NEC DIRECTION L Service Manual page 48

Desktop and minitower pentium ii systems
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3-8
Option Installation
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Non-Error Correcting and Checking (64-bit) and ECC (72-bit) DIMMs are both
supported. When ECC memory is installed, the BIOS automatically detects its
presence and offers the Setup option to enable ECC mode.
Use the following procedure to:
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Check the memory installed in the system
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Determine the DIMM configuration needed to increase memory
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Identify DIMM sockets.
Locate the three DIMM sockets, J7J1 – Bank 0, J6J2 – Bank1, and
1.
J6J1 – Bank 2. See Appendix B to identify the sockets.
2.
Use the following table to determine the DIMM configuration needed to upgrade
memory.
NOTE: Although memory size and type may
vary, the SDRAM DIMMs must meet the Intel
4-clock, 66-MHz, unbuffered SDRAM DIMM
specification for either 64-bit or 72-bit SDRAM.
NOTE: If any cables block access to the DIMM
sockets, label and disconnect them. If any boards
block access to the sockets, remove them.

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