HP and Compaq Desktop PCs - Motherboard Specifications, MOCA-AR (Calcite)

Figure 1: The MOCA-AR (Calcite) motherboard

Motherboard description

Manufacturer's motherboard name: Asus MOCA-AR
HP/Compaq name: Calcite-GL8E

Form Factor

Mini-ITX: 17.3 cm (6.8 inches) x 17.0 cm (6.7 inches)

Chipset

Intel 945GT

Front-side bus speed

533/667 MHz (processor dependent)

Processor upgrade information

Socket type: 479M

Motherboard supports the following processor upgrades:

Intel Core 2 Duo T7x00 (Merom)
Intel Core 2 Duo T2x00 (Yonah) up to T2700
Intel Core Solo T1x00 (Yonah)
Intel Celeron M 4x0

Memory upgrade information

Dual-channel memory architecture
2 x 200-pin SO-DIMM sockets support unbuffered non-ECC 533 MHZ DDR2 memory modules
Maximum HP/Compaq approved memory is 2 GB

Video

Integrated

*Integrated video is not available if a graphics card is installed.

Audio

Integrated Realtek ALC883S Audio

*Integrated audio is not available if a sound card is installed

Built-in Azalia 8 channel audio
Realtek ALC883 8-channel High Definition Audio CODEC

Network

LAN: 10-Base-T

Interface: Integrated into motherboard
Technology: Realtek RTL8100
Data transfer speeds: up to 10/100 Mb/s
Transmission standards: 10-Base-T Ethernet

Expansion Slots

One PCI Express x16

I/O Ports

Back I/O ports

Figure 2: Back I/O panel

1 - PS/2 mouse (green)

2 - Composite Video out

3 - IEEE 1394a

4 - RJ-45 Network (LAN)

5 - Audio: Rear Speaker Out

6 - Audio: Center/Subwoofer (yellow orange)

7 - Audio: Line In (light blue)

8 - Audio: Line Out (lime)

9 - Audio: Microphone (pink)

10 - Audio: Side Speaker Out (gray)

11 - USB 2.0: 4

12 - Video Graphics Adapter

13 - Coaxial SPDIF Out .

14 - S-Video

15 - PS/2 keyboard (purple)

Internal Connectors

One ATX 24-pin power connector
One Parallel ATA connectors
Two Serial ATA connectors
One PC fan connector
One system panel header for power button, reset button, power LED, and HDD LED
One audio header for headphone-out and microphone-in
One line input header
Two USB 2.0 connectors supporting 4 additional USB 2.0 ports
One IEEE 1394a connector

Motherboard layout

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:

Reset the BIOS settings in CMOS RAM to their default values.

Clearing CMOS

To clear CMOS, follow these steps:

Temporarily set jumper CLRTC1 to pins 1-2.

WARNING: Do NOT start the system with this jumper set to pins 1-2.
Wait 5-10 seconds and then return the jumper to pins 2-3.

You may now restart the system.

Clearing the BIOS password

This motherboard has a jumper to disable password checking.

To disable BIOS password checking:

Move the jumper CLPWD1 to pins 1 and 2.
You may now start the computer, enter BIOS setup, and change or erase the password.
To enable BIOS password checking, replace the jumper on pins 2-3.

Additional Jumper J6

The motherboard may include an additional jumper J6. This jumper will have pins 1-2 bridged and should not be changed.

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HP and Compaq Desktop PCs - Motherboard Specifications, MOCA-AR (Calcite)