User Manual
Table Of Contents
- Safety information
- Chapter 1: Product Introduction
- Chapter 2: Basic Installation
- Chapter 3: BIOS Setup
- 3.1 Knowing BIOS
- 3.2 BIOS setup program
- 3.3 My Favorites
- 3.4 Main menu
- 3.5 Ai Tweaker menu
- 3.6 Advanced menu
- 3.6.1 CPU Configuration
- 3.6.2 Platform Misc Configuration
- 3.6.3 System Agent (SA) Configuration
- 3.6.4 PCH Configuration
- 3.6.5 PCH Storage Configuration
- 3.6.6 CPU Storage Configuration
- 3.6.7 Onboard Devices Configuration
- 3.6.8 APM Configuration
- 3.6.9 Network Stack Configuration
- 3.6.10 HDD/SSD SMART Information
- 3.6.11 USB Configuration
- 3.6.12 Thunderbolt(TM) Configuration
- 3.6.13 PCH-FW Configuration
- 3.7 Monitor menu
- 3.8 Boot menu
- 3.9 Tool menu
- 3.10 Exit menu
- 3.11 Updating BIOS
- Chapter 4: RAID Support
- Appendix

ASUS PRIME X299-A Series
1-7
Chapter 1
1.1.5 Expansion slots
Unplugthepowercordbeforeaddingorremovingexpansioncards.Failuretodosomay
causeyouphysicalinjuryanddamagemotherboardcomponents.
Slot No. Slot Description
1 PCIE3.0/2.0x16_1slot
2 PCIE3.0/2.0x1_1slot
3 PCIE3.0/2.0x4_1slot
4 PCIE3.0/2.0x16_2slot
5 PCIE3.0/2.0x4_2slot
6 PCIE3.0/2.0x16_3slot