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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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... or more, Windows® 32-bit operating system may only recognize less than 3GB. 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 ...multi-core CPU * Refer to 8 x USB 2.0/1.1 ports (4 ports at mid-board, 4 ports at back panel) ASUS CrashFree BIOS 3 ASUS Q-Fan ASUS EZ Flash 2 ASUS MyLogo 2 ASUS AI NET 2 ASUS Turbo Key (continued on the next page) viii Supports Jack-detection and Multi-streaming technologies Supports up to www...
... or more, Windows® 32-bit operating system may only recognize less than 3GB. 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 ...multi-core CPU * Refer to 8 x USB 2.0/1.1 ports (4 ports at mid-board, 4 ports at back panel) ASUS CrashFree BIOS 3 ASUS Q-Fan ASUS EZ Flash 2 ASUS MyLogo 2 ASUS AI NET 2 ASUS Turbo Key (continued on the next page) viii Supports Jack-detection and Multi-streaming technologies Supports up to www...
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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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... the wall socket before removing or plugging in your motherboard package. Failure to do so may cause severe damage to page ix for buying an ASUS® P5G41-M LX motherboard! If any motherboard settings. • Unplug the power cord from the power supply. This is damaged or missing, contact your retailer. 1.1 Before... the location of the onboard LED. Refer to the motherboard, peripherals, or components. Chapter 1 Product introduction Thank you for the list of accessories. SB_PWR P5G41-M LX ON OFF Standby Power Powered Off P5G41-M LX Onboard LED ASUS P5G41-M LX 1-1
... the wall socket before removing or plugging in your motherboard package. Failure to do so may cause severe damage to page ix for buying an ASUS® P5G41-M LX motherboard! If any motherboard settings. • Unplug the power cord from the power supply. This is damaged or missing, contact your retailer. 1.1 Before... the location of the onboard LED. Refer to the motherboard, peripherals, or components. Chapter 1 Product introduction Thank you for the list of accessories. SB_PWR P5G41-M LX ON OFF Standby Power Powered Off P5G41-M LX Onboard LED ASUS P5G41-M LX 1-1
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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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... installing the motherboard. ASUS will process Return Merchandise Authorization (RMA) requests only if the motherboard comes with the cap on the socket and the socket contacts are not bent. ASUS will shoulder the cost 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
... installing the motherboard. ASUS will process Return Merchandise Authorization (RMA) requests only if the motherboard comes with the cap on the socket and the socket contacts are not bent. ASUS will shoulder the cost 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
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... mapped for single-channel operation. • Always install DIMMs with the same CAS latency. This motherboard supports up of 256 megabits (Mb) chips or less. 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...
... mapped for single-channel operation. • Always install DIMMs with the same CAS latency. This motherboard supports up of 256 megabits (Mb) chips or less. 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 CL KHX6400D2LL/1G N/A KVR800D2N5/1G N/A KHX6400D2LLK2/1GN N/A KHX6400D2K2/2G N/A KVR800D2N6/512 N/A KVR800D2N5/1G N/A KVR800D2N6/1G N/A KVR800D2N5/2G N/A KHX6400D2/2G N/A KVR800D2N6/4G N/A KVR800D2N5/512 N/A M378T6553GZS-CF7...
...-Sink Package DS Heat-Sink Package SS HY5PS12821CFP-S5 DS HY5PS12821CFPS5 • • • • • • • • • (continued on the next page) ASUS P5G41-M LX 1-5 CL KHX6400D2LL/1G N/A KVR800D2N5/1G N/A KHX6400D2LLK2/1GN N/A KHX6400D2K2/2G N/A KVR800D2N6/512 N/A KVR800D2N5/1G N/A KVR800D2N6/1G N/A KVR800D2N5/2G N/A KHX6400D2/2G N/A KVR800D2N6/4G N/A KVR800D2N5/512 N/A M378T6553GZS-CF7...
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... Package • Heat-Sink Package •• Heat-Sink Package •• Heat-Sink Package •• SS - ASUS P5G41-M LX 1-7 Double - sided DIMM support: • A*: Supports one module inserted into any slot as Single-channel memory configuration. •... Kingmax Kingston N/A N/A Micron N/A N/A PSC N/A Transcend Elixir N/A N/A N/A N/A DIMM Chip NO. Single-sided / DS - Visit the ASUS website at www.asus.com for the latest QVL. SS/ DS 1024MB Apacer 1024MB Corsair 4096MB(kit of 2) Corsair 1024MB Crucial 2048MB Crucial 1024MB G.SKILL 2048MB(Kit...
... Package • Heat-Sink Package •• Heat-Sink Package •• Heat-Sink Package •• SS - ASUS P5G41-M LX 1-7 Double - sided DIMM support: • A*: Supports one module inserted into any slot as Single-channel memory configuration. •... Kingmax Kingston N/A N/A Micron N/A N/A PSC N/A Transcend Elixir N/A N/A N/A N/A DIMM Chip NO. Single-sided / DS - Visit the ASUS website at www.asus.com for the latest QVL. SS/ DS 1024MB Apacer 1024MB Corsair 4096MB(kit of 2) Corsair 1024MB Crucial 2048MB Crucial 1024MB G.SKILL 2048MB(Kit...
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... RAM data. Plug the power cord and turn ON the computer. 4. Keep the cap on CLRTC jumper default position. For system failure due to overclocking. ASUS P5G41-M LX 1-9 1.6 Jumpers 1. You can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. Except when clearing the...
... RAM data. Plug the power cord and turn ON the computer. 4. Keep the cap on CLRTC jumper default position. For system failure due to overclocking. ASUS P5G41-M LX 1-9 1.6 Jumpers 1. You can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. Except when clearing the...
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... the keyboard (the default is the Space Bar)s. KBPWR 12 23 +5V +5VSB (Default) P5G41-M LX P5G41-M LX Keyboard Power Setting 3. Set to +5VSB to wake up feature. 2. 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...
... the keyboard (the default is the Space Bar)s. KBPWR 12 23 +5V +5VSB (Default) P5G41-M LX P5G41-M LX Keyboard Power Setting 3. Set to +5VSB to wake up feature. 2. 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...
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... Out port (lime). In 4-channel and 6-channel configurations, the function of the audio ports in 2, 4, or 6-channel configuration. This port is for connecting USB 2.0 devices. 7. ASUS P5G41-M LX 1-11 Microphone port (pink). These two 4-pin Universal Serial Bus (USB) ports are available for a VGA monitor or other audio sources. 4. This port allows 10...
... Out port (lime). In 4-channel and 6-channel configurations, the function of the audio ports in 2, 4, or 6-channel configuration. This port is for connecting USB 2.0 devices. 7. ASUS P5G41-M LX 1-11 Microphone port (pink). These two 4-pin Universal Serial Bus (USB) ports are available for a VGA monitor or other audio sources. 4. This port allows 10...
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...-consuming devices or when you are designed to the fan connectors. The system may become unstable or may damage the motherboard components. 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. Connect the fan cables to connect the 4-pin ATX12V power plug. Do not forget to connect the fan cables to fit these connectors in only one orientation. P5G41-M LX fan connectors 1-12 Chapter 1: Product introduction ATX power connectors ...
...-consuming devices or when you are designed to the fan connectors. The system may become unstable or may damage the motherboard components. 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. Connect the fan cables to connect the 4-pin ATX12V power plug. Do not forget to connect the fan cables to fit these connectors in only one orientation. P5G41-M LX fan connectors 1-12 Chapter 1: Product introduction ATX power connectors ...
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... ribbon cable to PIN 1. PRI_IDE P5G41-M LX PIN1 NOTE:Orient the red markings on the Ultra DMA cable connector. P5G41-M LX IDE connector If any device jumper is backward compatible with the Serial ATA 1.5Gb/s specification. P5G41-M LX GND RSATA_RXN1 RSATA_RXP1 GND RSATA_TXN1 RSATA_TXP1... 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 The data transfer rate of device(s) - 3. IDE connector (40-1 pin PRI_IDE) The onboard IDE connector...
... ribbon cable to PIN 1. PRI_IDE P5G41-M LX PIN1 NOTE:Orient the red markings on the Ultra DMA cable connector. P5G41-M LX IDE connector If any device jumper is backward compatible with the Serial ATA 1.5Gb/s specification. P5G41-M LX GND RSATA_RXN1 RSATA_RXP1 GND RSATA_TXN1 RSATA_TXP1... 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 The data transfer rate of device(s) - 3. IDE connector (40-1 pin PRI_IDE) The onboard IDE connector...
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... standard. 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 this connector. Front panel audio connector (10-1 pin AAFP) This connector...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...
... standard. 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 this connector. Front panel audio connector (10-1 pin AAFP) This connector...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...
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PLED+ PLEDPWR GND HD_LED+ HD_LED- 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. Connect the HDD Activity LED cable to ... the system is in sleep or soft-off the system power. 8. The speaker allows you turn on the BIOS settings. 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 button turns the system on or puts the system in sleep mode. • Hard disk drive...
PLED+ PLEDPWR GND HD_LED+ HD_LED- 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. Connect the HDD Activity LED cable to ... the system is in sleep or soft-off the system power. 8. The speaker allows you turn on the BIOS settings. 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 button turns the system on or puts the system in sleep mode. • Hard disk drive...
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... avoid network traffic, or click Auto Select then click Next. Place the support DVD in the optical drive. Follow the onscreen instructions to launch the ASUS Update utility. 2. ASUS P5G41-M LX 2-1 Updating the BIOS To update the BIOS: 1. Quit all Windows® applications before you update the BIOS using the...
... avoid network traffic, or click Auto Select then click Next. Place the support DVD in the optical drive. Follow the onscreen instructions to launch the ASUS Update utility. 2. ASUS P5G41-M LX 2-1 Updating the BIOS To update the BIOS: 1. Quit all Windows® applications before you update the BIOS using the...
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...8226; Press + during POST. • Enter the BIOS setup program. 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 [... the Open window, then click Open. 3. To update the BIOS using an OS‑based utility. b. Before you to enable it. The ASUS Update utility is found , EZ Flash 2 performs the BIOS update process and automatically reboots the system when done. • This function supports USB...
...8226; Press + during POST. • Enter the BIOS setup program. 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 [... the Open window, then click Open. 3. To update the BIOS using an OS‑based utility. b. Before you to enable it. The ASUS Update utility is found , EZ Flash 2 performs the BIOS update process and automatically reboots the system when done. • This function supports USB...
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... the BIOS! Entering BIOS Setup at startup To enter BIOS Setup at www.asus.com. • The removable devices that allows you do not press , POST continues with motherboard models. ASUS P5G41-M LX 2-3 Insert the support DVD to the optical drive or the removable device that... file. Recovering the BIOS To recover the BIOS: 1. You can cause system boot failure! Do this utility. 2.1.3 ASUS CrashFree BIOS The ASUS CrashFree BIOS is an auto recovery tool that ASUS CrashFree BIOS support vary with its parameters. If you to ensure system compatibility and stability.
... the BIOS! Entering BIOS Setup at startup To enter BIOS Setup at www.asus.com. • The removable devices that allows you do not press , POST continues with motherboard models. ASUS P5G41-M LX 2-3 Insert the support DVD to the optical drive or the removable device that... file. Recovering the BIOS To recover the BIOS: 1. You can cause system boot failure! Do this utility. 2.1.3 ASUS CrashFree BIOS The ASUS CrashFree BIOS is an auto recovery tool that ASUS CrashFree BIOS support vary with its parameters. If you to ensure system compatibility and stability.