User manual NEC POWERMATE ES 5200

[. . . ] Proprietary Notice and Liability Disclaimer The information disclosed in this document, including all designs and related materials, is the valuable property of NEC Computer Systems Division, Packard Bell NEC, Inc. (hereinafter "NEC CSD") and/or its licensors. NEC CSD and/or its licensors, as appropriate, reserve all patent, copyright and other proprietary rights to this document, including all design, manufacturing, reproduction, use, and sales rights thereto, except to the extent said rights are expressly granted to others. The NEC CSD product(s) discussed in this document are warranted in accordance with the terms of the Warranty Statement accompanying each product. [. . . ] Your system uses dual inline memory modules (DIMMs). The system board has two module sockets and supports up to 512 MB of non-ECC high-speed memory. The system supports 168-pin SDRAM modules in 32-, 64-, 128-, and 256-MB unbuffered PC100 memory configurations. Use the following guidelines in selecting DIMM types: T memory can be installed in one or two sockets T the size of the DIMMs can vary between sockets T the speed of the DIMMs must match the processor bus speed T single- and double-sided DIMMs are supported. To determine what configuration of DIMMs to use, see the table "Supported DIMMs. " For sample memory configurations, see the table "Sample DIMM Upgrade Paths. " To locate memory module sockets on the system board, see the previous figure "System board sockets. " To determine the memory you need to purchase for a memory upgrade, see "Checking System Memory. " 5-22 Installing Options Supported DIMMs DIMM Size 32 MB 64 MB 128 MB 256 MB Non-ECC Configuration 4 Mbit x 64 8 Mbit x 64 16 Mbit x 64 32 Mbit x 64 ECC Configuration 4 Mbit x 72 8 Mbit x 72 16 Mbit x 72 32 Mbit x 72 Sample DIMM Upgrade Paths* Total Memory 32 MB 64 MB 64 MB 128 MB 128 MB 256 MB 256 MB 512 MB DIMM 1 32 MB 32 MB 64 MB 64 MB 128 MB 128 MB 256 MB 256 MB 256 MB 128 MB 64 MB 32 MB DIMM 2 *The information in this table shows sample DIMM upgrade paths. It does not represent every combination of DIMMs supported in the system. Checking System Memory If you do not know how much memory is installed in your system, check the amount by using the following procedure. On the Windows 95, Windows 98, or Windows NT 4. 0 desktop, point to My Computer, and click the right mouse button. Installing Options 5-23 2. With the left mouse button, click Properties. The General tab shows the random access memory (RAM). This is the amount of system memory in your computer. In Windows 95 or Windows 98, you can also find the amount of memory by pointing to My Computer, clicking the right mouse button, and selecting the Performance tab. Removing a DIMM If your memory configuration requires the removal of a module, use the following steps. !CAUTION Before opening the computer or handling boards or memory modules, reduce static discharge by touching the system's metal chassis. 1. Remove the system board to access DIMM sockets. T In a small desktop system, see "Removing the System Board -- Small Desktop. " T In a desktop system, see "Removing the System Board -- Desktop. " T In a minitower system, see "Removing the System Board -- Minitower. " 2. Locate the system memory upgrade sockets on the system board (see the figure "System board sockets"). Either socket (or both) can contain a memory module. 5-24 Installing Options 3. Press the plastic clips at the outer edges of the socket away from the memory module (see the following figure). This ejects the DIMM from the socket. Removing a DIMM A ­ Plastic Clip 4. If installing a DIMM, see the next section, "Installing a DIMM. " 5. If you are not installing a DIMM, slide the system board into the chassis. T In a small desktop system, see "Replacing the System Board -- Small Desktop. " T In a desktop system, see "Replacing the System Board -- Desktop. " T In a minitower system, see "Replacing the System Board -- Minitower. " 6. Replace the cover(s): T For a small desktop or desktop system, see "Replacing the Small Desktop or Desktop Cover. " T For a minitower system, see "Replacing the Minitower Side Covers. " Installing Options 5-25 Installing a DIMM Install a memory module by performing the following steps. Remove the system board to access DIMM sockets. T In a small desktop system, see "Removing the System Board -- Small Desktop. " T In a desktop system, see "Removing the System Board -- Desktop. " T In a minitower system, see "Removing the System Board -- Minitower. " 2. If you need to remove a currently installed memory module, see "Removing a DIMM. " !CAUTION Before you install a module, reduce static discharge by touching the system's metal chassis. 3. [. . . ] These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures. T T T Reorient or relocate the receiving antenna. [. . . ]