B550M AORUS PRO AX
Rev. 1001
12MC-B55MAPW-1001R
© 2021
https://www.gigabyte.com/tw
REV : X.X X.X
REV : 1.0 1.0 BIOS
- 3 -
B550M AORUS PRO AX ......................................................................4
.......................................................................................................5
1-1 ......................................................................................... 5
1-2 .......................................................................................................... 6
1-3 ............................................................................................. 9
1-4 ............................................................................................. 9
1-5 .................................................................................................... 10
1-6 ....................................................................................... 10
1-7 ........................................................................................... 12
BIOS ............................................................................................21
2-1 ........................................................................................................ 21
2-2 BIOS ................................................................................... 22
2-3 Favorites (F11) () ............................................................................. 23
2-4 Tweaker (/) .............................................................................. 24
2-5 Settings () ................................................................................................. 27
2-6 System Info. () ................................................................................. 32
2-7 Boot () ..................................................................................... 33
2-8 Save & Exit () ............................................... 36
..............................................................................................................37
3-1 ................................................................................................ 37
3-2 ................................................................................................ 39
Regulatory Notices ...................................................................................................... 40
....................................................................... 43
............................................................................................. 44
- 4 -
B550M AORUS PRO AX
5B550M AORUS PRO AX - 1 5SATA - 2
5- 1 5- 1
5- 1
*
USB20
DP_HDMI
U32G2C
U32_2
U32_1
QFLASH_PLUS
U32G2_LAN
ATX
AUDIO
DDR4_A1
DDR4_A2
DDR4_B1
DDR4_B2
ATX_12V
AMD B550
CLR_CMOS
M_BIOS
PCIEX2
PCIEX16
SYS_FAN2
CODEC
B550M AORUS PRO AX
F_PANEL
F_USB2
F_U32
SYS_FAN3 F_USB1
D_LED2 LED_C2
F_AUDIO
SYS_FAN1
LED_CPU
CPU_OPT
iTE®
Super I/O
M2A_CPU
4280110
M2B_SB
4280
SATA3
2 0
3 1
BAT
Realtek® 2.5GbE
LAN
Socket AM4
CPU_FAN
60
60
TPM
COM
USB 2.0 Hub
PCIEX1
QFLED
M2_WIFI
F_U32C
LED_C1
D_LED1
USB 2.0 Hub
1-1
•
•
•
•
•
•(CPU)
•
•
•
•
•
•
•
•
•
•
•
- 5 -
1-2
(CPU) AMD AM4
AMD Ryzen™/
AMD Ryzen™Radeon™
( )
AMD B550
4 D DR4 DIMM 128 GB ( 32 GB )
DDR4 3200/2933/2667/2400/2133 MHz
ECC Un-buffered DIMM 1Rx8/2Rx8
non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16
Extreme Memory Prole (XMP)
( )
AMD Ryzen™Radeon™
- 1H DMI 4096x2160@60 Hz
* HDMI 2.1 HDCP 2.3 HDR
- 1D isplayPort 5120x2880@60 Hz
* DisplayPort 1.4 HDCP 2.3 HDR
16 GB
Realtek® ALC1200
High Denition Audio
2/4/5.1/7.1
S/PDIF
Realtek® 2.5GbE (2.5 Gbit/1 Gbit/100 Mbit)
Intel® Wi-Fi 6 AX200
- WIFI a, b, g, n, ac, ax 2.4/5 GHz
- BLUETOOTH 5.1
- 11ax 160MHz 2.4 Gbps
*
1P CI Express x16 (PCIEX16) CPU
- AMD Ryzen™PCIe 4.0 x16
- AMD Ryzen™Radeon™PCIe 3.0 x16
* PCIEX16
1P CI Express x16 (PCIEX2)
- PCIe 3.0 x2
1P CI Express x1 (PCIEX1)
- PCIe 3.0 x1
1 M.2 (M2A_CPU) CPU Socket 3 M key type 2242/2260/
2280/22110 SSD
- AMD Ryzen™SATA PCIe 4.0 x4/x2 SSD
- AMD Ryzen™Radeon™SATA PCIe
3.0 x4/x2 SSD
- 6 -
1 M.2 (M2B_SB) Socket 3 M key type 2242/2260/
2280 SSD
- SATA PCIe 3.0 x4/x2 SSD
4 SATA 6Gb/s
- RAID 0 RAID 1 RAID 10
USB CPU
- 3 USB 3.2 Gen 1
- 1 USB 3.2 Gen 2 Type-A ( )
CPU+1 USB 2.0 Hub
- 2 USB 2.0/1.1
- 1 USB Type-C®USB 3.2 Gen 2
- 1 USB Type-C®USB 3.2 Gen 1
USB )
- 2 USB 3.2 Gen 1 USB
- 3 USB 2.0/1.1 (2 1
USB )
+1 USB 2.0 Hub
- 3 USB 2.0/1.1 USB
1 24-pin ATX
1 8-pin ATX 12V
1 CPU
1 CPU
3
2 LED
2R GB LED
1 /RGB LED
2M .2 Socket 3
4 SATA 6Gb/s
1
1
1 USB Type-C®USB 3.2 Gen 1
1 USB 3.2 Gen 1
2 USB 2.0/1.1
1
1 (TPM) (2x6 pin GC-TPM2.0_S )
1 CMOS
4 USB 2.0/1.1
2 SMA (2T2R)
1D isplayPort
1H DMI
3 USB 3.2 Gen 1
1 USB 3.2 Gen 2 Type-A ( )
1 USB Type-C®USB 3.2 Gen 2
- 7 -
1 Q-Flash Plus
1R J-45
1 S/PDIF
5
I/O iTE® I/O
*
BIOS 1 256 Mbit flash
AMI UEFI BIOS
PnP 1.0a DMI 2.7 WfM 2.0 SM BIOS 2.7 ACPI 5.0
APP Center
* APP Center
- @BIOS
- EasyTune
- Fast Boot
- Game Boost
- ON/OFF Charge
- RGB Fusion
- Smart Backup
- System Information Viewer
Q-Flash Plus
Q-Flash
Xpress Install
Norton® Internet Security (OEM )
Realtek® 8125 Gaming LAN Bandwidth Control Utility
Windows 10 64-bit
Micro ATX 24.4 x 24.4
*
SSD M. 2
\
- 8 -
1-3
1-4
•
( )
•
•
4 (Dual Channel Technology)
BIOS
4 (Channel)
A (Channel A) DDR4_A1 DDR4_A2
B (Channel B) DDR4_B1 DDR4_B2
(CPU)
•CPU
( CPU )
•CPU
•CPU CPU CPU
•CPU
•CPU CPU
•CPU
CPU
(CPU)
CPU CPU ( ) CPU
( ) CPU CPU
AM4 CPU AM4 CPU
CPU
CPU
CPU CPU CPU CPU
- 9 -
1-5
•
•
1-6
USB 2.0/1.1
USB 2.0/1.1 USB
DisplayPort ( )
DisplayPort DisplayPort HDCP
2.3 DisplayPort DisplayPort
5120x2880@60 Hz
HDMI ( )
HDCP 2.3 Dolby TrueHD DTS HD Master
Audio 192KHz/24bit 7.1-channel LPCM
HDMI HDMI 4096x2160@60 Hz
USB 3.2 Gen 1
USB 3.2 Gen 1 USB 2.0 USB
Q-Flash Plus ( )
Q-Flash Plus (S5 ) BIOS Q-Flash Plus
USB Q-Flash Plus QFLED (
) QFLED BIOS
USB 3.2 Gen 1 (Q-Flash Plus )
USB 3.2 Gen 1 USB 2.0 USB
Q-Flash Plus ( ) USB
DisplayPort/HDMI DisplayPort/HDMI (
)
•
•
CPU
1.
2. (
)
DDR4_A1 DDR4_A2 DDR4_B1 DDR4_B2
2- - DS/SS - - DS/SS
4 DS/SS DS/SS DS/SS DS/SS
(SSDS--)
- 10 -
USB 3.2 Gen 2 Type-A ( )
USB 3.2 Gen 2 USB 3.2 Gen 1 USB 2.0 USB
USB Type-C®
USB 3.2 Gen 2 USB 3.2 Gen 1 USB 2.0
USB
SMA (2T2R)
/2 4 5.1 7.1
a a
a a a
/a
/a a a a
/a
(RJ-45)
(Gigabit Ethernet)
2.5 GB (2.5 Gbps)
( ) AMD Ryzen™Radeon™
( ) Q-Flash Plus
//
2.5 Gbps
1 Gbps
100 Mbps
S/PDIF
/
/
/
- 11 -
1-7
•
•
•
1) ATX_12V
2) ATX
3) CPU_FAN
4) SYS_FAN1/2/3
5) CPU_OPT
6) D_LED1/D_LED2
7) LED_CPU
8) LED_C1/LED_C2
9) SATA3 0/1/2/3
10) M2A_CPU/M2B_SB
11) F_PANEL
12) F_AUDIO
13) F_U32C
14) F_U32
15) F_USB1/F_USB2
16) TPM
17) COM
18) CLR_CMOS
19) BAT
15
2
4
9
4 18 11612
1
4
168
7
10
3 6 85
17 19
10 13
14
- 12 -
DEBUG
PORT
G.QBOFM
131
2412
ATX
1/2) ATX_12V/ATX (2x4-pin 12V 2x12-pin )
12V CPU 12V
(500 )
ATX
1 3.3V 13 3.3V
2 3.3V 14 -12V
3 15
4 +5V 16 PS_ON (soft On/Off)
5 17
6 +5V 18
7 19
8 Power Good 20
9 5VSB (stand by +5V) 21 +5V
10 +12V 22 +5V
11 +12V ( 2x12-pin
)
23 +5V ( 2x12-pi n
)
12 3.3V ( 2x12-pin
)
24 ( 2x12-pin
)
ATX_12V
1 ( 2x4-pin
)
5 +12V ( 2x4-p in
)
2 ( 2x4-pin
)
6 +12V ( 2x4-p in
)
3 7 +12V
4 8 +12V
DEBUG
PORT
G.QBOFM
ATX_12V
41
85
3/4) CPU_FAN/SYS_FAN1/2/3 ( )
4-pin (
)
CPU_FAN/SYS_FAN1 SYS_FAN2
DEBUG
PORT
G.QBOFM
1
DEBUG
PORT
G.QBOFM
1
1
2
3
4
SYS_FAN3
DEBUG
PORT
G.QBOFM
1
•CPU
CPU
•
CPU_FAN SYS_FAN1/2/3
2A 2A
24W 24W
- 13 -
5) CPU_OPT (CPU )
4-pin ( )
DEBUG
PORT
G.QBOFM
11
2
3
4
•CPU
CPU
•
6) D_LED1/D_LED2 ( LED )
5050 LED 5 (5 ) LED 1000
1 V (5V)
2 Data
3
4
1 1
LED
( ) 1
F_USB30 F_U
B_
F_ F_
_
B
BS_
B
SB_
B
_S
S_
_
B
_U
_
B
S
123
123
123
123
1
1
1
1
BSS
S
_S
SSU
1 2 3
S3 BSSS
U
__ 3
F_USB3F
S _
S _
S _
SF
B_
B_
F
_0
S
S
_0F
_F
_
_
__B
U
S _S
_ SF_
B
USB0_B
B_
B_
F_USB3
F_USB303
_
_3U
S_
F_USB30 F_U
B_
F_ F_
_
B
BS_
B
SB_
B
_S
S_
_
B
_U
_
B
S
123
123
123
123
1
1
1
1
BSS
S
_S
SSU
1 2 3
S3 BSSS
U
__ 3
F_USB3F
S _
S _
S _
SF
B_
B_
F
_0
S
S
_0F
_F
_
_
__B
U
S _S
_ SF_
B
USB0_B
B_
B_
F_USB3
F_USB303
_
_3U
S_
D_LED1 D_LED2
7) LED_CPU ( /RGB LED )
5050 RGB LED (12V/G/R/B) 2 (12 )
2
1 12V
2 G
3 R
4 B
RGB LED
( ) 1 (12V)
LED
1
RGB LED
1
12V
1
DEBUG
PORT
G.QBOFM
- 14 -
9) SATA3 0/1/2/3 (SATA 6Gb/s )
SATA SATA 6Gb/s SATA 3Gb/s SATA 1.5Gb/s SATA
SATA RAID 0 RAID 1 RAID 10 RAID
1
2 TXP
3 TXN
4
5 RXN
6 RXP
7
1
1
SATA3 2 0
3 1
7
7
DEBUG
PORT
G.QBOFM
DEBUG
PORT
G.QBOFM
8) LED_C1/LED_C2 (RGB LED )
5050 RGB LED (12V/G/R/B) 2 (12 ) 2
1 12V
2 G
3 R
4 B
1
LED_C2
1
LED_C1
DEBUG
PORT
G.QBOFM
DEBUG
PORT
G.QBOFM
( ) 1 (12V)
RGB LED
1
12V
- 15 -
10) M2A_CPU/M2B_SB (M.2 Socket 3 )
M.2 M.2 SATA SSD M.2 PCIe SSD RAID
M.2 PCIe SSD M.2 SATA SSD SATA
RAID
F_USB30 F_U
B_
F_ F_
_
B
BS_
B
SB_
B
_S
S_
_
B
_U
_
B
S
123
123
123
123
1
1
1
1
BSS
S
_S
SSU
1 2 3
S3 BSSS
U
__ 3
F_USB3F
S _
S _
S _
SF
B_
B_
F
_0
S
S
_0F
_F
_
_
__B
U
S _S
_ SF_
B
USB0_B
B_
B_
F_USB3
F_USB303
_
_3U
S_
80110 60 42
F_USB30 F_U
B_
F_ F_
_
B
BS_
B
SB_
B
_S
S_
_
B
_U
_
B
S
123
123
123
123
1
1
1
1
BSS
S
_S
SSU
1 2 3
S3 BSSS
U
__ 3
F_USB3F
S _
S _
S _
SF
B_
B_
F
_0
S
S
_0F
_F
_
_
__B
U
S _S
_ SF_
B
USB0_B
B_
B_
F_USB3
F_USB303
_
_3U
S_
80 60 42
M2A_CPU
M2B_SB
M.2 SSD M.2
M.2 SSD M.2 ( M2A_CPU )
M.2 SSD M.2 SSD
M.2 SSD
- 16 -
11) F_PANEL ( )
/
(+/-)
S0
S3/S4/S5
•PW
BIOS
( BIOS
Settings\Platform Power )
•SPEAK
•PLED/PWR_LED
(S3/S4)
(S5)
•HD
•RES
(Reset)
•CI
/
•NC
DEBUG
PORT
G.QBOFM
1
2
19
20
CI-
CI+
PWR_LED-
PWR_LED+
PLED-
PW-
SPEAK+
SPEAK-
PLED+
PW+
HD-
RES+
HD+
RES-
PWR_LED-
NC
NC
12) F_AUDIO ( )
HD (High Denition )
F_USB30 F_U
B_
F_ F_
_
B
BS_
B
SB_
B
_S
S_
_
B
_U
_
B
S
123
123
123
123
1
1
1
1
BSS
S
_S
SSU
1 2 3
S3 BSSS
U
__ 3
F_USB3F
S _
S _
S _
SF
B_
B_
F
_0
S
S
_0F
_F
_
_
__B
U
S _S
_ SF_
B
USB0_B
B_
B_
F_USB3
F_USB303
_
_3U
S_
9 1
10 2
1 MIC2_L 6
2 7 FAUDIO_JD
3 MIC2_R 8
4 9 LINE2_L
5 LINE2_R 10
- 17 -
1 VBUS 8 D1- 15 SSTX2-
2 SSRX1- 9 D1+ 16
3 SSRX1+ 10 17 SSRX2+
4 11 D2+ 18 SSRX2-
5 SSTX1- 12 D2- 19 VBUS
6 SSTX1+ 13 20
7 14 SSTX2+
14) F_U32 (USB 3.2 Gen 1 )
USB 3.2 Gen 1/USB 2.0 USB 2
USB 3.2 Gen 1 3.5
F_USB30 F_U
B_
F_ F_
_
B
BS_
B
SB_
B
_S
S_
_
B
_U
_
B
S
123
123
123
123
1
1
1
1
BSS
S
_S
SSU
1 2 3
S3 BSSS
U
__ 3
F_USB3F
S _
S _
S _
SF
B_
B_
F
_0
S
S
_0F
_F
_
_
__B
U
S _S
_ SF_
B
USB0_B
B_
B_
F_USB3
F_USB303
_
_3U
S_
1
15) F_USB1/F_USB2 (USB 2.0/1.1 )
USB 2.0/1.1 USB USB USB
1 (5V) 6 USB DY+
2 (5V) 7
3 USB DX- 8
4 USB DY- 9
5 USB DX+ 10
•2x5-pin IEEE 1394 USB 2.0/1.1
•USB
USB
DEBUG
PORT
G.QBOFM
10
9
2
1
20
10
11
F_USB30 F_U
B_
F_ F_
_
B
BS_
B
SB_
B
_S
S_
_
B
_U
_
B
S
123
123
123
123
1
1
1
1
BSS
S
_S
SSU
1 2 3
S3 BSSS
U
__ 3
F_USB3F
S _
S _
S _
SF
B_
B_
F
_0
S
S
_0F
_F
_
_
__B
U
S _S
_ SF_
B
USB0_B
B_
B_
F_USB3
F_USB303
_
_3U
S_
13) F_U32C (USB Type-C®USB 3.2 Gen 1)
USB 3.2 Gen 1 USB
1 VBUS 8 CC1 15 RX2+
2 TX1+ 9 SBU1 16 RX2-
3 TX1- 10 SBU2 17
4 11 VBUS 18 D-
5 RX1+ 12 TX2+ 19 D+
6RX1- 13 TX2- 20 CC2
7 VBUS 14
20
10 11
1
- 18 -
16) TPM ( )
TPM (Trusted Platform Module)
1LAD0 7LAD3
2VCC3 8
3LAD1 9LFRAME
4 10
5LAD2 11 SERIRQ
6LCLK 12 LRESET
F_USB30 F_U
B_
F_ F_
_
B
BS_
B
SB_
B
_S
S_
_
B
_U
_
B
S
123
123
123
123
1
1
1
1
BSS
S
_S
SSU
1 2 3
S3 BSSS
U
__ 3
F_USB3F
S _
S _
S _
SF
B_
B_
F
_0
S
S
_0F
_F
_
_
__B
U
S _S
_ SF_
B
USB0_B
B_
B_
F_USB3
F_USB303
_
_3U
S_
12
11
2
1
10
9
2
1
17) COM ( )
1 NDCD- 6 NDSR-
2 NSIN 7 NRTS-
3 NSOUT 8 NCTS-
4 NDTR- 9 NRI-
5 10
18) CLR_CMOS ( CMOS )
BIOS CMOS
•CMOS
•BIOS (Load Optimized Defaults) (
BIOS )
CMOS
- 19 -
19) BAT ( )
CMOS ( BIOS )
CMOS
CMOS
1.
2. (
)
3.
4.
•
•
•
•(+) (-) ( )
•
- 20 -
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