» Contact HP

Motherboard Specifications, A7N8X-LA (Explorer 4)

» HP Customer Care

Support options

Discover More

Give us feedback

This document:

» Was helpful
!!!starts!!!
Was helpful
How was this document helpful

Though a personal response will not be provided, we value your comments. HP is continually striving to improve the usefulness of the information provided on the site.
Thank you for taking the time to provide this information. This will help us to provide a better Hewlett-Packard web experience in the future.
!!!stops!!!
» Was not helpful
!!!starts!!!
Was not helpful
How can we improve this document

Though a personal response will not be provided, we value your comments. HP is continually striving to improve the usefulness of the information provided on the site.
Thank you for taking the time to provide this information. This will help us to provide a better Hewlett-Packard web experience in the future.
!!!stops!!!
» Does not apply
!!!starts!!!
Does not apply
What were you looking for

Though a personal response will not be provided, we value your comments. HP is continually striving to improve the usefulness of the information provided on the site.
Thank you for taking the time to provide this information. This will help us to provide a better Hewlett-Packard web experience in the future.
!!!stops!!!

Support details

» Motherboard specification table

» Motherboard layout and photos

» Clearing the CMOS settings

» Changing the BIOS password

Motherboard specification table

Motherboard Part/Feature	Specification/Support
Motherboard Description	MB manufacturer name: ASUS A7N8X-LA HP/Compaq name: Explorer4-GL6E
CPU	Socket A AMD Duron/Athlon XP/Barton Maximum approved processor: Athlon XP 3200+ processor-Barton core (2.20 GHz/400MHz)
Chipset	Northbridge: NVIDIA nForce2 IGP Southbridge: NVIDIA MCP2-T
Front Side BUS (FSB)	400/333/266 MHz
Memory	Two 184-pin DDR DIMM sockets Unbuffered PC 2700/2100 non-ECC DDR RAM Maximum 2 GB (PC manufacturer maximum memory may differ)
Expansion Slots	Three PCI One AGP 8x/4x (1.5V only)
IDE	Two UltraDMA 133/100/66/33 MHz
Audio	Realtek ALC650 Six channel configurable Built-in HP amplifier
LAN	One RJ-45 port Support for 10/100Mbps Realtek RTL8201BL PHY
Special Features	Wake-up-on-Ring Wake-on-LAN Wake-on-Keyboard Wake-on-Mouse RTC Timer Support ACPI STR(S3) function Restart/Off Setup of AC Recovery from power failure
Back Panel I/O Ports	One parallel One serial One PS/2 keyboard One PS/2 mouse One VGA port One RJ45 port One audio I/O Four USB 2.0 One IEEE 1394
Internal I/O Connectors	20-pin ATX power connector One CPU fan One chassis fan One front MIC-IN header One CD_IN header One TV-OUT header One AUX-IN for front LINE-IN One HP-SPEAKER connector One onboard 1394 header One HPANEL header
BIOS Features	4Mb Flash ROM Award BIOS TCAV PnP DMI 2.0 DMI Green
Industry Standard	PCI 2.2 USB 1.1/2.0
Manageability	dmi 2.0 WOL WOR Chassis Intrusion SM Bus
Form Factor	Micro-ATX 9.6 inches x 9.6 inches (24.38 cm x 34.38 cm)

Motherboard layout and photos

Figure 1: Layout

Figure 2: Photo

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

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.

CAUTION:

Do not change any jumper setting while the system is running. Damage to the motherboard may result.

Turn off the PC and unplug the power cord.
Move the CLRTC jumper cap from pins 1-2 (normal) to pins 2-3 (clear CMOS).
Keep the CLRTC jumper cap on pins 2-3 for 5 to 10 seconds, then move it back to pins 1-2.
Plug in the power cord and turn on the PC.
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:

Turn off the PC and unplug the power cord.
Move the J11 jumper cap from pins 2-3 to pins 1-2 to enter clear the password.
Turn on the PC and press F1 to enter BIOS setup .
Clear or reset the BIOS password.
Save the BIOS settings and turn off the PC.
If desired, reactivate BIOS password checking by returning the J11 jumper cap to pins 1-2.