Parts of the Motherboard in an HP Omnibook Xe3

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Parts of the Motherboard in an HP Omnibook Xe3
The HP Omnibook Xe3 laptop uses ASUS motherboards. (electronics image by Goran Bogicevic from

Hewlett Packard Omnibook Xe3 notebook computer motherboards are manufactured by the ASUS Computer Company. Hewlett Packard buys pre-configured motherboards from ASUS through a contracting agreement. The HP model name for the motherboard from ASUS is called "Phoenix" A8SN-CF.

Motherboard Size

The size of the casing on the average Omnibook Xe3 ranges from 10 by 9.5 inches, which allows for motherboard components space to circulate air through the system unit fan mechanism. The motherboard size for the Omnibook Xe3 is 9.6 by 8.6 inches. The board is sturdy and manufactured with hard-grade plastic.

System BIOS

The system BIOS jumper contains all the pre-boot instructions for the laptop. These instructions are resident in Read Only Memory (ROM). The system BIOS operates from "jumper" settings on the lower right-hand edge of the mother board. The BIOS has a two-pin jumper designation with the first jumper carrying the binary bit of "0" and the second jumper designated as "1" or "off."

CPU Processor Chip

The HP Omnibook Xe3 supports a Socket 1 AMD Turion 64X series processor. The Turin processor is located at the south end of the board with the bus lines leading from the CPU to the architecture of the main board. The processor receives all of its call processes and routines through this section of the motherboard.

Memory Support

The motherboard has support for two banks of memory. The supported memory, PC2-4200 DDR2 DIMMs and PC2-5300 DDR2 DIMMs are the modules used on the main board. Housing for the memory modules are located in the northeast section of the board. The DDR modules consist of 200-pin connectors for optimised memory allocation to chipsets, input/output devices and software applications.


The CPU fan is the most important module on the motherboard. Without the fan, the CPU chip will overheat and malfunction. The fan has its own connectivity cord to the power regulator, which regulates electrical voltage for the entire motherboard. A generic CPU fan can be used in conjunction with the CPU unit.

Auxiliary Parts

The Omnibook Xe3 motherboard has automatic LAN support integrated into the motherboard, NVIDIA G73M-256 discrete graphics module integrated into the chipset for video capabilities and on-board audio codec support. The bus configuration that controls the motherboard chipset function is the NVIDIA GeForce 6100.

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