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Asus H81-PLUS User Manual

Asus H81-PLUS
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Motherboard
H81-PLUS

Table of Contents

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Asus H81-PLUS Specifications

General IconGeneral
Non-ECCYes
Memory channelsDual-channel
Memory slots typeDIMM
Number of memory slots2
Supported memory typesDDR3-SDRAM
Maximum internal memory16 GB
Supported memory clock speeds1066, 1333, 1666 MHz
Processor socketLGA 1150 (Socket H3)
Processor manufacturerIntel
Compatible processor seriesIntel Celeron, Intel Pentium
USB 2.0 connectors3
Number of SATA connectors4
Number of EATX power connectors1
USB 3.2 Gen 1 (3.1 Gen 1) connectors0
USB 2.0 ports quantityUSB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Audio chipRealtek ALC887
Component forPC
Motherboard chipsetIntelĀ® H81
Audio output channels7.1 channels
Motherboard form factorATX
Windows operating systems supportedWindows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64
Supported storage drive interfacesSATA II, SATA III
Maximum resolution1920 x 1200 pixels
Maximum graphics card memory1024 MB
Parallel processing technology supportNot supported
Cables includedSATA
LAN controllerRealtek RTL8111G
Ethernet interface typeGigabit Ethernet
BIOS typeUEFI AMI
ACPI version2.0a
BIOS memory size64 Mbit
Weight and Dimensions IconWeight and Dimensions
Depth188 mm
Width305 mm

Summary

Safety and Handling Precautions

Electrical Safety

General precautions to prevent electrical shock hazards during system handling and operation.

Operation Safety

Precautions for safe operation, including avoiding short circuits and environmental factors.

Motherboard Specifications

ASUS unique features

Lists proprietary ASUS technologies like 5X Protection, DIGI+ VRM, DRAM Fuse, etc.

Product Introduction and Installation

Installation Safety Precautions

Safety precautions before installing motherboard components or changing settings.

CPU Installation and Overview

Installing the CPU

Step-by-step guide for installing the CPU into the socket.

CPU heatsink and fan assembly installation

Instructions for installing the CPU heatsink and fan assembly.

System Memory Installation

Memory configurations

Details on installing memory modules and OS limitations.

Installing a DIMM

Step-by-step guide for installing a DIMM into a socket.

Removing a DIMM

Step-by-step guide for removing a DIMM from a socket.

Expansion Slot Installation

Installing an expansion card

Steps for installing an expansion card into a slot.

Jumpers and Configuration

Clear RTC RAM (3-pin CLRTC)

Function and diagram of the CLRTC jumper for clearing CMOS.

To erase the RTC RAM

Procedure for clearing CMOS RTC RAM data.

Motherboard Connectors

ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)

Explains ATX power connectors and PSU recommendations.

CPU and chassis fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN)

Explains fan connectors and features like Q-Fan.

BIOS Management

EZ Update

Description of the EZ Update utility for BIOS/driver updates.

ASUS EZ Flash 2

Instructions for updating BIOS using the ASUS EZ Flash 2 utility.

ASUS CrashFree BIOS 3

Information on BIOS recovery using the CrashFree BIOS 3 utility.

Updating the BIOS file

Steps for confirming and completing the BIOS update process.

BIOS Setup Program Navigation

Entering BIOS Setup at startup

How to access the BIOS setup program immediately after powering on.

Entering BIOS Setup after POST

Alternative methods to access the BIOS setup after the system starts.

BIOS My Favorites Feature

BIOS Main Menu Options

Administrator Password

How to set, change, or clear the administrator password.

User Password

How to set, change, or clear the user password.

Ai Tweaker Menu for Overclocking

Ai Tweaker Menu Items

Introduces the menu items for configuring overclocking-related settings.

CPU Core Ratio [Auto]

Settings for automatically or manually adjusting CPU core ratio.

CPU Ratio Limits

Configures 1-Core, 2-Core, 3-Core, and 4-Core Ratio Limits.

CPU Cache Ratio Settings

Settings for minimum and maximum CPU Cache Ratio.

DRAM Timing Control

Configuration of Primary and Secondary DRAM timings.

RTL IOL Control

Settings for RTL and IOL control parameters.

Third Timings

Configuration of various third DRAM timing parameters.

DIGI+ VRM Voltage Control

Covers CPU Load-Line Calibration, CPU Fixed Frequency, CPU Power Phase Control.

DIGI+ VRM Manual Adjustments

Covers Manual Adjustment, CPU Power Duty Control, CPU Current Capability.

CPU Power Management

Covers Enhanced Intel SpeedStep Technology and Turbo Mode.

CPU Internal Power Management

Various CPU internal power management and saving settings.

Extreme Over-voltage & CPU Voltages

Covers Over-voltage, CPU Core Voltage, and CPU Cache Voltage.

CPU Graphics & System Agent Voltages

Covers CPU Graphics, System Agent, and Analog I/O Voltages.

CPU Digital I/O & DRAM Voltages

Covers Digital I/O, SVID Support, CPU Input, DRAM, PCH Voltages.

Advanced BIOS Settings

CPU Configuration

Settings related to CPU features like Thermal Monitor, Hyper-threading, Core activation.

CPU Feature Controls

Controls for CPUID, Execute Disable Bit, Virtualization, and Prefetching.

Advanced SATA Configuration

Settings for SATA mode selection and aggressive LPM.

System Monitor Menu

CPU & Chassis Fan Control

Controls for CPU and chassis fan speed and profiles.

System Boot Configuration Menu

Fast Boot Configuration

Settings for accelerating the system boot speed.

Boot Device Priority & Secure Boot

Covers storage/PCIe boot options and Secure Boot configuration.

Secure Boot Key Management

Manages Secure Boot keys including KEK, DB, and DBX.

BIOS Exit Menu Options

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