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Anleitung Zusammenfassung
USB bus activity wakes the computer from an ACPI S3 state. PCI Express WAKE# Signal Wake-up Support When the WAKE# signal on a PCI Express bus add-in card is asserted, the computer wakes from an ACPI S3, S4, or S5 state. Wake from CIR Consumer IR device activity wakes the computer from an ACPI S3 state. Intel Desktop Board DH67GD Product Guide Speaker A speaker is mounted on the Desktop Board. The speaker provides audible error code (beep code) information during the Power-On Self-Test (POST). Refer to Appendix A for a description of the board’s beep codes. Real-Time Clock Subsystem A coin-cell battery (CR2032) powers the real-time clock and CMOS memory. When the computer is not plugged into a wall socket, the battery has an estimated life of three years. When the computer is plugged in, the standby current from the power supply extends the life of the battery. The clock is accurate to ± 13 minutes/year at 25 .C with standby power applied by the power supply. NOTE If the battery and AC power fail, date and time values will be reset and the user will be notified during the POST. When the battery voltage drops below a certain level, the BIOS Setup program settings stored in CMOS RAM (for example, the date and time) might not be accurate. Replace the battery with an equivalent one. Go to page 54 for instructions on how to replace the battery. 2 Installing and Replacing Desktop Board Components This chapter tells you how to: • Install the I/O shield • Install and remove the Desktop Board • Install and remove a processor • Install and remove memory • Install and remove a PCI Express x16 card • Connect SATA drives • Connect to the internal headers • Connect to the audio system • Connect chassis fan and power supply cables • Set the BIOS configuration jumper • Clear passwords • Replace the battery Before You Begin CAUTION The procedures in this chapter assume familiarity with the general terminology associated with personal computers and with the safety practices and regulatory compliance required for using and modifying electronic equipment. Disconnect the computer from its power source and from any telecommunications links, networks, or modems before performing any of the procedures described in this chapter. Failure to disconnect power, telecommunications links, networks, or modems before you open the computer or perform any procedures can result in personal injury or equipment damage. Some circuitry on the board can continue to operate even though the front panel power button is off. Follow these guidelines before you begin: • Always follow the steps in each procedure in the correct order. • Set up a log to record information about your computer, such as model, serial numbers, installed options, and configuration information. • Electrostatic discharge (ESD) can damage components. Perform the procedures described in this chapter only at an ESD workstation using an antistatic wrist strap and a conductive foam pad. If such a station is not available, you can provide some ESD protection by wearing an antistatic wrist strap and attaching it to a metal part of the computer chassis. Intel Desktop Board DH67GD Product Guide Installation Precautions When you install and test the Intel Desktop Board, observe all warnings and cautions in the installation instructions. To avoid injury, be careful of: • Sharp pins on connectors • Sharp pins on printed circuit assemblies • Rough edges and sharp corners on the chassis • Hot components (such as processors, voltage regulators, and heat sinks) • Damage to wires that could cause a short circuit Observe all warnings and cautions that instruct you to refer computer servicing to qualified technical personnel. Prevent Power Supply Overload Do not overload the power supply output. To avoid overloading the power supply, make sure that the calculated total current loads of all the modules within the computer is less than the output current rating of each of the power supplies output circuits plus enough headroom for desktop board power consumption. Observe Safety and Regulatory Requirements Read and follow the instructions in this section and the instructions supplied with the chassis and associated modules. If you do not follow these instructions and the instructions provided by the chassis and module suppliers, you increase your safety risk and the possibility of noncompliance with regional laws and regulations. If the instructions for the chassis are inconsistent with these instructions or the instructions for associated modules, contact the supplier to find out how you can ensure that your computer meets safety and regulatory requirements. For information about the Desktop Board’s regulatory compliance, refer to Appendix B. Installing and Replacing Desktop Board Components Installing the I/O Shield The Desktop Board comes with an I/O shield. When installed in the chassis, the shield blocks radio frequency transmissions, protects internal components from dust and foreign objects, an...