American Megatrends MAN-772 manual Set Jumpers, PWR1 Setting Description

Step 2 Set Jumpers

Set all jumpers and install the CPU before placing the motherboard in the chassis. Set jumpers by placing a shunt (shorting bridge) on the designated pins of the jumper. A shunt and jumpers are shown below:

3-dimensional view of motherboard jumpers and a shunt.

Shunt 3-pin Berg 2-pin Berg

In this manual, jumpers are shown in two -dimensions, as if viewed from directly above, as shown below:

		The placement of shunts is
1	2	indicated by a solid line	1
		between pins, as shown
3	4	between Pins 1-2	3
		to the right:
5	6		5

2

4

6

PWR1 Power Supply Type PWR1 is a 3-pin berg that sets the power supply type:

PWR1 Setting	Description
Short Pins 1-2	AT-type power supply is installed (factory setting).
Short Pins 2-3	Remote power supply is used.

CPW Clear Password CPW is a 2-pin berg that allows you to delete the system BIOS password should you forget the password. CPW should be OPEN at all times during normal operation. Should you forget the password: turn power off, remove the computer cover, turn power on, place a shorting bridge (shunt) on CPW for a few seconds, then turn power off again. Reboot the computer and re-enter all system configuration information, because you have just erased all of it.

Cont’d

12Apollo IV PCI Pentium ISA Motherboard User’s Guide