLRCMOS1 allows you to clear the data in CMOS. e data in CMOS includes
system setup information such as system password, date, time, and system setup
parameters. To clear and reset the system parameters to default setup, please
turn o the computer and unplug the power cord, then use a jumper cap to short
the pins on CLRCMOS1 for 3 seconds. Please remember to remove the jumper
cap aer clearing the CMOS. If you need to clear the CMOS when you just nish
updating the BIOS, you must boot up the system rst, and then shut it down
before you do the clear-CMOS action.

e Clear CMOS Button has the same function as the Clear CMOS jumper.

2-pin Jumper

Short: Clear CMOS
Open: Default

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2.6 Onboard Headers and Connectors

Onboard headers and connectors are NOT jumpers. Do NOT place jumper caps over these
heade rs and connectors. Placing jumper caps over the headers and connectors will cause
permanent damage to the motherboard.

X299 Taichi CLX

System Panel Header
(9-pi n PANEL1)
(see p.1, No. 22)

PWRBTN (Power Button):

Connec t to the power button on the chassi s front panel. You may congure the way to tur n
o your system using the power button.

RESET (Reset B utton):
Connec t to the reset button on the chassi s front panel. Press the reset button to restart the
computer if the computer f reezes and fails to per form a normal restar t.

PLED (Syste m Power LED):
Connec t to the power status indicator on the chassis front panel. e LED i s on when the
system is operating. e LED keeps blinking when the system is in S1/S3 sleep state. e
LED is o when the system is in S4 slee p state or powered o (S5).

HDLED (Ha rd Drive Activity LED):
Connec t to the hard drive activity LED on the chassis front panel. e LED is on when the
hard drive is reading or wr iting data.

e front panel design may dier by chassis. A front panel module mainly consists of powe r
button, reset button , power LED, hard dr ive activity LED, speaker and etc. When connect­ing your chassi s front panel module to thi s header, make sure the wire a ssignments and the
pin assignments are matched correctly.

1

PLED+

PLED-

HDLED-

HDLED+

PWRBTN#

GND

RESET#

GND

GND

Connect the power
button, reset button and
system status indicator on
the chassis to this header
according to the pin
assignments below. Note
the positive and negative
pins before connecting
the cables.

25

English

Power LED and Speaker

1

+5V

DUMMY

PLED+

PLED+

PLED-

DUMMY

SPEAKER

DUMMY

GND

GND

P+

P-

USB_PWR

P+

P-

USB_PWR

1

Header
(7-pin SPK_PLED1)
(see p.1, No. 21)

Please connect the
chassis power LED and
the chassis speaker to this
header.

Serial ATA3 Connectors
(SATA3_0_1:
see p.1, No. 15)
(SATA3_2_3:
see p.1, No. 16)
(SATA3_4_5:
see p.1, No. 17)
(SATA3_6_7:
see p.1, No. 18)
(SATA3_A1_A2:
see p.1, No. 19)

USB 2.0 Headers
(9-pin USB3_4)
(see p.1, No. 30)
(9-pin USB5_6)
(see p.1, No. 29)

SATA3_0

SATA3_2

SATA3_4

SATA3_6

SATA3_A1

ese ten SATA3
connectors support SATA
data cables for internal

SATA3_1

storage devices with up to

6.0 Gb/s data transfer rate.

SATA3_3

* To minimize the boot
time, use Intel® X299
SATA ports (SATA3_0~7)

SATA3_5

for your bootable devices.
* If M2_3 is occupied by
a SATA-type M.2 device,

SATA3_7

SATA3_7 will be disabled.

SATA3_A2

ere are two headers
on this motherboard.
Each USB 2.0 header can
support two ports.

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26

X299 Taichi CLX

J_SENSE

OUT2_L

1

MIC_RET

PRESENCE#

GND

OUT2_R

MIC2_R

MIC2_L

OUT_RET

1

IntA_PB_SSRX+

A_SSRX+

A_SSTX+

USB 3.2 Gen1 Header
(19-pin USB3_5_6)
(see p.1, No. 14)

Front Panel Type C USB

3.2 Gen2 Header
(26-pin USB32_TC1)
(see p.1, No. 13)

Front Panel Audio Header
(9-pin HD_ AUDIO1)
(see p.1, No. 36)

Dummy

IntA_PB_D+

IntA_PB_D-

IntA_PB_SSTX+

IntA_PB_SSTX-

IntA_PB_SSRX-

VbusV

IntA_PA_D+

IntA_PA_D-

GND

GND

IntA_P

IntA_PA_SSTX-

GND

IntA_P

GND

IntA_PA_SSRX-

VbusV

USB Type-C Cable

ere is one header on
this motherboard. is
USB 3.2 Gen1 header can
support two ports.

ere is one Front
Panel Type C USB 3.2
Gen2 Header on this
motherboard. is header
is used for connecting a
USB 3.2 Gen2 module for
additional USB 3.2 Gen2
ports.

is header is for
connecting audio devices
to the front audio panel.

1. High Denition Audio supports Jack Sensing, but the panel wire on the chassis must sup­port HDA to function correctly. Please follow the instructions in our manual and chassis
manual to install your system.

2. If you use an AC’97 audio panel , please install it to the front panel audio header by the
steps below:
A. Connect Mic_IN (MIC) to MIC2_ L.
B. Conne ct Audio_R (RIN) to OUT2_R and Audio_ L (LIN) to OUT2_ L.
C. Connect Ground (GND) to Ground (GND).
D. MIC_ RET and OUT_RET are for the HD audio panel only. You don’t need to connect
them for the AC’97 audio panel .
E. To activate the front mic, go to the “FrontMic” Tab in the Realtek Control panel and
adjust “Recording Volume”.

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27

Chassis Water Pump Fan

FAN_SPEED_CONTROL

1 2 3 4

GND

1 2 3 4

GND

1 2 3 4

FAN_SPEED_CONTROL

4

FAN_SPEED_CONTROL

1 2 3 4

Connectors
(4-pin CHA_FAN1/WP)
(see p.1, No. 11)

(4-pin CHA_FAN2/WP)
(see p.1, No. 25)

FAN_VOLTAGE

FAN_SPEED

FAN_SPEED_CONTROL

CHA_FAN_SPEED

FAN_VOLTAGE

GND

is motherboard
provides ve 4-Pin water
cooling

chassis
connectors. If you plan to
connect a 3-Pin
water cooler fan, please
connect it to Pin 1-3.

3
2
1

fan

chassis

English

(4-pin CHA_FAN3/WP)
(see p.1, No. 27)
(4-pin CHA_FA N4/WP)
(see p.1, No. 28)
(4-pin CHA_FAN5/WP)
(see p.1, No. 34)

CPU Fan Connector
(4-pin CPU_FAN1)
(see p.1, No. 10)

CPU Water Pump Fan
Connector
(4-pin CPU_FAN2/WP)
(see p.1, No. 12)

ATX Power Connector
(24-pin ATXPWR1)
(see p.1, No. 9)

FAN_VOLTAGE

FAN_SPEED

FAN_SPEED_CONTROL

CPU_FAN_SPEED

FAN_VOLTAGE

GND

CPU_FAN_SPEED

FAN_VOLTAGE

GND

12

1

is motherboard
provides a 4-Pin CPU fan
(Quiet Fan) connector.
If you plan to connect a
3-Pin CPU fan, please
connect it to Pin 1-3.

is motherboard
provides a 4-Pin water
cooling CPU fan
connector. If you plan
to connect a 3-Pin CPU
water cooler fan, please
connect it to Pin 1-3.

24

is motherboard
provides a 24-pin ATX
power connector. To use a
20-pin ATX power supply,

13

please plug it along Pin 1
and Pin 13.

28