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HP and Compaq Desktop PCs - Motherboard Specifications, RC415ST-HM (Asterope5)

Motherboard specifications table

Part / Feature
Specification / Support
Motherboard description
  • Motherboard manufacturer's name: ECS RC415ST-HM
  • HP/Compaq name: Asterope5-GL8E
  • Socket: 775
  • Supports the following processors:
    • Core 2 Duo E4x00 with Dual Core technology (Conroe core) up to E4400 (2.0 GHz)
    • Pentium D 9xx with Dual Core technology (Presler core) up to 950 (3.4 GHz, C1 stepping)
    • Pentium 4 6x1 series (Cedar Mill core) up to 661 (3.6 GHz)
    • Celeron D 3xx series (Cedar Mill core) up to 360 (3.46 GHz)
    • Celeron D 3xx series (Prescott core) up to 355 (3.33 GHz)
Front-side bus (FSB) (Processor Dependent)
  • 800/533 MHz
  • ATI Radeon Xpress 1100
BIOS features
  • System BIOS core brand: AMI
  • Keyboard combination to used to enter BIOS: F10
Form factor
  • Micro-ATX: 9.6 in X 9.6 in
  • Single channel memory architecture
  • Two 240-pin DDR2 DIMM sockets
  • Supported DIMM types:
    • PC2-3200 (400 MHz)
    • PC2-4200 (533 MHz)
    • PC2-5300 (667 MHz) running at 533MHz
  • Non-ECC memory only, unbuffered
  • Supports 1 GB DDR2 DIMMs
  • Supports up to 2 GB
Expansion slots
  • Three PCI
  • One PCI Express x16 graphics (for a graphics card)
Video graphics
  • Integrated graphics using ATI Radeon Xpress 1100
  • Dynamically allocates up to 256 MB from PC memory
  • VGA output on back panel
  • Also supports PCI Express x16 graphics cards
Either integrated graphics or the PCI Express x16 slot are usable at one time; they are not usable concurrently.
Parallel ATA
  • One 40-pin UltraDMA 100/66/33 connector
  • Supports PIO, multi-word DMA modes
  • Supports two PATA disk drives on a PATA ribbon cable (two drives total)
Serial ATA
  • Four SATA connectors:
    • SATA1 = Black
    • SATA2 = White
    • SATA3 = Blue
    • SATA4 = Yellow
  • Supports 1 SATA-150 or SATA-300 disk drive on each SATA connector
  • Speed up to 1.5Gb/sec or 3.0Gb/sec, complying with SATA 1.0 and SATA 2.0 specifications
The faster rate of 3.0Gb/sec requires that both the hard drive and the motherboard support it. If one or the other does not support 3.0 Gb/sec, the PC negotiates down to the slower 1.5 Gb/sec.
Onboard audio
  • 6-channel high-definition audio
  • Audio CODEC: Realtek ALC888
Onboard LAN
  • Realtek RTL8100 10/100 Mbps LAN PHY
Onboard USB
  • USB 2.0
  • Ten ports total
    • Four connectors on back panel
    • Three headers on motherboard support 6 additional ports/devices
Some USB ports may not be available externally for customer use. For more information, see model specifications.
Onboard 1394
  • Type: IEEE 1394a 400Mb/s
  • VIA VT6308 controller chip
  • Two ports total
    • One port on back panel
    • One header on motherboard supporting 1 additional port/device
Back panel I/0
  • One PS/2 mouse port (green)
  • One PS/2 keyboard port (purple)
  • One SPDIF coaxial port
  • One S-Video port
  • One Parallel port
  • One VGA port
  • Four USB 2.0
  • One IEEE 1394a
  • One RJ-45 networking port
  • Six audio ports support 8-channel audio:
    • Line-in (light blue)
    • Microphone-in (pink)
    • Line-out (lime)
    • Center/subwoofer (yellow orange)
    • Side speaker out (gray)
    • Rear speaker out (black)
Internal connectors
  • One 24-pin ATX power connector
  • One 4-pin ATX power connector
  • One PATA connector
  • Four SATA connectors
  • One floppy drive connector
  • Two 12V fans for CPU fan and PC fan
  • One 9-pin header for power button, reset button, power LED, and HDD LED
  • One line input connector (white, Vista capable, requires matching front audio jack module)
  • One 9-pin audio header for headphone-out and microphone-in (yellow, Vista capable, requires matching front audio jack module)
  • One SPDIF output header
  • Three USB headers supporting 6 USB ports or devices
  • One jumper for resetting BIOS settings
  • One jumper to disable BIOS password checking
Motherboard specifications are subject to change without notice.

Motherboard layout and photos

Figure : Photograph
    Figure : Backplate
  1. PS/2 mouse port (green). This port is for a PS/2 mouse.
  2. Parallel (LPT1): connect printers or other parallel communications (LPT1) devices.
  3. IEEE 1394 port. This 9-pin IEEE 1394 port provides high-speed connectivity for audio/video devices, storage peripherals, PCs, or portable devices.
  4. LAN (RJ-45) port. This port allows connection to a Local Area Network (LAN) through a network hub.
  5. Rear Speaker Out port (black). This port connects to the rear speakers.
  6. Center/Subwoofer port (yellow orange). This port connects the center/subwoofer speakers.
  7. Line In port (light blue). This port connects a tape, CD, DVD player, or other audio sources.
  8. Line Out port (lime). This port connects to headphones or it can function as Front Speakers Out.
  9. Microphone port (pink). This port connects a microphone.
  10. Side Speaker Out port (gray). This port connects to the side speakers.
  11. USB 2.0 ports 1, 2, 3, and 4. These four 4-pin Universal Serial Bus (USB) ports are available for connecting USB 2.0 devices.
  12. Video Graphics Adapter port. This port is for a VGA monitor or other VGA-compatible devices.
  13. S-Video Out: This port connects a video cassette recorder, camcorder, or television with S-video interface.
  14. SPDIF coaxial out port (orange). This port connects to external audio devices with coaxial cable.
  15. PS/2 keyboard port (purple). This port is for a PS/2 keyboard.

Clearing the BIOS settings

Do not change any jumper setting while the computer is on. Damage to the motherboard can result.
This motherboard has a jumper to clear the Real Time Clock (RTC) RAM in CMOS.

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.
  3. When you startup 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 CLEAR_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 F10 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 turn off the computer and reset the jumper to pins 1-2.






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