EP-3VWM Form-Factor
The EP-3VWM is designed with MicroATX form factor - the new industry standard of chassis. MicroATX form factor is essentially a Baby-AT baseboard rotated 90 degrees within the chassis enclosure and a new mounting configuration for the power supply. With these changes the processor is relocated away from the expansion slots, allowing them all to hold full length add-in cards. MicroATX defines a double height aperture to the rear of the chassis which can be used to host a wide range of onboard I/O. Only the size and position of this aperture is defined, allowing PC manufacturers to add new I/O features (e.g.; TV input, TV output, joystick, modem, LAN, etc.) to systems. This will help systems integra- tors differentiate their products in the marketplace, and better meet your needs.
•By integrating more I/O down onto the board and better positioning the hard drive and floppy connectors material cost of cables and add-in cards is reduced.
•By reducing the number of cables and components in the system, manufactur- ing time and inventory holding costs are reduced and reliability will increase.
•By using an optimized power supply, it's possible to reduce cooling costs and lower acoustical noise. An ATX power supply, which has a side-mounted fan, allows direct cooling of the processor and add-in cards making a secondary fan or active heatsink unnecessary in most system applications.
Expandable I/O | Single chassis |
|
| fan for system |
| ATX |
| Power |
| Supply |
Full length | CPU located near |
slots | Power Supply |
| | | | | ATX power connector |
| Floppy / IDE | | | | |
| | | | |
| | 3 1/2" | 5 1/4" | |
| connectors | | |
| | Bay | Bay | |
| close to | | |
| | | | |
| peripheral | | | | |
| Figure 2: Summary of ATX chassis features |
| bays |
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