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Save & Exit Setup This function automatically saves all CMOS values before leaving Setup. 70 Chapter 3 Award BIOS Exit without Saving Use this function to exit Setup without saving the CMOS value changes. Do not use this option if you want to save the new configuration. Upgrading the System Chapter 4 This chapter tells you how to remove and replace the system housing, and to install optional components to upgrade the system. It gives brief and clear instructions accompanied by mechanical illustrations showing how to perform each described procedure. Installation Precautions Before you install any system component, we recommend that you read the following sections. These sections contain important ESD precautions along with preinstallation and postinstallation instructions. ESD Precautions Electrostatic discharge (ESD) can damage your processor, disk drives, expansion boards, and other components. Always observe the following precautions before you install a system component: 1. Do not remove a component from its protective packaging until you are ready to install it. 2. Wear a wrist grounding strap and attach it to a metal part of the system unit before handling components. If a wrist strap is not available, maintain contact with the system unit throughout any procedure requiring ESD protection. Preinstallation Instructions Always observe the following before you install a system component: 1. Turn off the system power and all the peripherals connected to the unit before opening it. 2. Open the system according to the instructions on page 75. 3. Follow the ESD precautions described above before handling a system component. 4. Remove any expansion boards or peripherals that block access to the DIMM sockets or CPU connector. 5. See the following sections for specific instructions on the component you wish to install. 74 Chapter 4 Upgrading the System Warning! Not turning off the system properly before you start installing the components may damage your system. Do not attempt the procedures described in the following sections unless you are a qualified service technician. Postinstallation Instructions Observe the following after installing a system component: 1. See to it that the components are installed according to the step-by-step instructions in their respective sections. 2. Make sure you have set all the required jumpers. See “Jumpers and Connectors” on page 27 for the correct jumper settings. 3. Replace any expansion boards or peripherals that you removed earlier. 4. Replace the system cover. 5. Connect the necessary cables and turn on the system. Opening the System Caution: Before you proceed, make sure that you have turned off the system and all peripherals connected to it. Read the “Preinstallation Instructions” on page 73. This section tells you how to open the housing cover when you need to install additional components inside the system unit. Removing the Housing Cover 1. Turn off the system power and unplug all cables. 2. Place the system unit on a flat, steady surface. 3. Remove the screws (two) on one side of the cover using a screwdriver. Set the screws aside. 4. Hold the side of the cover with both hands. Slide it back about an inch and then gently pull it outward to detach it. 5. Follow steps 3 and 4 to remove the other side. 76 Chapter 4 Upgrading the System Replacing the Housing Cover 1. Align the cover’s hinges to the housing frame and then gently push it in. Slide it back into place. 2. Secure the cover with two screws. 3. Follow steps 1 and 2 to replace the other side. Installing Additional Memory The three 168-pin sockets onboard support SDRAM-type DIMMs. You may install 32-MB, 64-MB, or 128-MB (single and double density) DIMMs for a maximum of 384-MB system memory. The SDRAM DIMMs should work under 3.3 volts only; 5-volt memory devices are not supported. This system board supports both PC-100 (100MHz) and PC-133 (133 MHz) SDRAM. However, they cannot be used at the same time in a system. Please contact your dealer for qualified DIMM vendors. Do not use both PC-100 (100 MHz) and PC-133 (133 MHz) SDRAM together. Such a combination might cause your system to malfunction. Each of the DIMM sockets is independent from the others. This independence allows you to install DIMMs with different capacities to form different configurations. 78 Chapter 4 Upgrading the System Installing a DIMM 1. Open the clips on the socket. 2. Align the DIMM with the socket. 3. Press the DIMM into the socket until the clips lock onto the DIMM. Note: The DIMM socket is slotted to ensure proper installation. If you insert a DIMM but it does not fit easily into the socket, you may have inserted it incorrectly. Turn the DIMM around and try to insert it again. Removing a DIMM 1. Press the holding clips on both sides of the socket outward to release the DIMM. 2. Gently pull the DIMM out of the socket. Reconfiguring the System The system automatically detects the amount of memory installed. Run Setup to view the new value...

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