Specifications

1-20
Chapter 1: Product introduction
11. System panel connector (10-1 pin F_PANEL)
Thisconnectorsupportsseveralchassis-mountedfunctions.
• 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.
12. 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.
TheTPMmoduleispurchasedseparately.
B85M-D PLUS
PIN 1
PWR_BTN
PWR_LED+ PWR_LED- PWR GND
HDD_LED+
HDD_LED-
Ground
HWRST#
(NC)
F_PANEL
+PWR_LED-
+HDD_LED- RESET
B85M-D PLUS System panel connector
B85M-D PLUS
B85M-D PLUS TPM connector
PIN 1
TPM
PWRDWN GND +3VSB NC LAD0 +3V LAD3 PCIRST# FRAME PCICLK
NC
CLKRUN
SERIRQ
NC
GND
LAD1 LAD2
NC
GND