Datasheet

Intel

815E Scalable Performance Board Development Kit Manual 47

Hardware Reference

4.4.5 AGP USB Settings (JP5 and USB2)

When using AGP’s USB, these are the settings for JP5 and USB2.

• Place the jumpers across JP5 pin 3 with USB2 pin 6

• Place the jumpers across JP5 pin 4 with USB2 pin 8

4.5 Processor DIP Switch Settings (SW1)

Processor settings, including PSB frequency selection, are implemented on the board by a DIP

Switch (SW1).

JP5 12345

USB2

246810

13579

JP4 12345

JP5 12345

USB2

246810

13579

JP4 12345

Table 20. Processor DIP Switch Settings (Sheet 1 of 2)

Switch On/Off Description Default

1-2

1:ON 2:ON Use CPU Default Frequency Setting Default

1:OFF 2:ON Reserved

1:OFF 2:OFF Use SW1: 3-4 Frequency Setting

1:ON 2:OFF Reserved

3-4

3:ON 4:ON 66 MHz

3:OFF 4:ON 100MHz

3:OFF 4:OFF 133 MHz Default

3:ON 4:OFF No Define

ON Use CPU Frequency Strap in ICH2 Register

OFF Force CPU Frequency Strap to Safe Mod (1111) Default

ON No Reboot on 2nd Watchdog Timeout

OFF Reboot on 2nd Watchdog Timeout Default

NOTE: If you want to use SW1: 3-4 to set CPU frequency, SW1: 1-2 must be set at off.