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HP and Compaq Desktop PCs - Motherboard Specifications, RC410-M (Alhena)

Motherboard specifications table

Part / Feature
Specification / Support
Motherboard description
  • Motherboard manufacturer's name: ECS RC410-M
  • HP/Compaq name: Alhena-GL6
CPU/Processor
  • Socket: 775
  • Supports the following processors:
    • Pentium D 900 series Dual Core (Pressler, 65nm)
    • Pentium D 800 series Dual Core (Smithfield, 90nm)
    • Pentium 4 601 series (Cedar Mill, 65nm)
    • Pentium 4 600 series (Prescott, 90nm)
    • Pentium 4 500 and 501 series (Prescott, 90nm)
    • Celeron D series (Prescott, 90nm)
Front-side bus (FSB)
  • 800/533 MHz (processor dependent)
Chipset
  • ATI Radeon Xpress 200 for Intel Processors
    • ATI RC410 Northbridge
    • ATI SB450 Southbridge
BIOS features
  • System BIOS core brand: Award
  • Keyboard combination to used to enter BIOS: F1
Form factor
  • Micro ATX size form factor, 9.6 in x 9.6 in
Memory
  • Single-channel memory architecture
  • 2 x 240-pin DIMM sockets support unbuffered non-ECC 400/533 MHZ DDR2 memory modules
  • Maximum HP/Compaq approved memory is 2 GB
Expansion slots
  • Three PCI
  • One PCI Express x16
Video graphics
  • Integrated
  • Supports PCI Express x16 graphics cards
Onboard audio
  • Built-in Azalia 8 channel audio

  • Realtek ALC888 8-channel High Definition Audio CODEC

Onboard LAN
  • Realtek RTL8100 10/100 Mbps Fast Ethernet controller
Back panel I/O
  • One PS/2 keyboard (purple)
  • One PS/2 mouse (green)
  • One VGA out port
  • Two USB (2.0)
  • One RJ-45 networking port (LAN)
  • Audio ports:
    • Line-in (light blue)
    • Line-out (lime)
    • Microphone-in (pink)
Internal connectors
  • One 24-pin ATX power connector
  • One 4-pin ATX +12v power connector
  • Two Parallel ATA connectors
  • Two Serial ATA connectors
  • One floppy drive connector
  • One CPU fan connector
  • One PC fan connector
  • One 9-pin header for power button, reset etc.
  • One 9-pin audio header for headphone-out and microphone-out
  • SPDIF output header
  • Two USB Headers (supporting 4 USB ports or devices) on the motherboard.
NOTE: Motherboard specifications are subject to change without notice.

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Motherboard layout and photos

Figure 1: layout

Figure 2: Photograph

Figure 3: Backplate

1 - PS/2 mouse port (green). This port is for a PS/2 mouse.
2 - LAN (RJ-45) port. This port allows 10/100 connection to a Local Area Network (LAN) through a network hub.
3 - Line Out port (lime). This port connects a headphone or a speaker. In 4-channel, 6-channel, and 8-channel mode, the function of this port becomes Front Speaker Out.
4 - Line In port (light blue). This port connects a tape player or other audio sources.
5 - Microphone port (pink). This port connects a microphone.
6 - USB 2.0 ports 1, and 2. These two 4-pin Universal Serial Bus (USB) ports are available for connecting USB 2.0 devices.
7 - Video Graphics Adapter port. This port is for a VGA monitor or other VGA-compatible devices.
8 - PS/2 keyboard port (purple). This port is for a PS/2 keyboard.

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Clearing the BIOS settings

CAUTION: Do not change any jumper setting while the computer is on. Damage to the motherboard can result.

This motherboard has jumpers to:

  1. Clear the Real Time Clock (RTC) RAM in CMOS.

  2. Disable password checking.

Clearing CMOS

To clear CMOS, follow these steps:

  1. Temporarily set jumper CLR_CMOS_HP to pins 2-3.

  2. Wait 5-10 seconds and then return the jumper to pins 1-2.

    When you start the PC you will need to enter BIOS setup to reset any custom BIOS settings.

Clearing the BIOS password

The BIOS password is used to protect BIOS settings from unwanted changes. If you have forgotten your password you may disable password checking.

To erase the BIOS password follow these steps:

  1. Turn OFF the computer and unplug the power cord.

  2. Locate the jumper labeled CLR_PWD. The jumper is found at the lower right edge of the motherboard, near the SATA connectors.

  3. Move the jumper on jumper CLR_PWD to pins 2-3.

  4. Plug the power cord and turn ON the computer.

  5. Hold down the F1 key during the startup process and enter BIOS setup to change or clear the password.

  6. After changing or clearing the BIOS passwords, remember to reset the jumper to pins 1-2.

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