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Motherboard Specifications, 945GCT-HM (Livermore)

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Figure 1: The 945GCT-HM (Livermore) motherboard
  • Manufacturer's motherboard name: ECS 945GCT-HM
  • HP/Compaq name: Livermore-GL6
  • Micro-ATX: 24.4 cm (9.6 inches) x 24.4 cm (9.6 inches)
  • Intel 945GC
  • 800/533 MHz (processor dependent)
Socket type: 775
Motherboard supports the following processor upgrades:
  • Core 2 Duo (Conroe) up to E4300
  • Pentium D (Presler) up to 960 (3.6 GHz)
  • Pentium 4 (Cedar Mill) up to 661 (3.6 GHz)
  • Celeron D (Cedar Mill) up to 365 (3.6 GHz)
  • Celeron D (Prescott) up to 355 (3.33GHz)
  • Dual channel memory architecture
  • Two 240-pin DDR2 DIMM sockets
  • Supported DIMM types:
    • PC2-3200 (400 MHz)
    • PC2-4200 (533 MHz)
    • PC2-5300 (667 MHz, runs at 533 MHz)
  • Non-ECC memory only, unbuffered
  • Supports 1 GB DDR2 DIMMs
  • Supports up to 2 GB
*Integrated video is not available if a graphics card is installed.
  • Integrated graphics using Intel GMA 950
  • Use up to 256MB of PC memory (with 512MB or more total PC memory)
  • Also supports PCI Express x16 graphics cards
  • 6-channel high-definition audio
  • Audio CODEC: ALC888
  • Interface: Integrated into motherboard
  • Technology: Realtek RTL8201E
  • Data transfer speeds: up to 10/100Mb/s
  • Transmission standards:10-Base-T Ethernet
  • One PCI Express x16
  • One PCI Express x1
  • Two PCI
Figure 2: Back I/O panel
1 - PS/2 mouse (green)
2 - RJ-45 Network (LAN)
3 - Audio: Line In (light blue)
4 - Audio: Line Out (lime)
5 - Audio: Microphone (pink)
6 - USB 2.0: 2
7 - Video Graphics Adapter
8 - PS/2 keyboard (purple)
  • One 24-pin ATX power connector
  • One 4-pin ATX power connector
  • One PATA connector
  • Two 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 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)
  • Two USB headers supporting 4 USB 2.0 ports or devices
  • One Intel high-definition Audio/Modem Link (Not used by HP)
  • One jumper for resetting BIOS settings
  • One jumper to disable BIOS password checking
Figure 3: layout
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:
  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.
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.
  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 reset the jumper to pins 1-2.

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