When upgrading your system memory, note the following conditions: Be sure to use 168-pin 3.3V DIMMs with gold-plated contacts.

TBus speed of 100 MHz is supported.

Non-Error Correcting and Checking (64-bit) DIMMs are supported.

Note: Although memory size 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:

Check the memory installed in the system

Determine the DIMM configuration needed to increase memory Identify DIMM sockets.

Note: If any cables block access to the DIMM sockets, label and disconnect them. If any boards block access to the sockets, remove them.

1.Locate the three DIMM sockets: J7J1–Bank 0, J6J2–Bank1, and J6J1–Bank 2. See Appendix B to identify the sockets.

2.Use the following table to determine the DIMM configuration needed to upgrade memory. The table provides sample memory configurations; it is not a complete list of all memory configurations.

Sample Memory Configurations

Bank 0

Bank 1

Bank 2

Total RAM

32 MB

Empty

Empty

32 MB

32 MB

32 MB

Empty

64 MB

64 MB

Empty

Empty

64 MB

32 MB

32 MB

32 MB

96 MB

64 MB

32 MB

Empty

96 MB

128 MB

Empty

Empty

128 MB

64 MB

32 MB

32 MB

128 MB

64 MB

64 MB

Empty

128 MB

128 MB

32 MB

Empty

160 MB

64 MB

64 MB

32 MB

160 MB

64 MB

64 MB

64 MB

192 MB

 

 

 

 

Option Installation 3-9

Page 49
Image 49
NEC SP B-Series manual Sample Memory Configurations, Bank Total RAM