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ASUS K8N8X-LA (Dom) Motherboard

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11. System panel connector (10-pin FRONT_PANEL)

This connector accommodates several system front panel functions.

System Power LED Lead (2-pin PLED)

This 3-1 pin connector connects to the system power LED.  The LED lights up
when you turn on the system power, and blinks when the system is in sleep
mode.

Hard Disk Activity LED Lead (2-pin HDLED)

This 2-pin connector is for the HDD LED cable. The read or write activities of
the device connected to the any of IDE connectors cause the IDE LED to light
up.

ATX Power Switch / Soft-Off Switch Lead (2-pin PWR)

This connector connects a switch that controls the system power.  Pressing the
power switch turns the system between ON and SLEEP, or ON and SOFT
OFF, depending on the BIOS or OS settings.  Pressing the power switch while
in the ON mode for more than 4 seconds turns the system OFF.

Reset Switch Lead (2-pin RESET)

This 2-pin connector connects to the case-mounted reset switch for rebooting
the system without turning off the system power.

K8N8X-LA Front Panel Connector

FRONT_PANEL

PLED-

PWR

PLED+

Ground

GND

Reset

HDLED+

HDLED-

Power LED

Reset SW

ATX Power
Switch*

HDLED

K8N8X-LA

Summary of Contents for K8N8X-LA

Page 1: ...Motherboard K8N8X LA Dom User Guide ...

Page 2: ... Processing Unit CPU 2 Installing the CPU 2 3 System memory 3 Installing a DIMM 3 4 Expansion slots 4 Standard interrupt assignments 4 IRQ assignments for this motherboard 4 PCI slots 5 AGP slot 5 5 Jumpers 6 6 Connectors 8 Product Name K8N8X LA Dom Manual Revision E1601 Release Date March 2004 ...

Page 3: ... monitoring of CPU and system fan rotations and CPU temperature 1 x Parallel port 1 x Serial port 1 x PS 2 keyboard port 1 x PS 2 mouse port 4 x USB 2 0 ports 1 x RJ 45 port 1 x IEEE 1394 port Line In Line Out Microphone ports 2 x USB 2 0 connectors for additional 4 USB ports 1 x IEEE 1394 connector for additional 1394 port CPU fan connector 20 pin ATX power connector 4 pin ATX power connector S P...

Page 4: ...iv ...

Page 5: ...TI TSB43AB22A Socket 754 24 5cm 9 64in SECONDARY_IDE 1394 Top USB1 USB2 Bottom CLRTC BUZZER1 BAT1 FRONT_1394 DDR DIMM2 64 72 bit 184 pin module DDR DIMM1 64 72 bit 184 pin module PS 2 T Mouse B Keyboard COM1 PARALLEL PORT Below Mic In Center Line Out Top Line In RJ 45 Top USB1 USB2 Bottom PCI 2 PCI 3 ALC650 F1 FRONT_USB1 FRONT_PANEL1 ATX12V PRIMARY_IDE CPU_FAN SPDI F AUX_IN CD_IN FRONT_AUDIO FRONT...

Page 6: ...rrecting Code ECC protection for L1 and L2 cache data and DRAM ECC protection with chipkill Installing the CPU Follow these steps to install a CPU 1 Locate the Socket 754 and open it by pulling the lever gently sideways away from the socket Then lift the lever upwards The socket lever must be fully opened 90 to 100 degrees 2 Insert the CPU with the correct orientation Position the CPU above the so...

Page 7: ...board and the components Follow these steps to install a DIMM 1 Unlock a DIMM socket by pressing the retaining clips outward 2 Align a DIMM on the socket such that the notch on the DIMM matches the break on the socket 3 Firmly insert the DIMM into the socket until the retaining clips snap back in place and the DIMM is properly seated Installing a DIMM You may install 64MB 128MB 256MB 512MB and 1GB...

Page 8: ...oard Controller 2 N A Programmable Interrupt 3 11 Communications Port COM2 4 12 Communications Port COM1 5 13 Sound Card sometimes LPT2 6 14 Floppy Disk Controller 7 15 Printer Port LPT1 8 3 System CMOS Real Time Clock 9 4 ACPI Mode when used 10 5 IRQ holder for PCI steering 11 6 IRQ holder for PCI steering 12 7 PS 2 Compatible Mouse Port 13 8 Numeric Data Processor 14 9 Primary IDE Channel 15 10 ...

Page 9: ...th PCI specifications The figure below shows a typical PCI card installed into a slot AGP slot This motherboard has an Accelerated Graphics Port AGP slot that supports AGP 8X cards When you buy an AGP card make sure that you ask for one with 1 5V specification Note the notches on the card golden fingers to ensure that they fit the AGP slot on your motherboard K8N8X LA Accelerated Graphics Port AGP...

Page 10: ...ase the RTC RAM 1 Turn OFF the computer and unplug the power cord 2 Move the jumper cap from pins 2 3 Default to pins 1 2 Clear CMOS Keep the cap on pins 1 2 for about 5 10 seconds then move the cap back to pins 2 3 3 Plug the power cord and turn ON the computer 4 Hold down the F1 key during the boot process and enter BIOS setup to re enter data Except when clearing the RTC RAM never remove the ju...

Page 11: ...o re enter data K8N8X LA Clear Password Setting CLPWD K8N8X LA Normal Default 3 2 Clear Password 2 1 6 Connectors This section describes and illustrates the internal connectors on the motherboard 1 Floppy disk drive connector 34 1 pin FLOPPY This connector supports the provided floppy drive ribbon cable After connecting one end to the motherboard connect the other end to the floppy drive Pin 5 is ...

Page 12: ...become unstable and may experience difficulty powering up if the power supply is inadequate K8N8X LA ATX Power Connector ATXPWR 3 3VDC 12 0VDC COM PS_ON COM COM COM 5 0VDC 5 0VDC 5 0VDC PWR_OK 12 0VDC 3 3VDC 3 3VDC COM 5 0VDC COM 5 0VDC COM 5VSB ATX12V 12V DC GND 12V DC GND K8N8X LA 3 Serial ATA connectors 7 pin SATA1 SATA0 These next generation connectors support the thin Serial ATA cables for pr...

Page 13: ...y setting its jumper accordingly Refer to the hard disk documentation for the jumper settings BIOS supports specific device bootup If you have more than two UltraDMA100 66 33 devices purchase another UltraDMA100 66 33 cable You may configure two hard disks to be both master devices with two ribbon cables one for the primary IDE connector and another for the secondary IDE connector 1 Pin 20 on each...

Page 14: ...the fan connectors Lack of sufficient air flow within the system may damage the motherboard components These are not jumpers DO NOT place jumper caps on the fan connectors 6 Internal audio connectors 4 pin CD_IN AUX_IN These connectors allow you to receive stereo audio input from sound sources such as a CD ROM TV tuner or MPEG card K8N8X LA 12 Volt Cooling Fan Power CHA_FAN CPU_FAN GND Rotation 12...

Page 15: ...complies with USB 2 0 specification that supports up to 480 Mbps connection speed This speed advantage over the conventional 12 Mbps on USB 1 1 allows faster Internet connection interactive gaming and simultaneous running of high speed peripherals You may connect a USB module to the USB header NEVER connect a USB cable to any of the IEEE 1394 connectors Doing so will damage the motherboard The USB...

Page 16: ...O BLINE_OUT_L MIC2 Line out_R Line out_L BLINE_OUT_R NC MICPWR 5VA AGND K8N8X LA K8N8X LA Digital Audio Interface SPDI F SPDIFOUT 5V Ground K8N8X LA 9 Front panel audio connector 10 1 pin FRONT_AUDIO This is an interface for the Intel front panel audio cable that allow convenient connection and control of audio devices By default the pins labeled LINE_OUT_R BLINE_OUT_R and the pins LINE_OUT_L BLIN...

Page 17: ...the any of IDE connectors cause the IDE LED to light up ATX Power Switch Soft Off Switch Lead 2 pin PWR This connector connects a switch that controls the system power Pressing the power switch turns the system between ON and SLEEP or ON and SOFT OFF depending on the BIOS or OS settings Pressing the power switch while in the ON mode for more than 4 seconds turns the system OFF Reset Switch Lead 2 ...

Page 18: ...14 ASUS K8N8X LA Dom Motherboard ...

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