Intel IB865, 865G user manual JP1 Clear Cmos Contents, JP5/6/7/8/9/10/11 CRT VGA Signal Select

INSTALLATIONS

JP1: Clear CMOS Contents

Use JP1, a 3-pin header, to clear the CMOS contents. Note that the ATX-power connector should be disconnected from the CPU card before clearing CMOS.

JP1	Setting	Function
	Pin 1-2	Normal
	Short/Closed
	Pin 2-3	Clear CMOS
	Short/Closed

JP2, JP3, JP4: RS232/422/485 (COM2) Selection J4, COM1 is fixed for RS-232 use only.

J5, COM2 is selectable for RS232, RS-422 and RS-485.

The following table describes the jumper settings for COM2 selection.

COM2		RS-232		RS-422		RS-485
Function
		JP2:		JP2:		JP2:
Jumper	1-2		3-4		5-6
Setting		JP3:		JP3:		JP3:
(pin closed)	3-5 & 4-6		1-3 & 2-4		1-3 & 2-4
		JP4:		JP4:		JP4:
	3-5 & 4-6		1-3 & 2-4		1-3 & 2-4

JP5/6/7/8/9/10/11: CRT VGA Signal Select

Use these seven 3-pin headers to select the VGA signal either from the on board VGA or from the MicroAGP VGA.

JP5/6/7/8/9/10/11	Setting	Function
	Pin 1-2	On board VGA
	Short/Closed
	Pin 2-3	MicroAGP VGA
	Short/Closed

10 IB865 User’s Manual