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HP and Compaq Desktop PCs - Motherboard Specifications, RC415ST-HM (Alhena5)
Figure 1: The RC415ST-HM (Alhena5) motherboard
Front-side bus speed
Processor upgrade information
Socket type: 775
Motherboard supports the following processor upgrades:
Memory upgrade information
*Integrated video is not available if a graphics card is installed.
Integrated Realtek ALC888 Audio
Back I/O ports
Figure 2: Back I/O panel
1 - PS/2 mouse (green)
2 - RJ-45 Network (LAN)
3 - Audio: Line Out (lime)
4 - Audio: Line In (light blue)
5 - Audio: Microphone (pink)
6 - USB 2.0: 4
7 - Video Graphics Adapter
8 - PS/2 keyboard (purple)
Figure 3: layout
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 clear the Real Time Clock (RTC) RAM in CMOS.
To clear CMOS, follow these steps:
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: