Updated: Wednesday, May 1, 1996

Contents

• Motherboard Connectors
• Front Panel Connections
• Back Panel Connections

Motherboard Connectors
There are connectors on-board for Floppy, IDE, and an auxiliary system fan. There are also sockets for SIMMs and a battery holder.

Front Panel Connections (J3A1, J2A1)
The Performance/AU motherboard provides header connectors to support functions typically located on the chassis bezel.

Front panel features supported include:

• System Speaker
• System Reset
• Power LED
• Hard Drive activity LED
• Infra-Red (IrDA) port
• Sleep/Resume
• Power Supply Control

• Speaker
  An on-board Piezo speaker is supported. It may be disabled by removing a jumper from the front panel header and an off-board speaker may be connected to the header instead. The external speaker provides error beep code information during the Power-On Self Test if the system cannot use the video interface.

• Reset
  This 2-pin header can be connected to a momentary SPST type switch that is normally open. When the switch is closed, the system will hard reset and run POST.

• Infra-Red (IRDa) Connector
  Serial port 2 can be configured to support an IrDA module via a 5 pin header connector. Once configured for IrDA, the user can transfer files to or from portable devices such as laptops, PDAs, and printers using application software such as LapLink. The IrDA specification provides for data transfers at 115kbps from a distance of 1 meter.

• Sleep / Resume
  This function is not supported.

• Remote On/Off and Soft Power Support
  For power supplies that support the Remote ON/OFF feature, this two-pin header should be connected to the system power ON/OFF switch. The power ON/OFF button should be a momentary SPST switch that is normally open. The power supply control signal (PS_ON) is supported via the primary power connector. Traditional power supplies with mechanical ON/OFF switches that do not support remote ON/OFF or "soft-off" will bypass this circuit.

  After turning the system ON by pushing the power ON/OFF button, the Performance/AU baseboard (with a power supply that supports remote power on/off) can be turned OFF from one of two sources: the front panel power ON/OFF switch or a thermal trip signal from the Pentium Pro processor. Power can be restored by pressing the power ON/OFF switch which will cycle the power back on and run POST. Shutdown of the power supply by operating systems such as Windows 95 is not supported.

Back Panel Connections
The back panel provides external access to PS/2-style keyboard and mouse connectors as well as two serial ports and one parallel port, which are integrated on the Performance/AU baseboard. The diagram below shows the general locations.

Legal Stuff © 1997 Intel Corporation