Intel AIMB-744 user manual Jumpers and Connectors, Industrial features, Label

1.3.6 Industrial features

•Watchdog timer: Can generate a system reset or IRQ11. The watch- dog timer is programmable, with each unit equal to one second or one minute (255 levels)

1.3.7 Mechanical and environmental specifications

•Operating temperature: 0°~60° C (32° ~ 140° F, Depending on CPU)

•Storage temperature: -20°~ 70° C (-4° ~ 158° F)

•Humidity: 20 ~ 95% non-condensing

•Power supply voltage: +3.3V, +5 V, ±12 V

•Power consumption: Typical : +3.3V:8.13A, +5V:0.57A , +12V:5.29A (Intel Pentium® 4 3.2GHz, 4GB DDR 400)

•Board size: 304.8 x 228.6 mm (12" x 9.6"")

•Board weight: 0.7 kg (1.68 lb)

1.4Jumpers and Connectors

Connectors on the AIMB-744 motherboard link it to external devices such as hard disk drives and a keyboard. In addition, the board has a num- ber of jumpers used to configure your system for your application.

The tables below list the function of each of the board jumpers and con- nectors. Later sections in this chapter give instructions on setting jump- ers. Chapter 2 gives instructions for connecting external devices to your motherboard.

Table 1.1: Jumpers

Label	Function
J1	CMOS Clear
J2	Watchdog timer output selection
J5	PCI-X 33/66Mhz selection 1
J6	PCI-X 33/66MHz selection 2
J8	PCI slots 3.3V/5V selection

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