User Manual
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... this guide vi P7H55-M LX/USB3 specifications summary viii Chapter 1 Product introduction 1.1 Before you proceed 1-1 1.2 Motherboard overview 1-2 1.2.1 Motherboard layout 1-2 1.2.2 Layout contents 1-2 1.3 Central Processing Unit (CPU 1-3 1.4 System memory 1-3 1.4.1 Overview 1-3 1.4.2 Memory configurations 1-4 1.5 Expansion slots 1-6 1.5.1 Installing an expansion card 1-6 1.5.2 Configuring an expansion card 1-6 1.5.3 PCI slots 1-6 1.5.4 PCI Express x4 slot 1-6 1.5.5 PCI Express x16 slot 1-6 1.6 Jumpers 1-7 1.7 Connectors 1-8 1.7.1 Rear panel...
... this guide vi P7H55-M LX/USB3 specifications summary viii Chapter 1 Product introduction 1.1 Before you proceed 1-1 1.2 Motherboard overview 1-2 1.2.1 Motherboard layout 1-2 1.2.2 Layout contents 1-2 1.3 Central Processing Unit (CPU 1-3 1.4 System memory 1-3 1.4.1 Overview 1-3 1.4.2 Memory configurations 1-4 1.5 Expansion slots 1-6 1.5.1 Installing an expansion card 1-6 1.5.2 Configuring an expansion card 1-6 1.5.3 PCI slots 1-6 1.5.4 PCI Express x4 slot 1-6 1.5.5 PCI Express x16 slot 1-6 1.6 Jumpers 1-7 1.7 Connectors 1-8 1.7.1 Rear panel...
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... came with the product, contact a qualified service technician or your dealer immediately. • To avoid short circuits, keep paper clips, screws, and staples away from connectors, slots, sockets and circuitry. • Avoid dust, humidity, and temperature extremes. vi Contact a qualified service technician or your area. If you add a device. • Before...
... came with the product, contact a qualified service technician or your dealer immediately. • To avoid short circuits, keep paper clips, screws, and staples away from connectors, slots, sockets and circuitry. • Avoid dust, humidity, and temperature extremes. vi Contact a qualified service technician or your area. If you add a device. • Before...
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...1333/1066 MHz, non-ECC, un- buffered memory * Refer to www.asus.com for Intel® CPU support list. ASUS MyLogo 2 - resolution: 2048 x 1536 @75Hz Intel® H55 Express Chipset: - 6 x Serial ATA 3.0 Gb/s connectors Realtek® 8111E Gigabit LAN PCIe controller VIA® VT1708S 8-channel* ...; 32-bit operating system may only recognize less than 3GB. ASUS AI NET 2 - ASUS CrashFree BIOS 3 - Multi-language BIOS (continued on the next page) viii DVI-D with Max. ASUS EZ Flash 2 - P7H55-M LX/USB3 specifications summary CPU Chipset Memory Expansion slots VGA output Storage LAN Audio...
...1333/1066 MHz, non-ECC, un- buffered memory * Refer to www.asus.com for Intel® CPU support list. ASUS MyLogo 2 - resolution: 2048 x 1536 @75Hz Intel® H55 Express Chipset: - 6 x Serial ATA 3.0 Gb/s connectors Realtek® 8111E Gigabit LAN PCIe controller VIA® VT1708S 8-channel* ...; 32-bit operating system may only recognize less than 3GB. ASUS AI NET 2 - ASUS CrashFree BIOS 3 - Multi-language BIOS (continued on the next page) viii DVI-D with Max. ASUS EZ Flash 2 - P7H55-M LX/USB3 specifications summary CPU Chipset Memory Expansion slots VGA output Storage LAN Audio...
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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 x SATA connectors 1 x 24-pin EATX power connector 1 x 4-pin ATX 12V power connector 1 x CPU fan...
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 x SATA connectors 1 x 24-pin EATX power connector 1 x 4-pin ATX 12V power connector 1 x CPU fan...
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... into the chassis in the correct orientation. DO NOT overtighten the screws! 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. 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 The edge with external ports goes to the chassis.
... into the chassis in the correct orientation. DO NOT overtighten the screws! 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. 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 The edge with external ports goes to the chassis.
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Align the card connector with the slot and press firmly until the card is already installed in a chassis). 3. Replace the chassis cover. 1.5.2 Configuring an expansion card After installing the expansion card, configure it and make the necessary hardware settings for the card. 2. ASUS P7H55-M LX/USB3 1-6 Failure to do not need to use. 4. Turn on BIOS...
Align the card connector with the slot and press firmly until the card is already installed in a chassis). 3. Replace the chassis cover. 1.5.2 Configuring an expansion card After installing the expansion card, configure it and make the necessary hardware settings for the card. 2. ASUS P7H55-M LX/USB3 1-6 Failure to do not need to use. 4. Turn on BIOS...
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... to support an 8-channel audio output. This port allows Gigabit connection to a headphone or a speaker. Microphone port (pink). ASUS P7H55-M LX/USB3 1-8 Refer to the table below for the function of this port becomes Front Speaker Out. 6. LAN port LED indications ACT/...This port is for a PS/2 mouse. 2. This port connects to a Local Area Network (LAN) through a network hub. This port connects a microphone. 1.7 1.7.1 1 Connectors Rear panel ports 2 3 45 10 9 8 7 6 1. LAN (RJ-45) port. Audio 2, 4, 6, 8-channel configuration Port Light Blue (Rear panel) Lime ...
... to support an 8-channel audio output. This port allows Gigabit connection to a headphone or a speaker. Microphone port (pink). ASUS P7H55-M LX/USB3 1-8 Refer to the table below for the function of this port becomes Front Speaker Out. 6. LAN port LED indications ACT/...This port is for a PS/2 mouse. 2. This port connects to a Local Area Network (LAN) through a network hub. This port connects a microphone. 1.7 1.7.1 1 Connectors Rear panel ports 2 3 45 10 9 8 7 6 1. LAN (RJ-45) port. Audio 2, 4, 6, 8-channel configuration Port Light Blue (Rear panel) Lime ...
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... to output RGB Signal to USB 3.0 ports for faster and better performance for your USB 3.0 devices. 9. USB connectors (10-1 pin USB56, USB78, USB910, USB1112) These connectors are for any USB 3.0 port when installing Windows® operating system. • Due to USB 3.0 controller limitation...GND NC USB+5V USB_P6USB_P6+ GND 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. ...
... to output RGB Signal to USB 3.0 ports for faster and better performance for your USB 3.0 devices. 9. USB connectors (10-1 pin USB56, USB78, USB910, USB1112) These connectors are for any USB 3.0 port when installing Windows® operating system. • Due to USB 3.0 controller limitation...GND NC USB+5V USB_P6USB_P6+ GND 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. ...
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... ATA signal cables for an additional Sony/Philips Digital Interface (S/PDIF) port. +5V SPDIFOUT GND P7H55-M LX/USB3 SPDIF_OUT P7H55-M LX/USB3 Digital audio connector The S/PDIF module is backward compatible with 133MB/s (Ultra DMA133). SATA3G_1 GND RSATA_TXP1 RSATA_TXN1 GND RSATA_RXP1... RSATA_RXN6 RSATA_RXP6 GND RSATA_TXN6 RSATA_TXP6 GND GND RSATA_RXN4 RSATA_RXP4 GND RSATA_TXN4 RSATA_TXP4 GND P7H55-M LX/USB3 SATA3G_6 SATA3G_4 P7H55-M LX/USB3 SATA connectors Install the Windows® XP Service Pack 2 or later version before using Serial ATA. 3. ASUS P7H55-M LX/USB3 1-10 2.
... ATA signal cables for an additional Sony/Philips Digital Interface (S/PDIF) port. +5V SPDIFOUT GND P7H55-M LX/USB3 SPDIF_OUT P7H55-M LX/USB3 Digital audio connector The S/PDIF module is backward compatible with 133MB/s (Ultra DMA133). SATA3G_1 GND RSATA_TXP1 RSATA_TXN1 GND RSATA_RXP1... RSATA_RXN6 RSATA_RXP6 GND RSATA_TXN6 RSATA_TXP6 GND GND RSATA_RXN4 RSATA_RXP4 GND RSATA_TXN4 RSATA_TXP4 GND P7H55-M LX/USB3 SATA3G_6 SATA3G_4 P7H55-M LX/USB3 SATA connectors Install the Windows® XP Service Pack 2 or later version before using Serial ATA. 3. ASUS P7H55-M LX/USB3 1-10 2.
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... GND IDE_LED+ IDE_LED- CPU_FAN CPU FAN PWM CPU FAN IN CPU FAN PWR GND P7H55-M LX/USB3 CHA_FAN GND +12V Rotation P7H55-M LX/USB3 fan connectors 5. Ground Reset P7H55-M LX/USB3 F_PANEL PIN 1 HD_LED RESET P7H55-M LX/USB3 System panel connector • System power LED (2-pin PLED) This 2-pin connector is for the chassis-mounted reset button for system reboot without turning off the system...
... GND IDE_LED+ IDE_LED- CPU_FAN CPU FAN PWM CPU FAN IN CPU FAN PWR GND P7H55-M LX/USB3 CHA_FAN GND +12V Rotation P7H55-M LX/USB3 fan connectors 5. Ground Reset P7H55-M LX/USB3 F_PANEL PIN 1 HD_LED RESET P7H55-M LX/USB3 System panel connector • System power LED (2-pin PLED) This 2-pin connector is for the chassis-mounted reset button for system reboot without turning off the system...
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... an ATX power supply. Find the proper orientation and push down firmly until the connectors completely fit. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) These connectors are for details. ATX12V EATXPWR +12V DC +12V DC P7H55-M LX/USB3 GND GND +3 Volts +12 Volts +12 Volts +5V Standby Power OK PIN... least 15 A on +12 V and that the 20-pin power plug can provide at http://support.asus. The plugs from the power supply are uncertain about the minimum power supply requirement for your system, refer to connect the 4-pin ATX +12 V power plug; ASUS P7H55-M LX/USB3 1-12
... an ATX power supply. Find the proper orientation and push down firmly until the connectors completely fit. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) These connectors are for details. ATX12V EATXPWR +12V DC +12V DC P7H55-M LX/USB3 GND GND +3 Volts +12 Volts +12 Volts +5V Standby Power OK PIN... least 15 A on +12 V and that the 20-pin power plug can provide at http://support.asus. The plugs from the power supply are uncertain about the minimum power supply requirement for your system, refer to connect the 4-pin ATX +12 V power plug; ASUS P7H55-M LX/USB3 1-12
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... 1 MIC2 MICPWR Line out_R NC Line out_L PORT1 L PORT1 R PORT2 R SENSE_SEND PORT2 L P7H55-M LX/USB3 HD-audio-compliant Legacy AC'97 pin definition compliant definition P7H55-M LX/USB3 front panel audio connector If you want to connect an AC97 front panel audio module to this connector, set to [HD Audio]. See section 2.4.3 Onboard Devices Configuration for the chassis...
... 1 MIC2 MICPWR Line out_R NC Line out_L PORT1 L PORT1 R PORT2 R SENSE_SEND PORT2 L P7H55-M LX/USB3 HD-audio-compliant Legacy AC'97 pin definition compliant definition P7H55-M LX/USB3 front panel audio connector If you want to connect an AC97 front panel audio module to this connector, set to [HD Audio]. See section 2.4.3 Onboard Devices Configuration for the chassis...
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Serial port connectors (10-1 pin COM1) The connector is purchased separately. The serial port bracket (COM1) is for a serial (COM) port. COM1 PIN 1 P7H55-M LX/USB3 P7H55-M LX/USB3 Serial port (COM1) connector ASUS P7H55-M LX/USB3 1-14 Connect the serial port module cable to the connector, then install the module to a slot opening at the back of the system chassis. 9.
Serial port connectors (10-1 pin COM1) The connector is purchased separately. The serial port bracket (COM1) is for a serial (COM) port. COM1 PIN 1 P7H55-M LX/USB3 P7H55-M LX/USB3 Serial port (COM1) connector ASUS P7H55-M LX/USB3 1-14 Connect the serial port module cable to the connector, then install the module to a slot opening at the back of the system chassis. 9.
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When set or change the configurations for the Serial ATA connectors supported by Windows Vista/7 with LBA mode disabled. Configuration options: [Disabled] [Enabled] 2.3.5 Storage Configuration The items in the system. Select... to set to [Disabled], the data transfer from and to the device occurs one sector at a time if the device supports multi-sector transfer feature. ASUS P7H55-M LX/USB3 2-9 Configuration options: [Auto] SMART Monitoring [Auto] Sets the Smart Monitoring, Analysis, and Reporting Technology. Configuration options: [Disabled] [Compatible] [Enhanced] Configure SATA...
When set or change the configurations for the Serial ATA connectors supported by Windows Vista/7 with LBA mode disabled. Configuration options: [Disabled] [Enabled] 2.3.5 Storage Configuration The items in the system. Select... to set to [Disabled], the data transfer from and to the device occurs one sector at a time if the device supports multi-sector transfer feature. ASUS P7H55-M LX/USB3 2-9 Configuration options: [Auto] SMART Monitoring [Auto] Sets the Smart Monitoring, Analysis, and Reporting Technology. Configuration options: [Disabled] [Compatible] [Enhanced] Configure SATA...