SUPER MICRO Computer AS1021M-82 Jumper Settings, Power Fail Header, Explanation Jumpers

AS1021M-T2/1021M-82 User's Manual

Power Fail Header

Connect a cable from your power sup- ply to the Power Fail header to provide you with warning of a power supply failure. The warning signal is passed through the PWR_LED pin to indicate a power failure. See the table on the right for pin defi nitions.

Power Fail Header

Pin Definitions (JPWF)

Pin# Defi nition

1P/S 1 Fail Signal

2 P/S 2 Fail Signal

3 P/S 3 Fail Signal

4Alarm Reset

Note: This feature is only available when using redundant Supermicro power supplies.

5-9 Jumper Settings

Explanation of

Jumpers

To modify the operation of the serverboard,jumperscanbeusedto choose between optional settings. Jumpers create shorts between two pins to change the function of the connector. Pin 1 is identifi ed with a square solder pad on the printed circuit board. See the diagram at right for an example of jumping pins 1 and 2. Refer to the serverboard layout page for jumper locations.

Note 1: On two-pin jumpers, "Closed" means the jumper is on and "Open" means the jumper is off the pins.

3 2 1

Connector

Pins

Jumper

3 2 1

Setting

5-20