20
Overview of Components
24
13
1
12
ATX_PWR1
1
+3.3V
13
+3.3V
2
+3.3V
14
-12V
3
Ground
15
Ground
4
+5V
16
PS-ON#
5
Ground
17
Ground
6
+5V
18
Ground
7
Ground
19
Ground
8
PWR OK
20
Res
9
5VSB
21
+5V
10
+12V
22
+5V
11
+12V
23
+5V
12
+3.3V
24
Ground
5
4
1
8
CPU_PWR1
1
Ground
5
+12V
2
Ground
6
+12V
3
Ground
7
+12V
4
Ground
8
+12V
⚠
Important
Make sure that all the power cables are securely connected to a proper ATX power
supply to ensure stable operation of the motherboard.
CPU_PWR1, ATX_PWR1: Power Connectors
These connectors allow you to connect an ATX power supply.
Summary of Contents for B550-A PRO
Page 10: ...X Quick Start Connecting Peripheral Devices Processor with Radeon Graphics...
Page 11: ...XI Quick Start Power On 4 3 1 2...
Page 12: ...XII Quick Start NOTE...
Page 52: ...NOTE...
Page 54: ...2 OS 29 Windows 10 29 29 29 UEFI BIOS 30 BIOS 31 BIOS 31 BIOS 32 BIOS 32 EZ 34 37 OC 38...
Page 55: ...3 ESD PC ESD ESD PC PC PC PC PC PC 60OC 140OF...
Page 61: ...9 B550 A PRO SATA 6G 2 1 M 2 3 pcs 1 1 1 DVD 1 1 MSI 1...
Page 63: ...11 I O PC Realtek Realtek...
Page 64: ...12 I O AUDIO INPUT Rear Front Side Center Subwoofer AUDIO INPUT 7 1...
Page 80: ...28 EZ Debug LED LED CPU CPU DRAM DRAM VGA GPU PCIE M 2 BOOT LED_SW1 EZ LED LED LED_OFF LED_ON...
Page 92: ...NOTE...
Page 94: ...2 OS 29 Windows 10 29 29 29 UEFI BIOS 30 BIOS 31 BIOS 31 BIOS 32 BIOS 32 EZ 34 37 OC 38...
Page 95: ...3 ESD ESD ESD PSU PSU 60 C 140 F...
Page 101: ...9 B550 A PRO SATA 6G 2 1 M 2 3 pcs 1 1 1 DVD 1 1 MSI 1...
Page 103: ...11 I O Realtek Realtek...
Page 104: ...12 I O AUDIO INPUT Rear Front Side Center Subwoofer AUDIO INPUT 7 1...
Page 106: ...14 AM4 CPU CPU AM4 CPU 1 53 8 mm CPU DIMM AM4 BIOS CPU CPU CPU CPU CPU CPU CPU CPU CPU...
Page 120: ...28 EZ LED LED LED_SW1 EZ LED LED LED_ LED_ CPU CPU DRAM DRAM VGA GPU PCIE M 2 BOOT...
Page 127: ...35 UEFI BIOS CPU DDR CPU MB MB CPU CPU DDR BIOS CPU Help ON M M USB BIOS F3 BIOS BIOS 5...
Page 128: ...36 UEFI BIOS BIOS 1 BIOS BIOS 2 F2 3 OK BIOS 1 BIOS 2 F2 3 Delete OK...
Page 132: ...NOTE...
Page 134: ...2 29 Windows 10 29 29 29 UEFI BIOS 30 BIOS 31 BIOS 31 BIOS 32 BIOS 32 EZ 34 37 OC 38...
Page 135: ...3 ESD 60 C 140 F...
Page 141: ...9 B550 A PRO SATA 6G 2 1 M 2 3 1 1 1 DVD 1 1 MSI 1...
Page 143: ...11 I O Realtek Realtek...
Page 144: ...12 I O AUDIO INPUT Rear Front Side Center Subwoofer AUDIO INPUT 7 1...
Page 146: ...14 AM4 AM4 CPU 53 8 mm CPU DIMM AM4 BIOS CPU CPU CPU CPU CPU CPU CPU MSI...
Page 160: ...28 EZ LED LED CPU CPU DRAM VGA GPU PCIE M 2 BOOT LED_SW1 EZ LED LED LED_OFF LED_ON...
Page 168: ...36 UEFI BIOS BIOS 1 BIOS BIOS 2 F2 3 OK BIOS 1 BIOS 2 F2 3 Delete OK...
Page 172: ...NOTE...
Page 174: ...2 29 Windows 10 29 29 29 UEFI BIOS 30 BIOS 31 BIOS 31 BIOS 32 BIOS 32 EZ 34 37 OC 38...
Page 175: ...3 ESD ESD ESD 60 140...
Page 181: ...9 B550 A PRO SATA 6G 2 1 M 2 3 1 1 1 DVD 1 1 MSI 1...
Page 183: ...11 I O Realtek Realtek...
Page 184: ...12 I O AUDIO INPUT Rear Front Side Center Subwoofer AUDIO INPUT 7 1...
Page 200: ...28 LED LED CPU CPU DRAM DRAM VGA GPU PCIE M 2 BOOT LED_SW1 LED LED LED_OFF LED_ON...
Page 208: ...36 UEFI BIOS BIOS 1 BIOS BIOS 2 F2 3 OK BIOS 1 BIOS 2 F2 3 Delete OK...
Page 212: ...NOTE...