https://www.gigabyte.com/tw/Motherboard/B550M-K-rev-10?m=ma#kf
B550M K
Rev. 1001
© 2023
https://download.gigabyte.com/FileList/Manual/mb_manual_installation-guide_103.pdf?m=sw
https://www.gigabyte.com/tw
REV : X.X X.X
REV : 1.0 1.0 BIOS
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.......................................................................................................4
1-1 .................................................................................................. 4
1-2 .......................................................................................................... 5
.......................................................................................................6
2-1 ......................................................................................... 6
2-2 .......................................................................................................... 7
2-3 ........................................................................................... 10
2-4 ........................................................................................... 11
2-5 .................................................................................................... 12
2-6 ....................................................................................... 13
2-7 ........................................................................................... 15
BIOS ............................................................................................23
.......................................................................25
4-1 ................................................................................................ 25
4-2 ................................................................................................ 26
..............................................................................................................27
5-1 ................................................................................................ 27
Regulatory Notices ...................................................................................................... 28
....................................................................... 30
............................................................................................. 31
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1-1
KB_MS_USB
CPU_FAN
ATX
AUDIO
DDR4_A1
DDR4_B2
BAT
ATX_12V
AMD
B550
DP_HDMI
CODEC
M_BIOS
PCIEX16
iTE®
Super I/O
Realtek®
GbE LAN
F_U32
F_USB1 F_PANEL
TPM
USB_LAN
Socket AM4
U32X4
CLR_CMOS
M2A_CPU
M2B_SB
80
80
0 3
1 2
SATA3
DDR4_A2
DDR4_B1
SYS_FAN1
F_AUDIO
PCIEX1
B550M K
- 5 -
1-2
5B550M K - 1
5- 1
5SATA - 1
5I/O - 1
*
2-1
•
•
•
•
•
•(CPU)
•
•
•
•
•
•
•
•
•
•
•
- 6 -
(CPU) AMD AM4
AMD Ryzen™ 5000 G /
AMD Ryzen™ 5000 /
AMD Ryzen™ 4000 G /
AMD Ryzen™ 3000
( )
AMD B550
4D DR4 DIMM 128 GB ( 32 GB )
DDR4 3200/2933/2667/2400/2133 MT/s
ECC Un-buffered DIMM 1Rx8/2Rx8
non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16
Extreme Memory Prole (XMP)
( )
- 1D isplayPort 5120x2880@60 Hz
* DisplayPort 1.4 HDCP 2.3 HDR
- 1H DMI 4096x2160@60 Hz
* HDMI 2.1 HDCP 2.3 HDR
16 GB
Realtek®
High Denition Audio
2/4/5.1/7.1
* 7.1
Realtek® GbE (1 Gbps/100 Mbps)
1P CI Express x16 CPU
- AMD Ryzen™ 5000 /3000 PCIe 4.0 x16
- AMD Ryzen™ 5000 G /4000 G PCIe 3.0 x16
1P CI Express x1
- PCIe 3.0 x1
1 M.2 (M2A_CPU) CPU Socket 3 M key type 2280 SSD
- AMD Ryzen™ 5000 /3000 SATA PCIe 4.0 x4/x2 SSD
- AMD Ryzen™ 5000 G /4000 G SATA PCIe 3.0 x4/x2
SSD
1 M.2 (M2B_SB) Socket 3 M key type 2280 SSD
- PCIe 3.0 x2 SSD
4 SATA 6Gb/s
- RAID 0 RAID 1 RAID 10
2-2
- 7 -
USB CPU
- 4 USB 3.2 Gen 1
- 2 USB 3.2 Gen 1 USB
- 6 USB 2.0/1.1 (4 2
USB )
1 24-pin ATX
1 8-pin ATX 12V
1 CPU
1
2M .2 Socket 3
4 SATA 6Gb/s
1
1
1 USB 3.2 Gen 1
1 USB 2.0/1.1
1 (TPM) (2x6 pin GC-TPM2.0_S )
1 CMOS
1P S/2 /
1D isplayPort
1H DMI
4 USB 3.2 Gen 1
4 USB 2.0/1.1
1R J-45
3
I/O iTE® I/O
*
BIOS 1 128 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
- Smart Backup
- System Information Viewer
Q-Flash
Xpress Install
- 8 -
Norton® Internet Security (OEM )
LAN bandwidth management software
Windows 11 64-bit
Windows 10 64-bit
Micro ATX 24.4 x 24.4
*
&SSD M.2
https://www.gigabyte.com/tw/Motherboard/B550M-K-rev-10?m=dl#support-dl
&/ \
https://www.gigabyte.com/tw/Support/Utility/Motherboard?m=ut
- 9 -
2-3
(CPU)
•CPU
( CPU )
•CPU
•CPU CPU CPU
•CPU
•CPU CPU
•CPU
CPU
(CPU)
CPU CPU ( ) CPU
( ) CPU CPU
CPU CPU CPU CPU
&
http://www.gigabyte.com/WebPage/210/quick-guide.html?m=sw
AM4 CPU
CPU
AM4 CPU
CPU
- 10 -
4 (Dual Channel Technology)
BIOS
4 (Channel)
A (Channel A) DDR4_A1 DDR4_A2
B (Channel B) DDR4_B1 DDR4_B2
2-4
•
( )
•
•
DDR4_A1 DDR4_A2 DDR4_B1 DDR4_B2
2 - - DS/SS - - DS/SS
4 DS/SS DS/SS DS/SS DS/SS
(SSDS--)
CPU
1.
2. (
)
DDR4_A2DDR4_B2
DDR4_A1
DDR4_A2
DDR4_B1
DDR4_B2
- 11 -
2-5
•
•
1.
2.
3.
4.
5.
6. BIOS
7.
PCIEX16
- 12 -
2-6
USB 2.0/1.1
USB 2.0/1.1 USB
PS/2 /
PS/2
DisplayPort ( )
DisplayPort DisplayPort
DPCP HDCP 2.3 Rec.2020 ( ) UHD
(HDR) 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
DisplayPort/HDMI DisplayPort/HDMI (
)
USB 3.2 Gen 1
USB 3.2 Gen 1 USB 2.0 USB
(RJ-45)
(Gigabit Ethernet)
1 GB (1 Gbps)
( ) AMD Ryzen™ 5000 G /4000 G
/ ( )
/ ( )
/ ( )
1 Gbps
100 Mbps
10 Mbps
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/2 4 5.1 7.1
/a a a
/aa a a
/a a
/ a
&
https://www.gigabyte.com/WebPage/697/realtek897-audio.html
7.1
•
•
- 14 -
2-7
•
•
•
1) ATX_12V
2) ATX
3) CPU_FAN
4) SYS_FAN1
5) SATA3 0/1/2/3
6) M2A_CPU/M2B_SB
7) F_AUDIO
8) F_PANEL
9) F_U32
10) F_USB1
11) TPM
12) BAT
13) CLR_CMOS
1
2
3
97 114
6
12
5
10 8 513
6
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DEBUG
PORT
G.QBOFM
131
24
12
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-p in
)
12 3.3V ( 2x12-pin
)
24 ( 2x12-pi n
)
ATX_12V
1 ( 2x4 -p i n
)
5 +12V (2x4-p in
)
2 ( 2x4 -p i n
)
6 +12V (2x4-p in
)
3 7 +12V
4 8 +12V
DEBUG
PORT
G.QBOFM
ATX_12V
41
85
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•CPU
CPU
•
3/4) CPU_FAN/SYS_FAN1 ( )
4-pin (
) CPU CPU
1
2
3
4
DEBUG
PORT
G.QBOFM
1
5) 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
SATA3
SATA3
0 1
3
2
DEBUG
PORT
G.QBOFM
DEBUG
PORT
G.QBOFM
1 7
1
1
7
7
DEBUG
PORT
G.QBOFM
- 17 -
6) M2A_CPU/M2B_SB (M.2 Socket 3 )
M.2 SSD M.2 SATA SSD M.2 PCIe SSD M.2 M.2
RAID M.2 PCIe SSD SATA
RAID
M.2 SSD M.2
M.2 M.2 SSD
M.2 SSD M.2
M2A_CPU
M2B_SB
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_
_S
SS_F
_
_ F
_SB
80
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_
_S
SS_F
_
_ F
_SB
80
7) F_AUDIO ( )
HD (High Denition )
1 MIC L
2
3 MIC R
4
5 Head Phone R
6
7 SENSE_SEND
8
9 Head Phone L
10
1
2
9
10
- 18 -
8) F_PANEL ( )
/
(+/-)
S0
S3/S4/S5
•PW
BIOS (
BIOS Settings\Platform Power )
•SPEAK
•HD
•RES
(Reset)
•CI
/
•NC
•PLED/PWR_LED
(S3/S4) (S5)
SPEAK+
SPEAK-
NC
NC
1
2
19
20
CI-
CI+
PLED-
PW-
PLED+
PW+
HD-
RES+
HD+
RES-
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_
_S
SS_F
_
_ F
_SB
PWR_LED-
PWR_LED+
PWR_LED-
- 19 -
1 VBUS 11 D2+
2 SSRX1- 12 D2-
3 SSRX1+ 13
4 14 SSTX2+
5 SSTX1- 15 SSTX2-
6 SSTX1+ 16
7 17 SSRX2+
8 D1- 18 SSRX2-
9 D1+ 19 VBUS
10 20
9) 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_
_S
SS_F
_
_ F
_SB
10
11
1
20
10) F_USB1 (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
USB
USB
10
9
2
1
- 20 -
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