Instruction Manual

ASUS H81M Series
1-19
9. System panel connector (10-1 pin PANEL)
This connector supports several chassis-mounted functions.
H81M-A
PIN 1
PWR BTN
PLED+ PLED- PWR GND
HDD_LED+
HDD_LED-
Ground
HWRST#
(NC)
F_PANEL
PWR LED
+HDD_LED RESET
H81M-A System panel connector
• System power LED (2-pin PWR_LED)
This 2-pin connector is for the system power LED. Connect the chassis power LED
cable to this connector. The system power LED lights up when you turn on the system
power, and blinks when the system is in sleep mode.
• Hard disk drive activity LED (2-pin HDD_LED)
This 2-pin connector is for the HDD Activity LED. Connect the HDD Activity LED cable
to this connector. The HDD LED lights up or ashes when data is read from or written
to the HDD.
• ATX power button/soft-off button (2-pin PWR_BTN)
This connector is for the system power button.
• Reset button (2-pin RESET)
This 2-pin connector is for the chassis-mounted reset button for system reboot without
turning off the system power.
10. TPM connector (20-1 pin TPM)*
This connector supports a Trusted Platform Module (TPM) system, which can securely
store keys, digital certicates, passwords, and data. A TPM system also helps enhance
network security, protects digital identities, and ensures platform integrity.
*H81M-A model only.
The TPM module is purchased separately!
H81M-A
TPM
SB_SUS_STAT GND +3VSB SMBSCL LAD0 +3V LAD3 PCIRST# FRAME PCICLK
RESET
GPIO
SERIRQ
SMBSDA
GND
LAD1 LAD2
PWROWN
GND
H81M-A TPM connector