User Manual
Page 4
...2-8 2.3.5 Storage Configuration 2-9 2.3.6 System Information 2-10 2.4 Advanced menu 2-10 2.4.1 CPU Configuration 2-11 2.4.2 Chipset 2-13 2.4.3 Onboard Devices Configuration 2-13 2.4.4 USB Configuration 2-14 2.4.5 PCI PnP 2-14 2.4.6 Intel VT-d Configuration 2-15 2.5 Power menu 2-15 2.5.1 Suspend Mode [Auto 2-15 2.5.2 ACPI 2.0 Support [... 2-18 2.7 Tools menu 2-19 2.7.1 AI NET 2 2-19 2.7.2 ASUS EZ Flash 2 2-19 2.7.3 IO Level up [Disabled 2-19 2.8 Exit menu 2-20 P7H55-M LX/USB3 motherboard installation notices 2-21 Intel® LGA1156 processor and chipset combination instruction...
...2-8 2.3.5 Storage Configuration 2-9 2.3.6 System Information 2-10 2.4 Advanced menu 2-10 2.4.1 CPU Configuration 2-11 2.4.2 Chipset 2-13 2.4.3 Onboard Devices Configuration 2-13 2.4.4 USB Configuration 2-14 2.4.5 PCI PnP 2-14 2.4.6 Intel VT-d Configuration 2-15 2.5 Power menu 2-15 2.5.1 Suspend Mode [Auto 2-15 2.5.2 ACPI 2.0 Support [... 2-18 2.7 Tools menu 2-19 2.7.1 AI NET 2 2-19 2.7.2 ASUS EZ Flash 2 2-19 2.7.3 IO Level up [Disabled 2-19 2.8 Exit menu 2-20 P7H55-M LX/USB3 motherboard installation notices 2-21 Intel® LGA1156 processor and chipset combination instruction...
User Manual
Page 8
...panel to support an 8-channel audio output. 2 x USB 3.0/2.0 ports (blue, at the back panel) 10 x USB 2.0/1.1 ports (8 ports at the mid-board, 2 ports at the back panel) ASUS Anti-Surge ASUS GPU Boost ASUS EZ DIY - P7H55-M LX/USB3 specifications summary CPU Chipset Memory Expansion slots VGA output ...Storage LAN Audio USB ASUS unique features LGA1156 socket for Intel® Core™ i7/ Core™ i5/ ...
...panel to support an 8-channel audio output. 2 x USB 3.0/2.0 ports (blue, at the back panel) 10 x USB 2.0/1.1 ports (8 ports at the mid-board, 2 ports at the back panel) ASUS Anti-Surge ASUS GPU Boost ASUS EZ DIY - P7H55-M LX/USB3 specifications summary CPU Chipset Memory Expansion slots VGA output ...Storage LAN Audio USB ASUS unique features LGA1156 socket for Intel® Core™ i7/ Core™ i5/ ...
User Manual
Page 9
P7H55-M LX/ USB3 specifications summary Rear panel ports Internal connectors BIOS features Manageability Accessories Support DVD Form factor 1 x PS/2 Mouse port 1 x PS/2 Keyboard port 1 x D-Sub port 1 x DVI-D port 1 x LAN (RJ-45) port 2 x USB 2.0/1.1 ports 2 x USB 3.0/2.0 ports (blue) 3 x Audio jacks 4 x USB 2.0/1.1 connectors support additional 8 USB 2.0/1.1 ports 6... Wake up, WOR by Ring 2 x Serial ATA cables 1 x I/O shield 1 x User Manual 1 x Support DVD Drivers ASUS Utilities ASUS Update Anti-virus software (OEM version) uATX form factor: 9.6 in x 7.8 in (24.4 cm x 19.8 cm) * Specifications are...
P7H55-M LX/ USB3 specifications summary Rear panel ports Internal connectors BIOS features Manageability Accessories Support DVD Form factor 1 x PS/2 Mouse port 1 x PS/2 Keyboard port 1 x D-Sub port 1 x DVI-D port 1 x LAN (RJ-45) port 2 x USB 2.0/1.1 ports 2 x USB 3.0/2.0 ports (blue) 3 x Audio jacks 4 x USB 2.0/1.1 connectors support additional 8 USB 2.0/1.1 ports 6... Wake up, WOR by Ring 2 x Serial ATA cables 1 x I/O shield 1 x User Manual 1 x Support DVD Drivers ASUS Utilities ASUS Update Anti-virus software (OEM version) uATX form factor: 9.6 in x 7.8 in (24.4 cm x 19.8 cm) * Specifications are...
User Manual
Page 11
...6. Speaker connector (4-pin SPEAKER) 1-12 9. Digital audio connector (4-1 pin SPDIF_OUT) 1-3 11. Onboard LED (SB_PWR) 1-11 Page 1-13 1-9 1-10 1-14 1-13 1-1 ASUS P7H55-M LX/USB3 1-2 Front panel audio connector (10-1 pin AAFP) 1-7 13. Intel® CPU socket 4. 1.2 1.2.1 Motherboard overview Motherboard layout Ensure that you install the motherboard into the holes... Layout contents Connectors/Jumpers/Slots/LED 1. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) 3. Clear RTC RAM (3-pin CLRTC) 7. USB connectors (10-1 pin USB56, USB78, USB910, USB1112) 10.
...6. Speaker connector (4-pin SPEAKER) 1-12 9. Digital audio connector (4-1 pin SPDIF_OUT) 1-3 11. Onboard LED (SB_PWR) 1-11 Page 1-13 1-9 1-10 1-14 1-13 1-1 ASUS P7H55-M LX/USB3 1-2 Front panel audio connector (10-1 pin AAFP) 1-7 13. Intel® CPU socket 4. 1.2 1.2.1 Motherboard overview Motherboard layout Ensure that you install the motherboard into the holes... Layout contents Connectors/Jumpers/Slots/LED 1. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) 3. Clear RTC RAM (3-pin CLRTC) 7. USB connectors (10-1 pin USB56, USB78, USB910, USB1112) 10.
User Manual
Page 15
...groups, making the system unstable and the card inoperable. 1.5.3 PCI slots The PCI slots support cards such as LAN cards, SCSI cards, USB cards, and other cards that comply with the PCI specifications. 1.5.4 PCI Express x4 slot This motherboard supports PCI Express x4 network cards, ...When using PCI cards on the system and change the necessary BIOS settings, if any. Install the software drivers for information on the slot. 5. ASUS P7H55-M LX/USB3 1-6 Assign an IRQ to the chassis with it by adjusting the software settings. 1. Secure the card to the card. 3. Turn on shared...
...groups, making the system unstable and the card inoperable. 1.5.3 PCI slots The PCI slots support cards such as LAN cards, SCSI cards, USB cards, and other cards that comply with the PCI specifications. 1.5.4 PCI Express x4 slot This motherboard supports PCI Express x4 network cards, ...When using PCI cards on the system and change the necessary BIOS settings, if any. Install the software drivers for information on the slot. 5. ASUS P7H55-M LX/USB3 1-6 Assign an IRQ to the chassis with it by adjusting the software settings. 1. Secure the card to the card. 3. Turn on shared...
User Manual
Page 18
... NC USB1112 USB910 USB78 USB56 P7H55-M LX/USB3 PIN 1 PIN 1 PIN 1 PIN 1 USB+5V USB_P11USB_P11+ GND USB+5V USB_P9USB_P9+ GND USB+5V USB_P7USB_P7+ GND USB+5V USB_P5USB_P5+ GND P7H55-M LX/USB3 USB2.0 connectors Never connect a 1394 cable to USB 2.0/1.1 devices. 8. These USB connectors comply with DVI-I. 1.7.2 Internal connectors 1. The USB 2.0 module is for USB 2.0 ports. USB 2.0 ports 1 and 2. Connect the USB module cable to 480Mbps connection...
... NC USB1112 USB910 USB78 USB56 P7H55-M LX/USB3 PIN 1 PIN 1 PIN 1 PIN 1 USB+5V USB_P11USB_P11+ GND USB+5V USB_P9USB_P9+ GND USB+5V USB_P7USB_P7+ GND USB+5V USB_P5USB_P5+ GND P7H55-M LX/USB3 USB2.0 connectors Never connect a 1394 cable to USB 2.0/1.1 devices. 8. These USB connectors comply with DVI-I. 1.7.2 Internal connectors 1. The USB 2.0 module is for USB 2.0 ports. USB 2.0 ports 1 and 2. Connect the USB module cable to 480Mbps connection...
User Manual
Page 25
... is a utility that allows you to manage, save, and update the motherboard BIOS in Windows® environment. • ASUS Update requires an Internet connection either of the original motherboard BIOS file to a USB flash disk in case you need to restore the BIOS in the support DVD that comes with the motherboard... available in the future. Chapter 2 BIOS information 2.1 Managing and updating your BIOS Save a copy of the following methods: Updating from the Internet, then click Next. ASUS P7H55-M LX/USB3 2-1 Place the support DVD into the optical drive.
... is a utility that allows you to manage, save, and update the motherboard BIOS in Windows® environment. • ASUS Update requires an Internet connection either of the original motherboard BIOS file to a USB flash disk in case you need to restore the BIOS in the support DVD that comes with the motherboard... available in the future. Chapter 2 BIOS information 2.1 Managing and updating your BIOS Save a copy of the following methods: Updating from the Internet, then click Next. ASUS P7H55-M LX/USB3 2-1 Place the support DVD into the optical drive.
User Manual
Page 26
...Next. Select Update BIOS from a BIOS file a. Before you to avail all its features. ASUSTek EZ Flash 2 BIOS ROM Utility V4.14 Current ROM BOARD: P7H55 M LX USB3 VER: 0205 (H:00 B:00) DATE: 10/29/2010 Update ROM BOARD: Unknown VER: Unknown DATE: Unknown PATH: A:\ A: Note [Enter] Select or Load ..., then launch EZ Flash 2 in either of updating itself through the Internet. Locate the BIOS file from the ASUS website at www.asus.com. Insert the USB flash disk that contains the latest BIOS file to switch between drives until the correct BIOS file is found , EZ Flash 2 performs...
...Next. Select Update BIOS from a BIOS file a. Before you to avail all its features. ASUSTek EZ Flash 2 BIOS ROM Utility V4.14 Current ROM BOARD: P7H55 M LX USB3 VER: 0205 (H:00 B:00) DATE: 10/29/2010 Update ROM BOARD: Unknown VER: Unknown DATE: Unknown PATH: A:\ A: Note [Enter] Select or Load ..., then launch EZ Flash 2 in either of updating itself through the Internet. Locate the BIOS file from the ASUS website at www.asus.com. Insert the USB flash disk that contains the latest BIOS file to switch between drives until the correct BIOS file is found , EZ Flash 2 performs...
User Manual
Page 27
... the BIOS to prevent system boot failure! 2.1.3 ASUS BIOS Updater The ASUS BIOS Updater allows you can use as shown. When the ASUS Logo appears, press to boot using defaults ASUS P7H55-M LX/USB3 2-3 Turn off the computer and disconnect all SATA hard disk drives (optional). • This function supports USB flash disks with the latest BIOS file...
... the BIOS to prevent system boot failure! 2.1.3 ASUS BIOS Updater The ASUS BIOS Updater allows you can use as shown. When the ASUS Logo appears, press to boot using defaults ASUS P7H55-M LX/USB3 2-3 Turn off the computer and disconnect all SATA hard disk drives (optional). • This function supports USB flash disks with the latest BIOS file...
User Manual
Page 28
... filename with no more than eight alphanumeric characters for the filename and three alphanumeric characters for DOS V1.00b [09/06/22] Current ROM BOARD: P7H55 M LX USB3 VER: 0205 DATE: 10/29/2010 Update ROM BOARD: Unknown VER: Unknown DATE: Unknown PATH: A:\ BIOS backup is done, press any key ...to FreeDOS (http://www.freedos.org)! C:\>d: D:\> Backing up the current BIOS To backup the current BIOS file using the BIOS Updater Ensure that the USB flash drive is any key to save the file. 1. 3. When the Make Disk menu appears, select the FreeDOS command prompt item by pressing the...
... filename with no more than eight alphanumeric characters for the filename and three alphanumeric characters for DOS V1.00b [09/06/22] Current ROM BOARD: P7H55 M LX USB3 VER: 0205 DATE: 10/29/2010 Update ROM BOARD: Unknown VER: Unknown DATE: Unknown PATH: A:\ BIOS backup is done, press any key ...to FreeDOS (http://www.freedos.org)! C:\>d: D:\> Backing up the current BIOS To backup the current BIOS file using the BIOS Updater Ensure that the USB flash drive is any key to save the file. 1. 3. When the Make Disk menu appears, select the FreeDOS command prompt item by pressing the...
User Manual
Page 30
...that contains the BIOS file. • Before using this utility, rename the BIOS file in the USB flash drive into H55MLXU3.ROM. • Download the latest BIOS file from the ASUS website at www.asus.com. Turn on again. Recovering the BIOS To recover the BIOS: 1. The utility automatically checks...When found, the utility reads the BIOS file and starts flashing the corrupted BIOS file. 4. 2.1.4 ASUS CrashFree BIOS 3 ASUS CrashFree BIOS 3 is an auto recovery tool that contains the BIOS file to the USB port or to the floppy disk drive, if supported. 3. You can cause system boot failure! DO...
...that contains the BIOS file. • Before using this utility, rename the BIOS file in the USB flash drive into H55MLXU3.ROM. • Download the latest BIOS file from the ASUS website at www.asus.com. Turn on again. Recovering the BIOS To recover the BIOS: 1. The utility automatically checks...When found, the utility reads the BIOS file and starts flashing the corrupted BIOS file. 4. 2.1.4 ASUS CrashFree BIOS 3 ASUS CrashFree BIOS 3 is an auto recovery tool that contains the BIOS file to the USB port or to the floppy disk drive, if supported. 3. You can cause system boot failure! DO...
User Manual
Page 34
... field values can cause the system to change the settings for the CPU and other system devices. Main Advanced P7H55-M LX/USB3 BIOS Setup Power Boot Tools Exit CPU Configuration Chipset Onboard Devices Configuration USB Configuration PCIPnP Intel VT-d Configuration Version 0205 Adjust System frequency/voltage. 2-10 Chapter 2: BIOS information Bios Information Displays the...
... field values can cause the system to change the settings for the CPU and other system devices. Main Advanced P7H55-M LX/USB3 BIOS Setup Power Boot Tools Exit CPU Configuration Chipset Onboard Devices Configuration USB Configuration PCIPnP Intel VT-d Configuration Version 0205 Adjust System frequency/voltage. 2-10 Chapter 2: BIOS information Bios Information Displays the...
User Manual
Page 38
... the presence of the PCI PnP menu items. Incorrect field values can cause the system to change the advanced settings for the USB storage device to change the USB-related features. Configuration options: [Auto] [Floppy] [Forced FDD] [Hard Disk] [CDROM] 2.4.5 PCI PnP The PCI PnP...to [No], BIOS configures all the devices in this menu allows you to disable or enable the USB functions. 2.4.4 USB Configuration The items in the system. USB Mass Storage Device Configuration USB Mass Storage Reset Delay [20 Sec] Allows you install a Plug and Play operating system, the operating...
... the presence of the PCI PnP menu items. Incorrect field values can cause the system to change the advanced settings for the USB storage device to change the USB-related features. Configuration options: [Auto] [Floppy] [Forced FDD] [Hard Disk] [CDROM] 2.4.5 PCI PnP The PCI PnP...to [No], BIOS configures all the devices in this menu allows you to disable or enable the USB functions. 2.4.4 USB Configuration The items in the system. USB Mass Storage Device Configuration USB Mass Storage Reset Delay [20 Sec] Allows you install a Plug and Play operating system, the operating...
User Manual
Page 43
...when prompted. When you to [Setup], BIOS checks for special functions. Configuration options: [Disabled] [USB 3.0] ASUS P7H55-M LX/USB3 2-19 Main Advanced P7H55-M LX/USB3 BIOS Setup Power Boot Tools Exit AI NET 2 Version 0205 LAN Cable Status ASUS EZ Flash 2 IO Levelup [Disabled] 2.7.1 AI NET 2 Check Atheros LAN cable [Disabled] ... you set or change the user password, follow the same steps in a password containing up [Disabled] Enables or disables the USB 3.0 function. The User Password item on top of the Atheros LAN cable during the Power-On Self‑Test (POST). ...
...when prompted. When you to [Setup], BIOS checks for special functions. Configuration options: [Disabled] [USB 3.0] ASUS P7H55-M LX/USB3 2-19 Main Advanced P7H55-M LX/USB3 BIOS Setup Power Boot Tools Exit AI NET 2 Version 0205 LAN Cable Status ASUS EZ Flash 2 IO Levelup [Disabled] 2.7.1 AI NET 2 Check Atheros LAN cable [Disabled] ... you set or change the user password, follow the same steps in a password containing up [Disabled] Enables or disables the USB 3.0 function. The User Password item on top of the Atheros LAN cable during the Power-On Self‑Test (POST). ...