1 Chapter

9.ATX power connectors (24-pin EATXPWR; 8-pin EATX12V)

These connectors are for ATX power supply plugs. The power supply plugs are designed to fit these connectors in only one orientation. Find the proper orientation and push down firmly until the connectors completely fit.

 

EATX12V

 

EATXPWR

 

DC DC DC DC

+3 Volts

GND

 

+12V +12V +12V +12V

 

+12

Volts

+5 Volts

 

 

 

 

+12

Volts

+5 Volts

 

+5V Standby

+5 Volts

 

 

Power OK

-5 Volts

 

PIN 1

 

GND

GND

 

GND GND GND GND

+5 Volts

GND

H87M-PLUS

 

GND

GND

 

 

+5 Volts

PSON#

 

 

 

GND

GND

 

 

+3

Volts

-12 Volts

 

 

+3

Volts

+3 Volts

 

 

 

PIN 1

 

H87M-PLUS ATX power connectors

• For a fully configured system, we recommend that you use a power supply unit (PSU) that complies with ATX 12V Specification 2.0 (or later version) and provides a minimum power of 350W.

• DO NOT forget to connect the 4-pin/8-pin EATX12V power plug. Otherwise, the system will not boot.

• We recommend that you use a PSU with a higher power output when configuring a system with more power-consuming devices. The system may become unstable or may not boot up if the power is inadequate.

• If you want to use two high-end PCI Express x16 cards, use a PSU with 1000W power or above to ensure the system stability.

• If you are uncertain about the minimum power supply requirement for your system, refer to the Recommended Power Supply Wattage Calculator at http://support.asus. com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us for details.

10. TPM connector (20-1 pin TPM)

This connector supports a Trusted Platform Module (TPM) system, which securely store keys, digital certificates, passwords and data. A TPM system also helps enhance network security, protect digital identities, and ensures platform integrity.

 

 

TPM

 

RESET

SB_SUS_STAT

 

GPIO

GND

 

SERIRQ

+3VSB

 

SMBSDA

SMBSCL

 

GND

LAD0

 

LAD1

+3V

H87M-PLUS

LAD2

LAD3

 

PWROWN

PCIRST#

 

 

FRAME

 

GND

PCICLK

 

 

PIN 1

H87M-PLUS TPM Connector

The TPM module is purchased separately.

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Chapter 1: Product introduction