Motherboard M4A78-HTPC Series
E4642 Second Edition V2 April 2009 Copyright © 2009 ASUSTeK Computer Inc. All Rights Reserved. No part of this manual, including the products and software described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kept by the purchaser for backup purposes, without the express written permission of ASUSTeK Computer Inc. (“ASUS”).
Contents Contents....................................................................................................... iii Notices.......................................................................................................... vi Safety information...................................................................................... vii About this guide......................................................................................... vii M4A78-HTPC specifications summary..................
Contents 1.11 Software support......................................................................... 1-31 1.11.1 Installing an operating system....................................... 1-31 1.11.3 ASUS Home Theater Gate............................................ 1-32 1.11.2 Chapter 2 2.1 2.1.1 ASUS Update utility......................................................... 2-1 2.1.3 ASUS CrashFree BIOS 3 utility....................................... 2-3 2.2.1 BIOS menu screen.....................
Contents 2.5 Power menu................................................................................. 2-16 2.5.1 Suspend Mode [Auto].................................................... 2-16 2.5.3 ACPI APIC Support [Enabled]........................................ 2-17 2.5.2 2.5.4 2.6 2.5.5 Hardware Monitor.......................................................... 2-17 2.6.1 Boot Device Priority....................................................... 2-19 2.6.3 Security..........................
Notices Federal Communications Commission Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: • This device may not cause harmful interference, and • This device must accept any interference received including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
Safety information Electrical safety • • • • • • To prevent electrical shock hazard, disconnect the power cable from the electrical outlet before relocating the system. When adding or removing devices to or from the system, ensure that the power cables for the devices are unplugged before the signal cables are connected. If possible, disconnect all power cables from the existing system before you add a device.
Conventions used in this guide To ensure that you perform certain tasks properly, take note of the following symbols used throughout this manual. DANGER/WARNING: Information to prevent injury to yourself when trying to complete a task. CAUTION: Information to prevent damage to the components when trying to complete a task. IMPORTANT: Instructions that you MUST follow to complete a task. NOTE: Tips and additional information to help you complete a task.
M4A78-HTPC specifications summary CPU AMD® Phenom™ X4 / Phenom™ X3 / Athlon™ X2 / Athlon™ / Sempron™ processors (socket AM2+/AM2) Supports AM3 Phenom™ II / Athlon™ X4/ Athlon™ X3 / Athlon™ X2 AMD® 45nm CPU support AMD Cool’n’Quiet™ Technology Chipset AMD® 780G / SB700 System bus Up to 5200 MT/s; HyperTransport™ 3.
M4A78-HTPC specifications summary Storage 1 x Ultra DMA 133/100/66 for up to 2 PATA devices 5 x SATA 3.0 Gb/s ports with RAID 0, 1 and 10 support 1 x External SATA 3.0 Gb/s port * Due to Window® XP/Vista™ limitation, the RAID array with the total capacity over 2TB cannot be set as a boot disk. A RAID array over 2TB can only be set as a data disk only.
M4A78-HTPC specifications summary ASUS Exclusive Overclocking Features Precision Tweaker: - vCore: Adjustable CPU voltage at 50mv increment SFS (Stepless Frequency Selection): - FSB tuning from 200MHz up to 550MHz at 1MHz increment - GPU tuning from 500MHz up to 999MHz - PCIe frequency tuning from 100MHz up to 150MHz at 1MHz increment Overclocking protection: - ASUS C.P.R.
M4A78-HTPC specifications summary BIOS features 8 Mb Flash ROM, AMI BIOS, PnP, DMI 2.0, WfM2.0, SM BIOS 2.5, ACPI 2.0, ASUS EZ Flash 2 Support DVD contents Drivers ASUS Express Gate ASUS Home Theater Gate ASUS PC Probe II ASUS Update Anti-Virus Utility (OEM version) Form factor ATX form factor: 9.6 in x 9.6 in (24.4 cm x 24.4 cm) *Specifications are subject to change without notice.
Chapter 1 Product introduction 1.1 Welcome! Thank you for buying an ASUS® M4A78-HTPC motherboard! The motherboard delivers a host of new features and latest technologies, making it another standout in the long line of ASUS quality motherboards! Before you start installing the motherboard, and hardware devices on it, check the items in your package with the list below. 1.2 Package contents Check your motherboard package for the following items.
AMD® Phenom™ X4 / Phenom™ X3 / Athlon™ X2 / Athlon™ / Sempron™ processors (socket AM2+ / AM2) The motherboard supports AMD® Socket AM2+ multi-core processors. It features dual-channel DDR2 1066 memory support, data transfer rate up to 5200MT/s via HyperTransport™ 3.0 based system bus and AMD® Cool ‘n’ Quiet!™ Technology. AMD® 780G chipset The AMD 780G Northbridge is the latest AMD chipset designed for both HT1.0 and 5200MT/s HyperTransport™ 3.0 (HT 3.
ASUS HTPC Features Absolute Pitch Hi-Fi The independent audio power supply, which is an unprecedented design on motherboards, effectively reduces electrical noise and ensures the purity of sounds. Its gold-plated RCA stereo audio connectors are compatible with amplifiers and do not require any additional connectors, making it easy and simple to connect your PC to your home theater speakers. • For better sound quality, connect a power plug to the 4-pin audio power connector. Refer to page 1-26 for details.
1.4 Before you proceed Take note of the following precautions before you install motherboard components or change any motherboard settings. • Unplug the power cord from the wall socket before touching any component. • Before handling components, use a grounded wrist strap or touch a safely grounded object or a metal object, such as the power supply case, to avoid damaging them due to static electricity. • Hold components by the edges to avoid touching the ICs on them.
1.5 Motherboard overview 1.5.1 Placement direction 1.5.2 Screw holes When installing the motherboard, ensure that you place it into the chassis in the correct orientation. The edge with external ports goes to the rear part of the chassis as indicated in the image below. Place eight screws into the holes indicated by circles to secure the motherboard to the chassis. Do not overtighten the screws! Doing so can damage the motherboard. Place this side towards the rear of the chassis.
1-6 1.5.3 Motherboard layout 1.5.4 Layout contents Connectors/Jumpers/Slots Page 1. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) 1-22 2. CPU socket AM2+/AM2 1-7 3. CPU, Chassis and Power Fan connectors (4-pin CPU_FAN, 3-pin CHA_FAN1–2, 3-pin PWR_FAN) 1-21 4. DDR2 DIMM slots 1-10 5. Serial ATA connectors (7-pin SATA1-5) 1-24 6. IDE connector (40-1 pin PRI_IDE) 1-23 7. Onboard LED (SB_PWR) 1-4 8. Clear RTC RAM (CLRTC) 1-17 9.
1.6 Central Processing Unit (CPU) The motherboard comes with a CPU socket designed for AMD® AM3 Phenom™ II / Athlon™ X4 / Athlon™ X3 / Athlon™ X2 processors and AM2+ / AM2 Phenom™ X4 / Phenom™ X3 / Athlon™ X2 / Athlon™ / Sempron™ processors. The CPU socket is not compatible with AMD® Opteron™ processors. Do not install an Opteron™ processor on this motherboard. 1.6.1 Installing the CPU To install a CPU: 1. Locate the CPU socket on the motherboard. 2.
5. When the CPU is in place, push down the socket lever to secure the CPU. The lever clicks on the side tab to indicate that it is locked. 6. Install a CPU heatsink and fan following the instructions that came with the heatsink package. You can also refer to section 1.6.2 Installing the heatsink and fan for instructions. 7. Connect the CPU fan cable to the CPU_FAN connector on the motherboard.
Your boxed CPU heatsink and fan assembly should come with installation instructions for the CPU, heatsink, and the retention mechanism. If the instructions in this section do not match the CPU documentation, follow the latter. 2. Attach one end of the retention bracket to the retention module base. 1 2 3 3. 4 5 Align the other end of the retention bracket to the retention module base. A clicking sound denotes that the retention bracket is in place.
1.7 System memory 1.7.1 Overview The motherboard comes with two Double Data Rate 2 (DDR2) Dual Inline Memory Modules (DIMM) sockets. A DDR2 module has the same physical dimensions as a DDR DIMM but has a 240-pin footprint compared to the 184-pin DDR DIMM. DDR2 DIMMs are notched differently to prevent installation on a DDR DIMM socket. The figure illustrates the location of the DDR2 DIMM sockets: 1.7.
M4A78-HTPC Motherboard Qualified Vendors Lists (QVL) DDR2-1066MHz capability SS/ Chip DS Brand DIMM socket Voltage support (Optional) A* B* C* Chip NO. Timing Dimm(Bios) N/A Heat-Sink Package 5-5-5-15 4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 BoxP/N:TWIN2X4096-8500C5DF 4096MB(Kit of 2) DS (CM2X2048-8500C5D)(EPP) N/A Heat-Sink Package 5-5-5-15 2.1 SS N/A Heat-Sink Package 5-5-5-15 2.0 DS N/A Heat-Sink Package 5-5-5-15 2.0-2.
DDR2-800MHz capability Vendor Part No. Apacer 78.91G9I.9K5 Apacer 78.01GA0.9L5 Apacer Apacer Apacer CORSAIR CORSAIR CORSAIR CORSAIR Crucial Crucial G.SKILL G.SKILL G.SKILL G.SKILL G.SKILL G.SKILL G.SKILL GEIL GEIL GEIL GEIL GEIL GEIL GEIL GEIL GEIL GEIL GEIL GEIL GEIL GEIL GEIL GEIL GEIL GEIL GEIL GEIL GEIL Hynix Hynix Hynix KINGMAX KINGMAX KINGMAX SS/ Chip DS Brand Chip NO. Timing Dimm(Bios) 512MB SS APACER AM4B5708JQJS8E 5 1024MB SS Apacer AM4B5808FEWS8E 5(800-5-5-5-18) 78.01GA0.
DDR2-800MHz capability (continued) Size SS/ Chip DS Brand Chip NO. KINGSTON KVR800D2N6/4G 4096MB DS E2108ABSE-8G-E NANYA NT1GT64U8HB0BY-25C 1024MB DS NT2GT64U8HC0BY-AC 2048MB Vendor Part No.
DDR2-667MHz capability Vendor Part No. Apacer 78.91G92.9K5 Apacer 78.A1G9O.9K4 Apacer CORSAIR CORSAIR ELPIDA G.SKILL G.SKILL GEIL GEIL GEIL Hynix Hynix Size SS/ DS Chip Brand Chip NO. 512MB SS APACER AM4B5708JQJS7E 2048MB DS APACER AM4B5808CQJS7E 78.01G9O.
1.7.3 Installing a DIMM Unplug the power supply before adding or removing DIMMs or other system components. Failure to do so can cause severe damage to both the motherboard and the components. 1. Press the retaining clips outward to unlock a DDR2 DIMM socket. 2. Align a DIMM on the socket such that the notch on the DIMM matches the break on the socket. 2 DDR2 DIMM notch 1 1 Unlocked retaining clip A DDR2 DIMM is keyed with a notch so that it fits in only one direction.
1.8 Expansion slots In the future, you may need to install expansion cards. The following sub‑sections describe the slots and the expansion cards that they support. Unplug the power cord before adding or removing expansion cards. Failure to do so may cause you physical injury and damage motherboard components. 1.8.1 Installing an expansion card To install an expansion card: 1.
1.9 Jumpers Clear RTC RAM (CLRTC) This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. The onboard button cell battery powers the RAM data in CMOS, which include system setup information such as system passwords. To erase the RTC RAM 1. Turn OFF the computer and unplug the power cord. 2. Move the jumper cap from pins 1-2 (default) to pins 2-3.
1.10 Connectors 1.10.1 Rear panel connectors 1. Coaxial S/PDIF Out port. This port connects an external audio output device via an coaxial S/PDIF cable. 2. Video Graphics Adapter (VGA) port This 15-pin port is for a VGA monitor or other VGA-compatible devices. 3. USB 2.0 ports 3 and 4. These two 4-pin Universal Serial Bus (USB) ports are available for connecting USB 2.0 devices. 4. LAN (RJ-45) port. This port allows Gigabit connection to a Local Area Network (LAN) through a network hub.
Audio 2, 4, 6, or 8-channel configuration Port Headset 2-channel 4-channel 6-channel 8-channel Light Blue Line In Line In Line In Line In Lime Line Out Front Speaker Out Front Speaker Out Front Speaker Out Pink Mic In Mic In Mic In Mic In Orange – – Center/Subwoofer Center/Subwoofer Black – Rear Speaker Out Rear Speaker Ou Rear Speaker Out Gray – – – Side Speaker Out 12. RCA Out port (left-channel). This port connects a receiver or a TV via an RCA cable. 13. USB 2.
Dual display table This table indicates whether the dual display you want to use is supported or not. Dual display output Support DVI + D-Sub • HDMI + D-Sub • Not support DVI + HDMI • Playback of HD DVD and Blu-Ray Discs For better playback quality, we suggest that you follow the system requirements in the suggested list below. Suggested list CPU AMD® Athlon 4400+ DIMM DDR2 800 (1GB or higher) BIOS setup Frame Buffer Size--256MB or higher Playback software CyberLink® PowerDVD 7.
Troubleshooting on HDTV overscaling or underscaling: If your desktop is extending beyond the viewable display area or the desktop or image is not filling the entire display area while using the onboard HDMI out port and the HDMI cable, you can resize the desktop appearing on your HDTV screen. To resize your HDTV desktop: 1. Install AMD Chipset Driver from the motherboard support DVD. 2. Right-click the desktop and select ATI CATALYST(R) Control Center. 3.
1.10.2 1. Internal connectors CPU, Chassis and Power Fan connectors (4-pin CPU_FAN, 3-pin CHA_FAN1–2, 3-pin PWR_FAN) The fan connectors support cooling fans of 350mA~740mA (8.88W max.) or a total of 1A~2.22A (26.64W max.) at +12V. Connect the fan cables to the fan connectors on the motherboard, making sure that the black wire of each cable matches the ground pin of the connector. Do not forget to connect the fan cables to the fan connectors.
2. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) These connectors are for an ATX power supply. The plugs from the power supply are designed to fit these connectors in only one orientation. Find the proper orientation and push down firmly until the connectors completely fit. • We recommend that you use an ATX 12 V Specification 2.0‑compliant power supply unit (PSU) with a minimum of 300 W power rating. This PSU type has 24-pin and 4-pin power plugs.
3. IDE connector (40-1 pin PRI_IDE) The onboard IDE connector is for Ultra DMA 133/100/66 signal cable. There are three connectors on each Ultra DMA 133 / 100 / 66 signal cable: blue, black, and gray.
4. Serial ATA connectors (7-pin SATA1-5) These connectors are for the Serial ATA signal cables for Serial ATA 3Gb/s hard disk and optical disk drives. The Serial ATA 3Gb/s is backward compatible with Serial ATA 1.5Gb/s specification. The data transfer rate of the Serial ATA 3Gb/s is faster than the standard parallel ATA with 133 MB/s (Ultra DMA133). If you install Serial ATA hard disk drives, you can create a RAID 0, RAID 1 or RAID 10 configuration through the onboard SB700 chipset.
5. 1-26 System panel connector (10-1 pin PANEL) This connector supports several chassis-mounted functions. • System power LED (2-pin PLED) • Hard disk drive activity LED (2-pin IDE_LED) • System warning speaker (4-pin SPEAKER) • ATX power button/soft-off button (2-pin PWRSR) • Reset button (2-pin RESET) This 2-pin connector is for the system power LED. Connect the chassis power LED cable to this connector.
6. USB connectors (10-1 pin USB56, USB78, USB910) These connectors are for USB 2.0 ports. Connect the USB module cable to any of these connectors, then install the module to a slot opening at the back of the system chassis. These USB connectors comply with USB 2.0 specification that supports up to 480 Mbps connection speed. Never connect a 1394 cable to the USB connectors. Doing so will damage the motherboard! The USB 2.0 module is purchased separately. 7.
8. 9. Optical drive audio in connector (4-pin CD) This connector allows you to receive stereo audio input from sound sources such as a CD-ROM, TV tuner, or MPEG card. Digital audio connector (4-1 pin SPDIF_OUT) This connector is for an additional Sony/Philips Digital Interface (S/PDIF) ports. The S/PDIF module is purchased separately.
10. Front panel audio connector (10-1 pin AAFP) This connector is for a chassis-mounted front panel audio I/O module that supports either High Definition Audio or AC`97 audio standard. Connect one end of the front panel audio I/O module cable to this connector. • We recommend that you connect a high-definition front panel audio module to this connector to avail of the motherboard high-definition audio capability.
ASUS Q-Connector (system panel) You can use the ASUS Q-Connector to connect/disconnect chassis front panel cables in a few steps. Refer to the instructions below to install the ASUS Q-Connector. 1. Connect the front panel cables to the ASUS Q-Connector. Refer to the labels on the Q-Connector to know the detailed pin definitions, then match them to the respective front panel cable labels. The labels of the front panel cables may differ from chassis made by different manufacturers.
1.11 Software support 1.11.1 Installing an operating system This motherboard supports Windows® XP/Vista Operating Systems (OS). Always install the latest OS version and corresponding updates to maximize the features of your hardware. • Motherboard settings and hardware options vary. Use the setup procedures presented in this chapter for reference only. Refer to your OS documentation for detailed information.
1.11.3 ASUS Home Theater Gate The ASUS Home Theater Gate, specially designed for the HTPC series, allows you to easily and quickly launch media applications to enjoy your music and movies. With the bundled remote controller, you can launch the ASUS Home Theater Gate and start media applications with just one touch. Launching Home Theater Gate 1. Install Home Theater Gate from the motherboard support DVD. 2.
Using the remote controller (RC Edition only) Use the remote controller to launch the ASUS Home Theater Gate and start media applications. Connect the IR receiver to the USB 2.0 port 1 or 2 before using the remote controller.
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Chapter 2 BIOS information 2.1 Managing and updating your BIOS Save a copy of the original motherboard BIOS file to a USB flash disk in case you need to restore the BIOS in the future. Copy the original motherboard BIOS using the ASUS Update utility. 2.1.1 ASUS Update utility The ASUS Update is a utility that allows you to manage, save, and update the motherboard BIOS in Windows® environment. • ASUS Update requires an Internet connection either through a network or an Internet Service Provider (ISP).
Updating from a BIOS file a. Select Update BIOS from a file, and then click Next. b. Locate the BIOS file from the Open window, and then click Open. 3. Follow the onscreen instructions to complete the updating process. 2.1.2 ASUS EZ Flash 2 utility The ASUS EZ Flash 2 feature allows you to update the BIOS without having to use a bootable floppy disk or a DOS‑based utility. Before you start using this utility, download the latest BIOS from the ASUS website at www.asus.com.
2.1.3 ASUS CrashFree BIOS 3 utility The ASUS CrashFree BIOS 3 utility is an auto recovery tool that allows you to restore the BIOS file when it fails or gets corrupted during the updating process. You can restore a corrupted BIOS file using the motherboard support DVD or a USB flash drive that contains the BIOS file. The BIOS file in the motherboard support DVD may be older than the BIOS file published on the ASUS official website. If you want to use the newer BIOS file, download the file at support.asus.
• Press the power button to turn the system off then back on. Using the power button, reset button, or the ++ keys to force reset from a running operating system can cause damage to your data or system. We recommend to always shut-down the system properly from the operating system. The Setup program is designed to make it as easy to use as possible.
To select an item on the menu bar, press the right or left arrow key on the keyboard until the desired item is highlighted. • The BIOS setup screens shown in this chapter are for reference purposes only, and may not exactly match what you see on your screen. • Visit the ASUS website at www.asus.com to download the latest BIOS information. 2.2.3 Navigation keys At the bottom right corner of a menu screen are the navigation keys for that particular menu.
2.3 Main menu When you enter the BIOS Setup program, the Main menu screen appears, giving you an overview of the basic system information. Refer to section 2.2.1 BIOS menu screen for information on the menu screen items and how to navigate through them.
LBA/Large Mode [Auto] Enables or disables the LBA mode. Setting to [Auto] enables the LBA mode if the device supports this mode, and if the device was not previously formatted with LBA mode disabled. Configuration options: [Disabled] [Auto] Block (Multi-Sector Transfer) M [Auto] Enables or disables data multi-sectors transfers. When set to [Auto], the data transfer from and to the device occurs multiple sectors at a time if the device supports multi-sector transfer feature.
PIO Mode [Auto] Selects the PIO mode. Configuration options: [Auto] [0] [1] [2] [3] [4] DMA Mode [Auto] Selects the DMA mode. Configuration options: [Auto] SMART Monitoring [Auto] Sets the Smart Monitoring, Analysis, and Reporting Technology. Configuration options: [Auto] [Disabled] [Enabled] 32Bit Data Transfer [Enabled] Enables or disables 32-bit data transfer. Configuration options: [Disabled] [Enabled] 2.3.6 SATA Configuration This menu allows you to configure the SATA devices.
2.4 Advanced menu The Advanced menu items allow you to change the settings for the CPU and other system devices. Be cautious when changing the settings of the Advanced menu items. Incorrect field values can cause the system to malfunction. BIOS SETUP UTILITY Main Advanced Power Boot Tools Exit JumperFree Configuration CPU Configuration Chipset Onboard Devices Configuration PCIPnP USB Configuration Adjust System Frequency/Voltage etc.
PCIE Clock [xxx] This item appears only when you set the PCIE OverClocking item to [Manual] and allows you to manually set the PCIE frequency. Use the <+> and <-> keys to adjust the value. You can also type the desired value using the numeric keypad. The values range from 100 to 150. Processor Frequency Multiplier [Auto] Allows you to adjust the ratio between CPU Core Clock and FSB Frequency. Configuration options: [Auto] [x8.0 1600 MHz] [x8.5 1700 MHz] [x9.0 1800 MHz] [x9.5 1900 MHz] [x10.
tRTP [Auto] Configuration options: [Auto] [2-4 CLK] [3-5 CLK] TRAS [Auto] Configuration options: [5 CLK] [6 CLK] – [17 CLK] [18 CLK] [Auto] TRC [Auto] Configuration options: [11 CLK] [12 CLK] – [25 CLK] [26 CLK] [Auto] tWR [Auto] Configuration options: [Auto] [3 CLK] [4 CLK] [5 CLK] [6 CLK] TRRD [Auto] Configuration options: [2 CLK] [3 CLK] [4 CLK] [5 CLK] [Auto] tWTR [Auto] Specifies the write to read delay when accessing the same DIMM.
DCT0:MEMCLK drive strength [Auto] Configuration options: [Auto] [0.75x] [1x] [1.25x] [1.5x] DCT0:Data drive strength [Auto] Configuration options: [Auto] [0.75x] [1x] [1.25x] [1.5x] DCT0:DQS drive strength [Auto] Configuration options: [Auto] [0.75x] [1x] [1.25x] [1.5x] DCT0:Processor on-die terminat [Auto] Configuration options: [Auto] [300 ohms +/- 20%] [150 ohms +/- 20%] [75 ohms +/- 20%] The following sub-items appear only when you set the DCT0/DCT1 Strength Config. item to [DCT 1] or [Both].
Cool ’n’ Quiet [Enabled] Enables or disables the AMD Cool’n’Quiet function. Configuration options: [Disabled] [Enabled] CPU Prefetching [Enabled] Allows you to enable or disable CPU prefetching. Configuration options: [Enabled] [Disabled] C1E Configuration [Auto] Allows you to enable or disable the Enhanced Halt State support. Configuration options: [Auto] [Disabled] 2.4.3 Chipset The Chipset menu allows you to change the advanced chipset settings.
ECC Configuration ECC Mode [Disabled] Disables or sets the DRAM ECC mode that allows the hardware to report and correct memory errors. Set this item to [Basic], [Good], or [Max] to allow ECC mode auto-adjustment. Set this item to [Super] to adjust the DRAM BG Scrub sub-item manually. You may also adjust all sub-items by setting this item to [User].
CPU Spread Spectrum [Enabled] Set to [Disabled] to enhance FSB overclocking ability or [Enabled] for EMI control. Configuration options: [Disabled] [Enabled] PCIE Spread Spectrum [Enabled] Set to [Disabled] to enhance PCIE overclocking ability or [Enabled] for EMI control. Configuration options: [Disabled] [Enabled] 2.4.4 Onboard Devices Configuration HD Audio Controller [Enabled] Allows you to enable or disable the HD Audio controller.
USB 2.0 Controller [Enable] Allows you to enable or disable the USB 2.0 controller. Configuration options: [Enabled] [Disabled] Legacy USB Support [Auto] Allows you to enable or disable support for USB devices on legacy operating systems (OS). Setting to Auto allows the system to detect the presence of USB devices at startup. If detected, the USB controller legacy mode is enabled. If no USB device is detected, the legacy USB support is disabled. Configuration options: [Disabled] [Enabled] [Auto] USB 2.
2.5.2 ACPI 2.0 Support [Disabled] 2.5.3 ACPI APIC Support [Enabled] 2.5.4 APM Configuration Allows you to add more tables for Advanced Configuration and Power Interface (ACPI) 2.0 specifications. Configuration options: [Disabled] [Enabled] Allows you to enable or disable the Advanced Configuration and Power Interface (ACPI) support in the Application-Specific Integrated Circuit (ASIC). When set to Enabled, the ACPI APIC table pointer is included in the RSDT pointer list.
CPU Q-Fan Function [Enabled] Allows you to enable or disable the CPU Q-Fan feature that smartly adjusts the fan speeds for more efficient system operation. Configuration options: [Disabled] [Enabled] Select Fan Type: [PWM Fan] This item appears only when you set the CPU Q-Fan Function item to [Enabled] and allows you to select the CPU fan type you installed on the motherboard.
2.6.1 Boot Device Priority 1st ~ xxth Boot Device These items specify the boot device priority sequence from the available devices. The number of device items that appears on the screen depends on the number of devices installed in the system. Configuration options: [Removable Dev.] [Hard Drive] [ATAPI CD-ROM] [Disabled] 2.6.
The message “Password Installed” appears after you successfully set your password. To change the supervisor password, follow the same steps as in setting a supervisor password. To clear the supervisor password, select the Change Supervisor Password then press . The message “Password Uninstalled” appears. If you forget your BIOS password, you can clear it by erasing the CMOS Real Time Clock (RTC) RAM. See section 1.9 Jumpers for information on how to erase the RTC RAM.
2.7 Tools menu BIOS SETUP UTILITY Main Advanced Power Boot Tools Exit ASUS EZ Flash 2 Express Gate Enter OS Timer Reset User Data [Auto] [10 Seconds] [No] AI NET 2 Press ENTER to run the utility to select and update BIOS. This utility supports 1.FAT 12/16/32 (r/w) 2.NTFS (read only) 3.CD-DISC (read only) ←→ Select Screen ↑↓ Select Item Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit v02.61 (C)Copyright 1985-2009, American Megatrends, Inc. 2.7.
2.8 Exit menu The Exit menu items allow you to load the optimal or failsafe default values for the BIOS items, and save or discard your changes to the BIOS items. BIOS SETUP UTILITY Main Advanced Power Boot Tools Exit Exit Options Exit & Save Changes Exit & Discard Changes Discard Changes Load Setup Defaults Exit system setup after saving the changes. F10 key can be used for this operation.
