Asrock X299 Killer SLI/ac User Manual

Version 1.0

Published May 2017

Copyright©2017 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 ww w.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)

Contents

Chapter 1 Introduction 1

1.1 Package Contents 1

1.2 Specications 2

1.3 Motherboard Layout 7

1.4 I/O Panel 9

Chapter 2 Installation 13

2.1 Installing the CPU 14

2.2 Installing the CPU Fan and Heatsink 17

2.3 Installation of Memory Modules (DIMM) 18

2.4 Expansion Slots (PCI Express Slots) 20

2.5 Jumpers Setup 22

2.6 Onboard Headers and Connectors 23

2.7 Smart Switches 29

2.8 SLITM , 3-Way SLITMand Quad SLITM Operation Guide 30

2.8.1 Installing Two SLITM-Ready Graphics Cards 30

2.8.2 Installing Three SLITM-Ready Graphics Cards 32

2.8.3 Driver Installation and Setup 34

2.9 CrossFireXTM, 3-Way CrossFireXTM and Quad CrossFireXTM
Operation Guide 35

2.9.1 Installing Two CrossFireXTM-Ready Graphics Cards 35

2.9.2 Installing Three CrossFireXTM-Ready Graphics Cards 37

2.9.3 Driver Installation and Setup 38

2.10 M.2_SSD (NGFF) Module Installation Guide 39

Chapter 3 Software and Utilities Operation 43

3.1 Installing Drivers 43

3.2 A-Tuning 44

3.2.1 Installing A-Tuning 44

3.2.2 Using A-Tuning 44

3.3 ASRock Live Update & APP Shop 47

3.3.1 UI Overview 47

3.3.2 Apps 48

3.3.3 BIOS & Drivers 51

3.3.4 Setting 52

3.4 ASRock RGB LED 53

Chapter 4 UEFI SETUP UTILITY 55

4.1 Introduction 55

4.2 EZ Mode 56

4.3 Advanced Mode 57

4.3.1 UEFI Menu Bar 57

4.3.2 Navigation Keys 58

4.4 Main Screen 59

4.5 OC Tweaker Screen 60

4.6 Advanced Screen 76

4.6.1 CPU Conguration 77

4.6.2 Chipset Conguration 79

4.6.3 Storage Conguration 81

4.6.4 Super IO Conguration 83

4.6.5 ACPI Conguration 84

4.6.6 USB Conguration 85

4.6.7 Trusted Computing 86

4.7 Tools 87

4.8 Hardware Health Event Monitoring Screen 89

4.9 Security Screen 92

4.10 Boot Screen 93

4.11 Exit Screen 95

X299 Killer SLI/ac

Chapter 1 Introduction

ank you for purchasing ASRock X 299 Killer SLI/ac 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.

In this documentation, Chapter 1 and 2 contains the introduction of the

motherboard and step-by-step installation guides. Chapter 3 contains the operation

guide of the soware and utilities. Chapter 4 contains the conguration guide of

the BIOS setup.

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 Killer SLI/ac Motherboard (ATX Form Factor)

•

ASRock X299 Killer SLI/ac Quick Installation Guide

•

ASRock X299 Killer SLI/ac Support CD

•

1 x I/O Panel Shield

•

1 x ASRock SLI_HB_Bridge_2S Card (Optional)

•

1 x ASRock 3-Way SLI-2S1S Bridge Card (Optional)

•

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

•

2 x ASRock WiFi 2.4/5 GHz Antennas (O pt iona l)

•

3 x Screws for Ultra M.2 Sockets (Optional)

•

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1

1.2 Specications

Platform

CPU

Chipset

Memory

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* Please note that the 4-Core processors only support Intel®

Turbo Boost Technology 2.0.

•

•

•

•

•

* e maximum memor y 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

Supports Intel® CoreTM X-Series Processor Family for the

LGA 2066 Socket

Digi Power design

11 Power Phase design

Supports Intel® Turbo Boost Ma x Technology 3.0

Supports ASRock Hyper BCLK Engine III

Intel® X299

Quad Channel DDR4 Memory Technology

8 x DDR4 DIMM Slots

Supports DDR4 440 0+(OC)*/4266(OC)/4133(O C)/40 00

(OC)/3866(OC)/380 0(OC)/3733(OC)/3600(OC)/3200(OC)/2

933(OC)/2800(OC)/2666/2400/2133 non-ECC, un-buered

memory

Supports non-ECC RDIMM (Registered DIMM)

Max. capacity of system memory: 128GB

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

15μ Gold Contact in DIMM Slots

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2

Expansion
Slot

4 x PCI Express 3.0 x16 Slots*

•

* 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.

* If you install CPU with 16 lanes, PCIE1/PCIE2/PCIE3/PCIE5

will run at x16/x4/x0/x0 or x8/x4/x8/x0.

* Supports NVMe SSD as boot disks

1 x PCI Express 3.0 x1 Slot**

•

Audio

X299 Killer SLI/ac

** If PCIE4 slot is occupied, M2_2 slot will support M.2 PCI

Express module up to Gen3 x2 (16 Gb/s).

Supports AMD Quad CrossFireXTM, 3-Way CrossFireXTM

•

and CrossFireXTM ***

Supports NVIDIA® Quad SLITM, 3-Way SLITM and SLITM***

•

*** 3-Way CrossFireXTM and 3-Way SLITM are only supported

with CPU with 44 lanes.

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

•

802.11ac 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

•

Supports Purity SoundTM 4

•

- Nichicon Fine Gold Series Audio Caps

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

- TI® 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 Line Out port

- Individual PCB Layers for R/L Audio Channel

- 15μ Gold Audio Connector

Supports DTS Connect

•

LAN

Wireless
LAN

Gigabit LAN 10/100/10 00 Mb/s

•

Giga PHY Intel® I219V

•

Supports Wake-On-LAN

•

Supports Lightning/ESD Protection

•

Supports Energy Ecient Ethernet 802.3az

•

Supports PXE

•

Intel® 802.11ac WiFi Module (Free Bundle)

•

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

•

Supports Dual-Band (2.4/5 GHz)

•

Supports high speed wireless connections up to 433Mbps

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Supports Bluetooth 4.2 / 3.0 + High speed class II

•

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3

English

Rear Panel
I/O

Storage

2 x Antenna Ports

•

1 x PS/2 Mouse/Keyboard Port

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1 x Optical SPDIF Out Port

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4 x USB 2.0 Ports (Supports ESD Protection)

•

1 x USB 3.1 Type-A Port (10 Gb/s) (ASMedia ASM3142)

•

(Supports ESD Protection)

1 x USB 3.1 Type-C Port (10 Gb/s) (ASMedia ASM3142)

•

(Supports ESD Protection)

4 x USB 3.0 Ports (Supports ESD Protection)

•

1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED

•

LED)

1 x Clear CMOS Switch

•

HD Audio Jacks: Rear Speaker / Centra l / Bass / Line in /

•

Front Speaker / Microphone

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

•

RAID 1, RAID 5, RAID 10, Intel Rapid Storage Technology

15 and Intel Smart Response Technology), NCQ, AHCI and

Hot Plug*

* If M2_1 is occupied by a SATA-type M.2 device, SATA3_0 will

be disabled.

* If M2_2 is occupied by a SATA-type M.2 device, SATA3_1 will

be disabled.

* If M2_3 is occupied by a SATA-type M.2 device, SATA3_4

and SATA3_5 will be disabled.

* If M2_3 is occupied by a PCIe-type M.2 device, SATA3_4,

SATA3_5, SATA3_6 and SATA3_7 will be disabled.

1 x Ultra M.2 Socket (M2_2), supports M Key ty pe

•

2230/2242/2260/2280/22110 M.2 SATA3 6.0 Gb/s module

and M.2 PCI Express module up to Gen3 x4 (32 Gb/s)**

2 x Ultra M.2 Sockets (M2 _1 and M2_3), support M Key

•

type 2230/2242/2260/2280 M.2 SATA3 6.0 Gb/s module and

M.2 PCI Express module up to Gen3 x4 (32 Gb/s)**

** If PCIE4 slot is occupied, M2_2 slot will support M.2 PCI

Express module up to Gen3 x2 (16 Gb/s).

** Supports Intel® OptaneTM Tech nolo gy

** Supports NVMe SSD as boot disks

** Supports ASRock U.2 Kit

4

Connector

X299 Killer SLI/ac

1 x Virtual RAID On CPU Header

•

1 x TPM Header

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1 x Power LED and Speaker Header

•

2 x RGB LED Headers

•

* Support up to 12V/3A, 36W LED Strip

1 x CPU Fan Connector (4-pin)

•

* e CPU Fan Connector supports the CPU fan of ma ximum

1A (12W) fan power.

1 x CPU Optional/Water Pump Fan Connector (4-pin)

•

* e CPU Optional/Water Pump Fan supports the water cooler

fan of maximum 1.5A (18W) fan power.

2 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Con-

•

trol)

1 x Chassis Optional/Water Pump Fan Connector (4-pin)

•

* e Chassis Optiona l/Water Pump Fan supports the water

cooler fan of maximum 1.5A (18W) fan power.

* CHA_FAN1 and CHA _FAN2 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)

1 x 8 pin 12V Power Connector (Hi-Density Power Connec-

•

tor)

1 x Front Panel Audio Connector (15μ Gold Audio Connec-

•

tor)

1 x underbolt AIC Connector (5-pin)

•

3 x USB 2.0 Headers (Support 6 USB 2.0 ports) (Supports

•

ESD Protection)

1 x USB 3.0 Headers (Support 2 USB 3.0 ports) (Supports

•

ESD Protection)

BIOS
Feature

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,

•

VCCIO, VCCST, VCCSA, VCCSFR, VCCPLL, CLK VDD,

PEGRCOMP Voltage Multi-adjustment

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Temperature Sensing: CPU, CPU Optional/Water Pump,

Hardware
Monitor

•

Chassis, Chassis Optional/Water Pump Fans

Fan Tachometer: CPU, CPU Optional/Water Pump, Chassis,

•

Chassis Optional/Water Pump Fans

Quiet Fan (Auto adjust chassis fan speed by CPU tempera-

•

ture): CPU, CPU Optional/Water Pump, Chassis, Chassis

Optional/Water Pump Fans

Fan Multi-Speed Control: CPU, CPU Optional/Water Pump,

•

Chassis, Chassis Optional/Water Pump Fans

Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore, DRAM,

•

PCH 1.0V, VCCIO, VCCSA, VCCSFR

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)

•

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ATXP WR 1

X299 Killer S LI/ac

Ult ra M.2

PCIe Ge n3 x4

RGB_LED2

1

Intel

X299

ATX12V1

LAN

LAN

PCIE1

Top:

Central/Bass

Center:

REAR SPK

Top:

LINE IN

Center:

FRONT

Bottom:

Optical

SPDIF

Bottom:

MIC IN

PCIE3

HDLED RESET

PLED PWRBTN

PANEL1

1

USB_5_6

1

1

USB_7_8

1

HD_AUDIO1

PCIE5

SATA3_2_3

SATA3_4_5

PCIE4

CPU_FAN1

CPU_OPT/W_PUMP1

RoHS

9

8

10

12

13

14

SATA3_6_7

15

2122

19

27

26

CLRC
BTN1

SATA3_0_1

3

4

7

DDR4 _B2 (64 b it, 288 -pin mo dule)

DDR4 _B1 (64 b it, 288 -pin mo dule)

DDR4 _A2 (64 b it, 288 -pin mo dule)

DDR4 _A1 (64 b it, 288 -pin mo dule)

2

1

23

18

1

TPMS1

CLRMOS1

1

CHA_FAN1

CHA_FAN2

25

28

DDR4 _C1 (64 b it, 288 -pin mo dule)

DDR4 _C2 (64 b it, 288 -pin mo dule)

DDR4 _D1 (64 b it, 288 -pin mo dule)

DDR4 _D2 (64 b it, 288 -pin mo dule)

6

5

2066 Socket

Top:
RJ-45

USB 2.0
T: USB1
B: USB2

1

SPK_PLED1

M2_1

M2_3

USB 3.1
T: USB31_TA_1
B: USB31_TC_1

M2_2

VROC1

11

USB3_5_ 6

1

1

16

17

T B1

1

RGB_LED1

1

24

USB 3.0
T: USB1
B: USB2

USB 3.0
T: USB3
B: USB4

PCIE2

CHA_FAN3/
W_PUMP2

USB 2.0

T: USB3

B: USB4

PS2

Keybo ard

/Mous e

1

USB_9_10

20

BIOS_A1

BIOS

BIOS_B_LED1

BIOS_B1

BIOS

BIOS_A_LED1

M2_WIFI_1

Purity

Sound 4

TM

1.3 Motherboard Layout

X299 Killer SLI/ac

English

7

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 (ATX12V1)

4 CPU Fan / Waterpump Fan Connector (CPU_OPT/W_PUMP1)

5 2 x 288-pin DDR4 DIMM Slots (DDR4_C2, DDR4_D2)

6 2 x 288-pin DDR4 DIMM Slots (DDR4_C1, DDR4_D1)

7 CPU Fan Connector (CPU_FAN1)

8 RGB LED Header (RGB_LED2)

9 ATX Power Connector (ATXPWR1)

10 Virtual RAID On CPU Header (VROC1)

11 USB 3.0 Header (USB3_5_6)

12 SATA3 Connectors (SATA3_0_1)

13 SATA3 Connectors (SATA3_2_3)

14 SATA3 Connectors (SATA3_4_5)

15 SATA3 Connectors (SATA3_6_7)

16 Power LED and Speaker Header (SPK_PLED1)

17 Chassis Fan Connector (CHA_FAN1)

18 System Panel Header (PANEL1)

19 Chassis Fan / Waterpump Fan Connector (CHA_FAN3/W_PUMP2)

20 USB 2.0 Header (USB_9_10)

21 USB 2.0 Header (USB_7_8)

22 USB 2.0 Header (USB_5_6)

23 TPM Header (TPMS1)

24 underbolt AIC Header (TB1)

25 RGB LED Header (RGB_LED1)

26 Clear CMOS Jumper (CLRMOS1)

27 Front Panel Audio Header (HD_AUDIO1)

28 Chassis Fan Connector (CHA_FAN2)

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1.4 I/O Panel

1

X299 Killer SLI/ac

5

2

436

16

No. Description No. Description

1 USB 2.0 Port (USB_3_4) 9 USB 3.1 Type-A Port (USB31_TA_1)

2 LAN RJ-45 Port (Intel® I219V)* 10 USB 3.1 Type-C Port (USB31_TC_1)

3 Central / Bass (Orange) 11 USB 2.0 Ports (USB_1_2)

4 Rear Speaker (Black) 12 USB 3.0 Ports (USB3_1_2)

5 Line In (Light Blue) 13 USB 3.0 Ports (USB3_3_4)

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

7 Microphone (Pink) 15 Antenna Ports

8 Optical SPDIF Out Port 16 PS/2 Mouse/Keyboard Port (PS2_KB1)

* 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

1415

13

1112

10

789

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

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9

** If you use a 2- channel speaker, plea se connect the speake r’s plug into “Front Speaker Jack”. See the table below
for connection d etails in accordance w ith the type of speaker you use.

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

To enable Multi-Streaming, you need to connect a front panel audio cable to the front
panel audio header. Aer restarting your computer, you will nd the “Mixer” tool on your
system. Please select “Mixe r ToolBox” , click “Enable playback multi-streaming”, and
click “ok”. Choose “2CH”, “4CH”, “6CH”, or “8CH” and then you are allowed to select
“Realtek HDA Primary output” to u se the Rear Speaker, Central/Ba ss, and Front Speaker,
or select “Realtek HDA Audio 2nd output” to use the front panel audio.

Line In

(No. 5)

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10

X299 Killer SLI/ac

1.5 WiFi-802.11ac Module and ASRock WiFi 2.4/5 GHz Antenna

WiFi-802.11ac + BT Module

is motherboard comes with an exclusive WiFi 802.11 a/b/g/n/ac + BT v4.0

module (pre-installed on the rear I/O panel) that oers support for WiFi 802.11 a/b/

g/n/ac connectivity standards and Bluetooth v4.0. WiFi + BT module is an easy-to-

use wireless local area network (WLAN) adapter to support WiFi + BT. Bluetooth

v4.0 standard features Smart Ready technology that adds a whole new class of

functionality into the mobile devices. BT 4.0 also includes Low Energy Technology

and ensures extraordinary low power consumption for PCs.

* e transmission speed may vary according to the environment.

11

English

WiFi Antennas Installation Guide

Step 1

Prepare the WiFi 2.4/5 GHz Antennas that come

with the package.

Step 2

Connect the two WiFi 2.4/5 GHz Antennas to

the antenna connectors. Turn the antenna clock-

wise until it is securely connected.

Step 3

Set the WiFi 2.4/5 GHz Antenna as shown in the

illustration.

*You may need to adjust the direction of

the antenna for a stronger signal.

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12

X299 Killer SLI/ac

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.

13

English

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

English

14

A

2

B

X299 Killer SLI/ac

3

4

A

B

5

English

15

6

A

B

7

A

B

English

16

8

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.

2.2 Installing the CPU Fan and Heatsink

1 2

X299 Killer SLI/ac

FAN

CPU_

English

17

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 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

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Dual Channel Memory Conguration (For CPU with 16 PCIe lanes)

Priority 1 2

DDR4_D1

DDR4_D2

DDR4_C1

DDR4_C2

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 memor y 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 Technolog y is

activated.

Populated Populated

Populated

Populated Populated

Populated

X299 Killer SLI/ac

For CPU with 16 PCIe lanes, please install the memory modules on DDR4_C1, C2, D1

•

and D2 only.

1

2

3

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19

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 x4 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 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.

* If you install CPU with 16 lanes, PCIE1/PCIE2/PCIE3/PCIE5 will run at x16/x4/

x0/x0 or x8/x4/x8/x0.

* If PCIE4 slot is occupied, M2_2 slot will support M.2 PCI Express module up to

Gen3 x2 (16 Gb/s).

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20

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

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

PCIe Slot Congurations (For CPU with 16 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

For a better ther mal environment, please connect a ch assis fan to the motherboard’s |
chassis fan connector (CHA_ FAN1, CHA_FAN2 or CHA_ FAN3) when using multiple
graphics cards.

x8 N/A x8 N/A N/A

X299 Killer SLI/ac

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English

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”. e illustration shows a 3-pin jumper whose pin1 and pin2 are “Short”

when a jumper cap is placed on these 2 pins.

Clear CMOS Jumper

(CLRMO S1)

(see p.7, No. 26)

CLRMOS1 allows you to clear the data in CMOS. To clear and reset the system

parameters to default setup, please turn o the computer and unplug the power

cord from the power supply. Aer waiting for 15 seconds, use a jumper cap to

short pin2 and pin3 on CLRMOS1 for 5 seconds. However, please do not clear the

CMOS right aer you update the BIOS. 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. Please be noted that the password,

date, time, and user default prole will be cleared only if the CMOS battery is

removed.

Clear CMOSDefault

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22

2.6 Onboard Headers and Connectors

1

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 Killer SLI/ac

System Panel Header

(9-pi n PANEL1)

(see p.7, No. 18)

PWRBTN (Power Switch):

Connec t to the power switch on the chassi s front panel. You may congure the way to tur n
o your system using the power switch.

RESET (Reset Switch):
Connec t to the reset switch on the chassi s front panel. Press the reset sw itch 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
switch, reset switch , 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.

PLED+

PLED-

HDLED-

HDLED+

PWRBTN#

GND

GND

RESET#

GND

Connect the power

switch, reset switch 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.

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23

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.7, No. 16)

Please connect the

chassis power LED and

the chassis speaker to this

header.

English

Serial ATA3 Connectors

(SATA3_0_1:

see p.7, No. 12)

(SATA3_2_3:

see p.7, No. 13)

(SATA3_4_5:

see p.7, No. 14)

(SATA3_ 6_7:

see p.7, No. 15)

USB 2.0 Headers

(9-pin USB_5_6)

(see p.7, No. 22)

(9-pin USB_7_8)

(see p.7, No. 21)

(9-pin USB_9_10)

(see p.7, No. 20)

SATA3_0

SATA3_2

SATA3_4

SATA3_6

ese eight SATA3

connectors support SATA

data cables for internal

SATA3_1

storage devices with up to

6.0 Gb/s data transfer rate.

SATA3_3

* If M2_1 is occupied by

a SATA-type M.2 device,

SATA3_0 will be disabled.

SATA3_5

* If M2_2 is occupied by

a SATA-type M.2 device,

SATA3_1 will be disabled.

SATA3_7

* If M2_3 is occupied by

a SATA-type M.2 device,

SATA3_4 and SATA3_5

will be disabled.

* If M2_3 is occupied by

a PCIe-ty pe M.2 device,

SATA3_4, SATA3_5,

SATA3_6 and SATA3_7

will be disabled.

ere are three headers

on this motherboard.

Each USB 2.0 header can

support two ports.

24