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Motherboard Specifications, P5LP-LE (Altair)

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Motherboard specifications table
Part / FeatureSpecification / Support
Motherboard description
  • Motherboard manufacturer's name: ASUS P5RC-LE
  • HP/Compaq name: Altair-GL8
CPU/Processor
  • Socket: 775
  • Supports the following processors:
    • Pentium D 900 series Dual Core up to 950 (Pressler, 65nm)
    • Pentium D 800 series Dual Core (Smithfield, 90nm)
    • Pentium 4 601 series up to 661 (Cedar Mill, 65nm)
    • Pentium 4 600 series up to 650 (Prescott, 90nm)
    • Pentium 4 500 series up to 551 (Prescott, 90nm)
    • Celeron D up to 360 (Cedar Mill, 65nm)
    • Celeron D up to 355 (Prescott, 90nm)
Front-side bus (FSB)
  • 800/533 MHz (processor dependent)
Chipset
  • ATI Radeon Xpress 200 for Intel Processors
BIOS features
  • Award brand system BIOS
  • Keyboard combination to used to enter BIOS: F1
Form factor
  • Micro-ATX: 9.6 in X 8.6 in
Memory
  • Two 184-pin DDR DIMM sockets
  • Supports PC 3200 (400 MHz), DDR DIMMs
  • Maximum HP/Compaq approved memory is 2 GB
Expansion slots
  • Three PCI
  • One PCI Express x16 graphics
Video graphics
  • Integrated
  • Supports PCI Express x16 graphics cards
Serial ATA
  • 4 SATA connectors
  • Each connector supports 1 serial ATA-150 disk drive
Parallel ATA
  • 2 PATA connectors
  • Each connector supports 2 Parallel ATA disk drives on each PATA ribbon cable (4 drives total)
Onboard audio
  • Built-in High Definition 8 channel audio
  • Realtek ALC883 Audio CODEC
Onboard LAN
  • Realtek RTL8101L
  • 10/100 Mbps Fast Ethernet
Back panel I/0
  • One PS/2 mouse port (green)
  • One PS/2 keyboard port (purple)
  • One coaxial SPDIF out
  • One VGA out
  • Four USB 2.0
  • One RJ-45 networking port
  • Audio ports:
    • line in (light blue)
    • microphone (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
  • Two PATA connectors
  • Four SATA connectors
  • One floppy drive connector
  • Two 12v fan connectors for CPU fan and PC fan
  • One 9-pin header for power button, reset button, power LED, and HDD LED
  • One SPDIF-Audio output connector
  • One line input connector
  • One 9-pin audio header for headphone-out and microphone-in
  • Two USB 2.0 connectors supporting 4 additional USB 2.0 ports
NOTE: Motherboard specifications are subject to change without notice.
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Motherboard layout and photos
1 - PS/2 mouse port (green). This port is for a PS/2 mouse.
2 - LAN (RJ-45) port. This port allows connection to a Local Area Network (LAN) through a network hub.
3 - Rear Speaker Out port (black). This port connects to the rear speakers on a 4-channel, 6-channel, or 8-channel audio configuration.
4 - Center/Subwoofer port (yellow orange). This port connects the center/subwoofer speakers.
5 - Line In port (light blue). This port connects a tape, CD, DVD player or other audio sources.
6 - 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.
7 - Microphone port (pink). This port connects a microphone.
8 - Side Speaker Out port (gray). This port connects to the side speakers in an 8-channel audio configuration.
9 - 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.
10 - Video Graphics Adapter port. This 15-pin port is for a VGA monitor or other VGA-compatible devices.
11 - Coaxial SPDIF Out port. This port connects an external audio output device via a coaxial SPDIF cable.
12 - 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.
Figure 1: Jumper locations
Clearing CMOS
To clear CMOS, follow these steps:
  1. To clear CMOS settings, temporarily set jumper CLEAR_CMOS to pins 2-4.
  2. Wait 5-10 seconds and then return the jumper to pins 4-6.
  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_PW. The jumper is found at the upper right corner of the motherboard.
  3. Move the jumper on jumper CLEAR_PW to pins 1-3.
  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 turn off the computer and reset the jumper to pins 3-5.
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