User manual NEC DIRECTION SP B

[. . . ] 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. 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. However, actual performance of each such product is dependent upon factors such as system configuration, customer data, and operator control. [. . . ] Insert the screw removed in step 3 to secure the expansion board to the support bracket. Replace the access cover (see "Replacing the Access Cover"). Installing Options 5-11 Removing an Expansion Board Follow these steps to remove a board. Gently rock the board from side-to-side to release it from its connector. Removing the board 5. Replace the access cover (see "Replacing the Access Cover). 5-12 Installing Options Memory Upgrade Your system comes with 32 MB to 384 MB of main system memory factory-installed in up to three 168-pin sockets on the system board. Before installing memory, read the detailed explanation of memory types and configuration options in Appendix B. Depending on product upgrade availability, your system memory can be upgraded to a total of 384 MB. When upgrading your system memory, note the following conditions: T Be sure to use 168-pin 3. 3V DIMMs with gold-plated contacts. T Bus speed of 100 MHz only is supported. T Non-Error Correcting and Checking (64-bit) DIMMs are supported. Note: Although memory size and type may vary, the SDRAM DIMMs must meet the Intel 4-clock, 100-MHz, unbuffered SDRAM DIMM specification for 64-bit SDRAM. Use the following procedure to: T Check the memory installed in the system T Determine the DIMM configuration needed to increase memory Installing Options 5-13 T Identify DIMM sockets. Note: If any cables block access to the DIMM sockets, label and disconnect them. Locate the three DIMM sockets: J7J1­Bank 0, J6J2 ­ Bank 1, and J6J1­Bank 2. The following table provides sample memory configurations; it is not a complete list of all memory configurations. Sample Memory Configurations Bank 0 32 MB 32 MB 64 MB 32 MB 64 MB 128 MB 64 MB 64 MB 128 MB 64 MB 64 MB Bank 1 Empty 32 MB Empty 32 MB 32 MB Empty 32 MB 64 MB 32 MB 64 MB 64 MB Bank2 Empty Empty Empty 32 MB Empty Empty 32 MB Empty Empty 32 MB 64 MB Total RAM 32 MB 64 MB 64 MB 96 MB 96 MB 128 MB 128 MB 128 MB 160 MB 160 MB 192 MB 5-14 Installing Options Sample Memory Configurations Bank 0 128 MB 128 MB 128 MB 128 MB 128 MB 128 MB 128 MB 128 MB Bank 1 32 MB 64 MB 64 MB 64 MB 128 MB 128 MB 128 MB 128 MB Bank2 32 MB Empty 32 MB 64 MB Empty 32 MB 64 MB 128 MB Total RAM 192 MB 192 MB 224 MB 256 MB 256 MB 288 MB 320 MB 384 MB Removing a DIMM Use the following procedure to remove a DIMM. !CAUTION Reduce static discharge by touching the system's metal chassis. 1. To remove a DIMM from its socket, press the plastic clips at the outer edges of the socket away from the DIMM. Installing Options 5-15 4. Carefully rock the DIMM to pull it from the socket. Removing a DIMM A ­ Plastic Clip 5. Store the module in an antistatic bag (available at electronic supply stores) or a cardboard box. Installing a DIMM Use the following procedure to install a DIMM. CAUTION Before installing a DIMM, reduce static discharge by touching the system's metal chassis. 5-16 Installing Options 4. Make sure that the notches on the DIMM line up with the keys in the sockets. Close the plastic clips at both ends of the socket. Installing a DIMM A ­ Plastic Clip 6. Replace the access cover (see "Replacing the Access Cover"). Your system automatically detects the memory at bootup. Installing Options 5-17 Data Storage Devices The system board in your computer supports the following storage devices: T two devices on the diskette drive connector, including the standard 1. 44-MB diskette drive and a tape backup unit T up to four IDE drives. !CAUTION Reduce static discharge by touching the system's metal chassis. Locating Device Slots Your computer has seven storage device slots: T a 3 1/2-inch accessible device slot contains the standard 1. 44-MB diskette drive T one internal 3 1/2-inch hard drive slot for the standard hard drive; a second 3 1/2-inch internal hard drive slot is available T four accessible device slots one accessible 5 1/4-inch device slot containing the standard CD-ROM/DVD drive one accessible 5 1/4-inch device slot two accessible 3 1/2-inch device slots. (The lower 3 1/2-inch slot is not accessible in the desktop model. ) 5-18 Installing Options Locating device slots A ­ 3 1/2" Internal Device Slot C ­ 3 1/2" Diskette Drive E ­ 5 1/4" Accessible Device Slots B ­ Second 3 1/2" Internal Device Slot D ­ 3 1/2" Device Slots Preparing the Device Before installing a storage device in the system, follow any preinstallation instructions that come with the device. For example, check the following: T Accessible device remove any termination jumpers on the optional device. [. . . ] See cache and write back. 26 Glossary X X2 technology A technology developed by U. S. Robotics (now 3Com) for delivering data rates up to 56 Kbps over plain old telephone service (POTS). It was long believed that the maximum data transmission rate over copper telephone wires was 33. 6 Kbps, but X2 achieves higher rates by taking advantage of the fact that most phone switching stations are connected by highspeed digital lines. X2 bypasses the normal digital-to-analog conversion and sends the digital data over the telephone wires directly to your modem where it is decoded. Glossary 27 Index 2 24-hour information services, 7-2 CD-ROM/DVD drive features, 1-6, 1-7 CDs, 2-6 cleaning, 2-7 handling, 2-6 loading, 2-8 removing, 2-8 using, 2-6 Chassis, 3-3 Checking hard drive parameters, 4-11 Cleaning your system, 2-16 CMOS battery replacement, 6-11 Compact discs. [. . . ]