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Motherboard Specifications, A7N8X-LA (Explorer 2)

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Motherboard specifications table

Motherboard Description
  • Manufacturer's name - ASUS A7N8X-LA
  • HP/Compaq name - Explorer 2
Motherboard SupplierASUS
System BIOS SupplierASUS/AMI
Form FactoruATX
Processor BrandAMD
Processor Socket TypeSocket A (PGA462)
Processor FamilyAthlon XP (Barton, Thoroughbred, Palomino)
Maximum approved processorAthlon XP 3000+ processor (2.16 GHz/333MHz)
Processor FSB Frequency266/333 MHz
Chipset NameNVIDIA nForce2
Chipset 'Northbridge', Revision/SteppingIGP, A03
Chipset 'Southbridge', Revision/SteppingMPC2, A04
Super I/O, Revision/SteppingITE, 8712F-A
Flash BIOS Device4 Mbit
Memory TypeDDR
Memory SpeedPC2700/PC2100
Memory Sockets2DDR DIMM (184-pin)
Maximum Memory2 GB (PC manufacturer's maximum memory may differ)
Graphics SupplierNVIDIA nForce2
Graphics ConfigurationOn-Board
Onboard Graphics MemoryUMA up to 128 MB
Graphics ConnectorAGP 8X
TV-Out DeviceNo
TV-Out ConfigurationNo
AudioAC'97 On-Board
AC'97 CODEC DeviceRealtek ALC650
Audio JacksMicrophone, Line-In, Line-Out, Speaker, MIDI/Game
External Audio ConnectorsMicrophone, Line-In
Ethernet 10/100 LAN SupplierRealtek 8201BL
Ethernet ConfigurationIntegrated, On-Board
IDE UDMA ModesATA-133/100/66/33
Expansion SlotsAGP 8X, Three PCI
USB PortsSix USB 2.0 (2 front, 4 back)
External PortsOne Serial, One Parallel, One Floppy, PS/2 Keyboard, PS/2 Mouse, One 1394 (front)
Serial Port Front Chassis OptionNo
Available Manufacturer On-Board Options Graphics, Lan, 1394, 6 Speaker Mode (Dolby 5.1)

Motherboard layout and photos

Figure 1: Photograph
Figure 2: Layout
Figure 3: Backplate
1 - Mouse
2 - Parallel
3 - IEEE 1394 FireWire
4 - Local Area Network
5 - Line-In
6 - Line-Out
7 - Microphone
8 - USB 2.0
9 - VGA
10 - Serial
11 - Keyboard

Clearing the CMOS settings

CAUTION:Do not change any jumper setting while the system is running. Damage to the motherboard may result.
The Clear RTC RAM (3-pin CLRTC) jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. It also allows clearing of date, time, and system setup parameter memories in CMOS, by erasing the RTC RAM data. The onboard button cell battery powers the RAM data in CMOS, including system setup information.
  1. Turn off the PC and unplug the power cord.
  2. Move the CLRTC jumper cap from pins 1-2 (normal) to pins 2-3 (clear CMOS).
  3. Keep the CLRTC jumper cap on pins 2-3 for 5 to 10 seconds, then move it back to pins 1-2.
  4. Plug in the power cord and turn on the PC.
  5. Press F1 as the PC starts to enter BIOS setup and change the BIOS settings.

Changing the BIOS password

The BIOS password protects the BIOS from undesired changes (password checking is disabled by default for this motherboard). If password checking is enabled, and you need to disable it, use the following steps:
  1. Turn off the PC and unplug the power cord.
  2. Move the J11 jumper cap from pins 2-3 to pins 1-2 to enter clear the password.
  3. Turn on the PC and press F1 to enter BIOS setup.
  4. Clear or reset the BIOS password.
  5. Save the BIOS settings and turn off the PC.
  6. If desired, reactivate BIOS password checking by returning the J11 jumper cap to pins 1-2.

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