Updated: Friday, January 3, 1997

Contents

• Motherboard Connectors
• Front Panel Connections
• Back Panel Connections

Motherboard Connectors
There are connectors on-board for Floppy, IDE, SIMMs, battery holder and front panel I/O connectors.

Auxiliary fan connector note: Some boards feature a six-pin connector, as shown, with pins 1, 3, 4 and 6 connected to Ground, and +12V on pins 2 and 5. Later revisions of the board include only a three-pin auxiliary fan connector, with a pinout of (1) Ground (2) +12V (3) Sense Tachometer.

Front Panel Connections (J3A1, J2A1)
The VS440FX 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
• CPU fan
• Infra-Red (IrDA) port
• Sleep/Resume

• Speaker
  The speaker provides error beep code information during the Power-On Self Test, if the system cannot use the video interface. Jumpering pins 26-27 (the last two pins of J10H1) enables the onboard speaker. To disable the onboard speaker, remove the jumper from these pins or disable the on-board speaker via a CMOS setup option.

• Sleep / Resume
  When Advanced Power Management (APM) is activated in the system BIOS and the Operating System’s APM driver is loaded, Sleep mode (Standby) can be entered in one of three ways: an optional front panel "Sleep/Resume" button, a user defined keyboard hot key, or prolonged system inactivity. The Sleep/Resume button is supported by a 2-pin header located on the front panel I/O connector. Closing the "Sleep" switch will generate an SMI (System Management Interrupt) to the processor which immediately goes into System Management Mode (SMM). The front panel "Sleep mode" switch must be a momentary two pin SPST type that is normally open. The function of the Sleep/Resume button can also be achieved via a keyboard hot-key sequence, or by a time-out of the system inactivity timer. Both the keyboard hot-key and the inactivity timer are programmable in the BIOS setup (timer is set to 10 minutes by default). To re-activate the system, or "Resume", the user must simply press the sleep/resume button again, or use the keyboard or PS/2 mouse. Mouse activity will only "wake up" the system if a mouse driver is loaded. While the system is in Standby or "sleep" mode, it is fully capable of responding to and servicing external interrupts (such as in-coming FAX) even though the monitor will only turn on if a user interrupt (keyboard/mouse) occurs as mentioned above.

• 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, PDA’s and printers using application software such as LapLink. The IrDA specification provides for data transfers at 115 Kbps from a distance of 1 meter. Consumer IR is also supported by the same connector.

• 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.

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 motherboard. Optional connectors (when the board includes the feature) include two USB connectors, external audio jacks and a MIDI/game port.

The diagram below shows the general location of the I/O connectors.

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