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Contents Notices...v Safety information vi About this guide vii P5G41-M LX 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 ... support 1-16 1.8.1 Installing an operating system 1-16 1.8.2 Support DVD information 1-16 Chapter 2: BIOS information 2.1 Managing and updating your BIOS 2-1 2.1.1 ASUS Update utility 2-1 2.1.2 ASUS EZ Flash 2 2-2 2.1.3 ASUS CrashFree BIOS 2-3 2.2 BIOS setup program 2-3 iii
Contents Notices...v Safety information vi About this guide vii P5G41-M LX 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 ... support 1-16 1.8.1 Installing an operating system 1-16 1.8.2 Support DVD information 1-16 Chapter 2: BIOS information 2.1 Managing and updating your BIOS 2-1 2.1.1 ASUS Update utility 2-1 2.1.2 ASUS EZ Flash 2 2-2 2.1.3 ASUS CrashFree BIOS 2-3 2.2 BIOS setup program 2-3 iii
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...(O.C.)/800/667 MHz DDR2 memory modules * Refer to www.asus.com or this user manual for the Memory QVL (Qualified Vendors Lists). ** When you are using a Windows® 32-bit operating system. P5G41-M LX specifications summary CPU Chipset Front Side Bus Memory Graphics Expansion... slots Storage LAN Audio USB ASUS special features LGA775 socket for Intel® Core™2 Quad / Core™2 Extreme / Core...
...(O.C.)/800/667 MHz DDR2 memory modules * Refer to www.asus.com or this user manual for the Memory QVL (Qualified Vendors Lists). ** When you are using a Windows® 32-bit operating system. P5G41-M LX specifications summary CPU Chipset Front Side Bus Memory Graphics Expansion... slots Storage LAN Audio USB ASUS special features LGA775 socket for Intel® Core™2 Quad / Core™2 Extreme / Core...
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P5G41-M LX specifications summary Back panel I/O ports Internal I/O connectors BIOS features Support DVD contents Accessories Form factor 1 x PS/2 keyboard port 1 x PS/2 mouse port 1 x COM port 1 x VGA port 1 x ...-pin EATX power connector 1 x 4-pin ATX 12V power connector 8Mb Flash ROM, AMI BIOS, PnP, DMI 2.0, WfM 2.0, ACPI v2.0a, SM BIOS v2.5 Drivers ASUS PC Probe II ASUS LiveUpdate Utility Anti-virus software (OEM version) 2 x Serial ATA cables 1 x UltraDMA 100/66 cable 1 x I/O shield User Manual MicroATX form factor: 9.6 in x 7.2 in (24...
P5G41-M LX specifications summary Back panel I/O ports Internal I/O connectors BIOS features Support DVD contents Accessories Form factor 1 x PS/2 keyboard port 1 x PS/2 mouse port 1 x COM port 1 x VGA port 1 x ...-pin EATX power connector 1 x 4-pin ATX 12V power connector 8Mb Flash ROM, AMI BIOS, PnP, DMI 2.0, WfM 2.0, ACPI v2.0a, SM BIOS v2.5 Drivers ASUS PC Probe II ASUS LiveUpdate Utility Anti-virus software (OEM version) 2 x Serial ATA cables 1 x UltraDMA 100/66 cable 1 x I/O shield User Manual MicroATX form factor: 9.6 in x 7.2 in (24...
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... or plugging in the bag that came with a standby power LED that lights up to page ix for buying an ASUS® P5G41-M LX motherboard! The illustration below shows the location of the onboard LED. Onboard LED The motherboard comes with the component. •...motherboard settings. • Unplug the power cord from the power supply. This is switched off mode. SB_PWR P5G41-M LX ON OFF Standby Power Powered Off P5G41-M LX Onboard LED ASUS P5G41-M LX 1-1 Before you start installing the motherboard, and hardware devices on a grounded antistatic pad or in any motherboard...
... or plugging in the bag that came with a standby power LED that lights up to page ix for buying an ASUS® P5G41-M LX motherboard! The illustration below shows the location of the onboard LED. Onboard LED The motherboard comes with the component. •...motherboard settings. • Unplug the power cord from the power supply. This is switched off mode. SB_PWR P5G41-M LX ON OFF Standby Power Powered Off P5G41-M LX Onboard LED ASUS P5G41-M LX 1-1 Before you start installing the motherboard, and hardware devices on a grounded antistatic pad or in any motherboard...
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...-4 LAN1_USB12 LGA775 Intel® G41 24.4cm(9.6in) EATXPWR AUDIO 2 RTL 8103EL PCIEX16 ICS 9LRS954 7 Super I/O PCIEX1_1 Lithium Cell CMOS Power Intel® 8 ICH7 PCIEX1_2 P5G41-M LX SATA2 SATA4 CLRTC 8Mb 8 BIOS ALC PCI1 SATA1 SATA3 662-VC1 SB_PWR F_PANEL USBPW5-8 USB78 USB56 PRI_IDE AAFP SPEAKER 14 13 12 11 4 10 9 Place...
...-4 LAN1_USB12 LGA775 Intel® G41 24.4cm(9.6in) EATXPWR AUDIO 2 RTL 8103EL PCIEX16 ICS 9LRS954 7 Super I/O PCIEX1_1 Lithium Cell CMOS Power Intel® 8 ICH7 PCIEX1_2 P5G41-M LX SATA2 SATA4 CLRTC 8Mb 8 BIOS ALC PCI1 SATA1 SATA3 662-VC1 SB_PWR F_PANEL USBPW5-8 USB78 USB56 PRI_IDE AAFP SPEAKER 14 13 12 11 4 10 9 Place...
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...not bent. The figure illustrates the location of the DDR2 DIMM sockets: DIMM_A1 DIMM_B1 Channel Channel A Channel B P5G41-M LX P5G41-M LX 240-pin DDR2 DIMM sockets Sockets DIMM_A1 DIMM_B1 ASUS P5G41-M LX 1-3 The motherboard supports Intel® LGA775 processors with the Intel® Enhanced Intel SpeedStep® Technology (EIST).... Contact your retailer immediately if the PnP cap is shipment/transit-related. • Keep the cap after installing the motherboard. ASUS will shoulder the cost of repair only if the damage is missing, or if you see any damage to the socket contacts...
...not bent. The figure illustrates the location of the DDR2 DIMM sockets: DIMM_A1 DIMM_B1 Channel Channel A Channel B P5G41-M LX P5G41-M LX 240-pin DDR2 DIMM sockets Sockets DIMM_A1 DIMM_B1 ASUS P5G41-M LX 1-3 The motherboard supports Intel® LGA775 processors with the Intel® Enhanced Intel SpeedStep® Technology (EIST).... Contact your retailer immediately if the PnP cap is shipment/transit-related. • Keep the cap after installing the motherboard. ASUS will shoulder the cost of repair only if the damage is missing, or if you see any damage to the socket contacts...
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... 5 AU01GE667C5KBGC N/A AU01GE667C5KBGC 5 78.A1G9O.9K4 5 AM4B5808CQJS7E0749B 5 506010-4894 5 M2OAD5G3H3160Q1C52 N/A M2OAD5G314170Q1C58 N/A M2OAD5H3J4170I1C53 N/A AL6E8E63J-6E1 5 AL7E8E63J-6E1 5 AL7E8F73C-6E1 5 NT512T64U88A1BY-3C N/A Chip Brand SS/ DS Chip No. P5G41-M LX Motherboard Qualified Vendors Lists (QVL) DDR2-667 MHz capability Size 2G 512MB 2G 1G 512MB 1G 1G 512MB 1G 1G 512MB 1G 512MB 512MB 512MB...
... 5 AU01GE667C5KBGC N/A AU01GE667C5KBGC 5 78.A1G9O.9K4 5 AM4B5808CQJS7E0749B 5 506010-4894 5 M2OAD5G3H3160Q1C52 N/A M2OAD5G314170Q1C58 N/A M2OAD5H3J4170I1C53 N/A AL6E8E63J-6E1 5 AL7E8E63J-6E1 5 AL7E8F73C-6E1 5 NT512T64U88A1BY-3C N/A Chip Brand SS/ DS Chip No. P5G41-M LX Motherboard Qualified Vendors Lists (QVL) DDR2-667 MHz capability Size 2G 512MB 2G 1G 512MB 1G 1G 512MB 1G 1G 512MB 1G 512MB 512MB 512MB...
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...-Sink Package DS Heat-Sink Package SS HY5PS12821CFP-S5 DS HY5PS12821CFPS5 • • • • • • • • • (continued on the next page) ASUS P5G41-M LX 1-5 DDR2-667 MHz capability Size Vendor Part No. CL 1G 1G 2G 2G 2G(2 x 1GB) 4G(2 x 2GB) 1G 512MB 4G 1G 1G 1G 512MB 512MB...
...-Sink Package DS Heat-Sink Package SS HY5PS12821CFP-S5 DS HY5PS12821CFPS5 • • • • • • • • • (continued on the next page) ASUS P5G41-M LX 1-5 DDR2-667 MHz capability Size Vendor Part No. CL 1G 1G 2G 2G 2G(2 x 1GB) 4G(2 x 2GB) 1G 512MB 4G 1G 1G 1G 512MB 512MB...
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... for the latest QVL. DDR2 1066(O.C.) Qualified Vendors List Size Vendor Part No. Double - ASUS P5G41-M LX 1-7 SS/ DS 1024MB Apacer 1024MB Corsair 4096MB(kit of 2) Corsair 1024MB Crucial 2048MB Crucial 1024MB G.SKILL 2048MB(Kit of 2) G.SKILL 4096MB(kit of 2) G.SKILL 1024MB ...
... for the latest QVL. DDR2 1066(O.C.) Qualified Vendors List Size Vendor Part No. Double - ASUS P5G41-M LX 1-7 SS/ DS 1024MB Apacer 1024MB Corsair 4096MB(kit of 2) Corsair 1024MB Crucial 2048MB Crucial 1024MB G.SKILL 2048MB(Kit of 2) G.SKILL 4096MB(kit of 2) G.SKILL 1024MB ...
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... the BIOS automatically resets parameter settings to clear the Real Time Clock (RTC) RAM in CMOS, which include system setup information such as system passwords. ASUS P5G41-M LX 1-9 Keep the cap on CLRTC jumper default position. Shut down the key during the boot process and enter BIOS setup to clear the CMOS RTC...
... the BIOS automatically resets parameter settings to clear the Real Time Clock (RTC) RAM in CMOS, which include system setup information such as system passwords. ASUS P5G41-M LX 1-9 Keep the cap on CLRTC jumper default position. Shut down the key during the boot process and enter BIOS setup to clear the CMOS RTC...
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... (no power to CPU, DRAM in slow refresh, power supply in reduced power mode). KBPWR 12 23 +5V +5VSB (Default) P5G41-M LX P5G41-M LX Keyboard Power Setting 3. USB device wake-up (3-pin USBPW1-4, 3-pin USBPW5-8) Set these jumpers to +5V to wake up the computer...from S1 sleep mode (CPU stopped, DRAM refreshed, system running in the BIOS. USBPW1-4 12 23 +5V +5VSB (Default) USBPW5-8 12 23 P5G41-M LX +5V +5VSB (Default) P5G41-M LX USB Device Wake Up 1.7 Connectors 1.7.1 Rear panel connectors 1 2 34 10 9 1-10 8 7 6 5 Chapter 1: Product introduction 2. Keyboard power...
... (no power to CPU, DRAM in slow refresh, power supply in reduced power mode). KBPWR 12 23 +5V +5VSB (Default) P5G41-M LX P5G41-M LX Keyboard Power Setting 3. USB device wake-up (3-pin USBPW1-4, 3-pin USBPW5-8) Set these jumpers to +5V to wake up the computer...from S1 sleep mode (CPU stopped, DRAM refreshed, system running in the BIOS. USBPW1-4 12 23 +5V +5VSB (Default) USBPW5-8 12 23 P5G41-M LX +5V +5VSB (Default) P5G41-M LX USB Device Wake Up 1.7 Connectors 1.7.1 Rear panel connectors 1 2 34 10 9 1-10 8 7 6 5 Chapter 1: Product introduction 2. Keyboard power...
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... below for the function of this port becomes Front Speaker Out. 5. COM port. Refer to a Local Area Network (LAN) through a network hub. Microphone port (pink). ASUS P5G41-M LX 1-11 LAN (RJ-45) port.
... below for the function of this port becomes Front Speaker Out. 5. COM port. Refer to a Local Area Network (LAN) through a network hub. Microphone port (pink). ASUS P5G41-M LX 1-11 LAN (RJ-45) port.
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...) and provides a minimum power of 1 A~2.22 A (26.64 W max.) at http://support.asus. The system may become unstable or may damage the motherboard components. These are designed to install additional devices. P5G41-M LX CPU_FAN GND CPU FAN PWR CPU FAN IN CPU FAN PWM CHA_FAN GND +12V Rotation Only... the 4-pin CPU fan supports the ASUS Q-Fan feature. Find the proper orientation and push down firmly until...
...) and provides a minimum power of 1 A~2.22 A (26.64 W max.) at http://support.asus. The system may become unstable or may damage the motherboard components. These are designed to install additional devices. P5G41-M LX CPU_FAN GND CPU FAN PWR CPU FAN IN CPU FAN PWM CHA_FAN GND +12V Rotation Only... the 4-pin CPU fan supports the ASUS Q-Fan feature. Find the proper orientation and push down firmly until...
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...on each Ultra DMA 100/66 signal cable: blue, black, and gray. Connect the blue connector to configure your device. P5G41-M LX IDE connector If any device jumper is removed to PIN 1. Serial ATA connectors (7-pin SATA1-4) These connectors are three connectors... RSATA_TXP3 GND SATA1 SATA3 SATA4 GND RSATA_TXP4 RSATA_TXN4 GND RSATA_RXP4 RSATA_RXN4 GND SATA2 GND RSATA_TXP2 RSATA_TXN2 GND RSATA_RXP2 RSATA_RXN2 GND P5G41-M LX SATA connectors ASUS P5G41-M LX 1-13 Single device Two devices Drive jumper setting Cable-Select or Master Cable-Select Master Slave Mode of device(s) ...
...on each Ultra DMA 100/66 signal cable: blue, black, and gray. Connect the blue connector to configure your device. P5G41-M LX IDE connector If any device jumper is removed to PIN 1. Serial ATA connectors (7-pin SATA1-4) These connectors are three connectors... RSATA_TXP3 GND SATA1 SATA3 SATA4 GND RSATA_TXP4 RSATA_TXN4 GND RSATA_RXP4 RSATA_RXN4 GND SATA2 GND RSATA_TXP2 RSATA_TXN2 GND RSATA_RXP2 RSATA_RXN2 GND P5G41-M LX SATA connectors ASUS P5G41-M LX 1-13 Single device Two devices Drive jumper setting Cable-Select or Master Cable-Select Master Slave Mode of device(s) ...
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...AGND NC NC NC AAFP PIN 1 PIN 1 MIC2 MICPWR Line out_R NC Line out_L PORT1 L PORT1 R PORT2 R SENSE_SEND PORT2 L P5G41-M LX HD-audio-compliant Legacy AC'97 pin definition compliant definition P5G41-M LX Analog front panel connector • We recommend that you connect a high-definition front panel audio module to this connector to... setup to the USB connectors. 5. USB+5V USB_P6USB_P6+ GND NC USB+5V USB_P8USB_P8+ GND NC USB+5V USB_P5USB_P5+ GND USB+5V USB_P7USB_P7+ GND P5G41-M LX USB78 PIN 1 USB56 PIN 1 P5G41-M LX USB2.0 connectors Never connect a 1394 cable to [HD Audio].
...AGND NC NC NC AAFP PIN 1 PIN 1 MIC2 MICPWR Line out_R NC Line out_L PORT1 L PORT1 R PORT2 R SENSE_SEND PORT2 L P5G41-M LX HD-audio-compliant Legacy AC'97 pin definition compliant definition P5G41-M LX Analog front panel connector • We recommend that you connect a high-definition front panel audio module to this connector to... setup to the USB connectors. 5. USB+5V USB_P6USB_P6+ GND NC USB+5V USB_P8USB_P8+ GND NC USB+5V USB_P5USB_P5+ GND USB+5V USB_P7USB_P7+ GND P5G41-M LX USB78 PIN 1 USB56 PIN 1 P5G41-M LX USB2.0 connectors Never connect a 1394 cable to [HD Audio].
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PLED PWR BTN F_PANEL PIN 1 P5G41-M LX +HDLED RESET P5G41-M LX System panel connector • System power LED (2-pin PLED) This 2-pin connector is for the HDD Activity LED. The system power LED lights up or ... the chassis-mounted system warning speaker. System panel connector (10-1 pin F_PANEL) This connector supports several chassis-mounted functions. SPEAKER P5G41-M LX PIN 1 P5G41-M LX Speaker Out Connector +5V GND GND Speaker Out ASUS P5G41-M LX 1-15 Pressing the power switch for more than four seconds while the system is ON turns the system OFF. • Reset...
PLED PWR BTN F_PANEL PIN 1 P5G41-M LX +HDLED RESET P5G41-M LX System panel connector • System power LED (2-pin PLED) This 2-pin connector is for the HDD Activity LED. The system power LED lights up or ... the chassis-mounted system warning speaker. System panel connector (10-1 pin F_PANEL) This connector supports several chassis-mounted functions. SPEAKER P5G41-M LX PIN 1 P5G41-M LX Speaker Out Connector +5V GND GND Speaker Out ASUS P5G41-M LX 1-15 Pressing the power switch for more than four seconds while the system is ON turns the system OFF. • Reset...
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Updating the BIOS To update the BIOS: 1. b. ASUS P5G41-M LX 2-1 Copy the original motherboard BIOS using this utility. Place the support DVD in the future. Follow the onscreen instructions to launch the ASUS Update utility. 2. From the dropdown list, select any of the original motherboard BIOS file to a... USB flash disk in case you need 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). • This utility is available in the support...
Updating the BIOS To update the BIOS: 1. b. ASUS P5G41-M LX 2-1 Copy the original motherboard BIOS using this utility. Place the support DVD in the future. Follow the onscreen instructions to launch the ASUS Update utility. 2. From the dropdown list, select any of the original motherboard BIOS file to a... USB flash disk in case you need 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). • This utility is available in the support...
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... select EZ Flash 2 and press to avail all its features. ASUSTek EZ Flash 2 BIOS ROM Utility V3.36 FLASH TYPE: MXIC 25L8005 Current ROM BOARD: P5G41-M-LX VER: 0307 (H:00 B:01) DATE: 07/21/2009 Update ROM BOARD: Unknown VER: Unknown DATE: Unknown PATH: A:\ A: Note [Enter] Select or Load ... NOT shut down or reset the system while updating the BIOS to complete the updating process. 2.1.2 ASUS EZ Flash 2 The ASUS EZ Flash 2 feature allows you start using an OS‑based utility. The ASUS Update utility is capable of these two ways: • Press + during POST. • Enter...
... select EZ Flash 2 and press to avail all its features. ASUSTek EZ Flash 2 BIOS ROM Utility V3.36 FLASH TYPE: MXIC 25L8005 Current ROM BOARD: P5G41-M-LX VER: 0307 (H:00 B:01) DATE: 07/21/2009 Update ROM BOARD: Unknown VER: Unknown DATE: Unknown PATH: A:\ A: Note [Enter] Select or Load ... NOT shut down or reset the system while updating the BIOS to complete the updating process. 2.1.2 ASUS EZ Flash 2 The ASUS EZ Flash 2 feature allows you start using an OS‑based utility. The ASUS Update utility is capable of these two ways: • Press + during POST. • Enter...
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...menu. If you do not press , POST continues with motherboard models. Insert the support DVD to the optical drive or the removable device that ASUS CrashFree BIOS support vary with its parameters. When found, the utility reads the BIOS file and starts flashing the corrupted BIOS file. 4. The ...the BIOS Setup program to enter BIOS Setup using this option only if you in the support DVD may not be the latest version. ASUS P5G41-M LX 2-3 Entering BIOS Setup after POST To enter BIOS Setup after the utility completes the updating process and turn the system off the system ...
...menu. If you do not press , POST continues with motherboard models. Insert the support DVD to the optical drive or the removable device that ASUS CrashFree BIOS support vary with its parameters. When found, the utility reads the BIOS file and starts flashing the corrupted BIOS file. 4. The ...the BIOS Setup program to enter BIOS Setup using this option only if you in the support DVD may not be the latest version. ASUS P5G41-M LX 2-3 Entering BIOS Setup after POST To enter BIOS Setup after the utility completes the updating process and turn the system off the system ...