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Chapter 2

 

 

(13). CD1 and AUX1 Headers

These connectors connect to the audio output of internal CD-ROM drive or add-on card.

(14). SW1 and D15: Processor Default Setting Switch and 5V Standby LED

SW1 is a processor default setting switch, used to set and test in our factory. Please do not change the small DIP switchs setting on SW1, as wrong settings may prevent your computer from booting.

The default setting of SW1 is: DIP SW 1, 3, 5 and 6 are set to “ON” position.

D15 will light up after the power switch is pressed, this LED will show you the 5V standby power situation.

Figure 2-10. SD7-533 back panel connectors

Figure 2-10 shows the SD7-533 back panel connectors. These connectors are used for connecting outside devices to the motherboard. We will describe which devices will attach to these connectors below.

SD7-533 Motherboard