Gigabyte B450 AORUS PRO WIFI User Manual page 22

B_
21) TPM (Trusted Platform Module Header)
You may connect a TPM (Trusted Platform Module) to this header.
19
20
22) CPU/DRAM/VGA/BOOT (Status LEDs)
The status LEDs show whether the CPU, memory, graphics card, and operating system are working
properly after system power-on. If the CPU/DRAM/VGA LED is on, that means the corresponding device
is not working normally; if the BOOT LED is on, that means you haven't entered the operating system yet.
B_
S
S
S
_
S _S
Pin No. Definition
1
1
_
2
3
2
4
5
6
7
8
9
10
S 3
USB 0_ B
CPU: CPU status LED
DRAM: Memory status LED
VGA: Graphics card status LED
_
CPU DRAM BOOT: Operating system status LED
VGA BOOT
_
_
B_
Pin No. Definition
LCLK 11 LAD0
GND 12 GND
LFRAME 13 NC
No Pin 14 NC
LRESET 15 SB3V
NC 16 SERIRQ
S
LAD3 17 GND
LAD2 18 NC
VCC3 19 NC
LAD1 20 NC
B S S S
F_USB3
B_
S F
B_
S _S
- 22 -
B S S
1
_S
S
1 2 3
U
_
_
_
_ _ 3
_ _B