Updated: Tuesday, February 18, 1997

Contents
For technical support, contact your place of purchase -- which will have the most current information about your specific product or configuration. You also can check the Intel FAQ for that product.

• What Pentium(r) Pro processors are supported on the AP440FX?
• What upgrade components can be installed on the AP440FX?
• How should the switches and jumpers be set on my motherboard?
• Why does my AP440FX not power-up?
• Is it possible to have a second serial port on the AP440FX?
• Why doesn't my CD-ROM or second IDE hard drive work with Windows* 95?
• Where can I get the Motherboard Specification Update?
• How do I disable the onboard audio, USB or Hardware monitor?
• What is the difference between ECC and parity memory on the AP440FX?

Frequently Asked Questions: AP440FX

• What Pentium(r) Pro processors are supported on the AP440FX?
  The AP440FX motherboard supports PentiumŪ Pro processors with VID at 150, 166, 180 and 200 MHz. Changing the processor requires changes in several jumper settings.
  

• What upgrade components can be installed on the AP440FX?
  The AP440FX will accept processor upgrades, various combinations of system memory and the battery/real time clock can be replaced.
  

• How should the switches and jumpers be set on my motherboard?
  On-board switches and jumpers control the configuration options and other features of the motherboard. Check the jumpers document for the AP440FX motherboard.
  

• Why does my AP440FX not power-up?
  The AP440FX requires 3.3 volts from the power supply. Additionally, there are some specific requirements for the power sequencing and limits. A monetary switch should be used for the for the power on/off switch and the sleep/resume switch. Please refer to the AP440FX Motherboard Technical Product Specification and order the AP440FX Motherboard Specification Update from the Intel Literature department for more details.
  

• Is it possible to have a second serial port on the AP440FX?
  The AP440FX has one serial port connector located on the back edge of the LPX board. Just behind this connector is a 10-pin header for a second serial port. This header allows a suitable cable and connector to provide a second serial port. The BIOS also should be set to enable the second serial port. See the Technical Product Specification for details.
  

• Why doesn't my CD-ROM or second IDE hard drive work with Windows* 95?
  There are two known issues involving CD-ROM or secondary hard drives:
  • The retail version of Microsoft Windows 95 may not recognize the Intel 82371SB PIIX3 IDE controller used on Intel motherboards, causing the BIOS to disable the secondary IDE channel. This can result in IDE devices (such as CD-ROM drives) not being detected or disappearing after the system is rebooted. A utility is available to update the MSHDC.INF file and resolve the issue.
  • Windows 95 also may fail to recognize a CD-ROM drive that does not comply with the ATAPI specification. A technical advisory covers this issue for Intel motherboards using the 82371SB PIIX3 IDE controller.
    

• How can the onboard audio, USB or hardware monitor be disabled?
  The onboard audio, USB or hardware monitor can be disabled using the BIOS Setup Utility. Select the Advanced menu, then the Peripherial Configuration screen. The menu will offer options to enable or disable the audio, USB or hardware monitor features, if they are present on the motherboard. Other Setup options may be found in the AP440FX Technical Product Specification.
  

• What is the difference between ECC and parity memory on the AP440FX?
  The AP440FX can use either 36-bit ECC or parity SIMMs. Older 40-bit ECC memory cannot be used due to different pin connections. Since the memory is organized in 64-bit wide path, the eight bits normally used for parity lines can be used for single bit correction, double bit detection ECC or parity error detection. When using parity or ECC SIMMs, the BIOS setup utility offers the error detection options of Disabled (no error detection), parity or ECC.
  The AP440FX user installable upgrades document lists 36-bit EDO ECC and parity FPM SIMMs that have been tested.