SUPER MICRO Computer X8STI-F, X8STI-LN4, X8STI-3F Power Supply Failure, Unit Identifier Switches

X8STi/X8STi-F/X8STi-3F/X8STi-LN4 User's Manual

Power Supply Failure

Connect a cable from your power supply to the Power Supply Failure header at JPWF to provide a warning of power supply failure. This warning signal is passed through the PWR_LED pin to indicate of a power failure on the chassis. See the table on the right for pin definitions.

PWR Supply Fail LED

Pin Definitions

Pin# Definition

1PWR 1: Fail

2PWR 2: Fail

3PWR 3: Fail

4Signal: Alarm Reset

Note: This feature is only available when using

Supermicro redundant power supplies.

Unit Identifier Switches

There are two Unit Identifier (UID) Switches on the motherboard. The Front Panel UID Switch is connected to a pin in the Front Control Panel (JF1). The Rear UID Switch (SW1) is located next to Fan6. When you push the UID Switch on the Front Control Panel, both Rear UID and Front Panel UID Indicators will be turned on. Push the FP UID Switch or the Rear UID Switch-SW1 again to turn off both Indicators. These UID Indicators provide easy identification of a system unit that may be in need of service.

UID Switch

Pin# Definition

1Ground

2Ground

3Button In

4Ground

A. PWR Supply Failure

B. UID

NIC4 LED

B

JBMC1

A

LSI 1068E

2-28