How To Install Memory; Dimm Installation Guidelines; Installation Guideline Summary - Intel cc820 Product Manual

Intel Desktop Board CC820 Product Guide

How to Install Memory

CAUTION
To be fully compliant with all applicable Intel SDRAM memory specifications, the CC820 desktop
board requires DIMMs that support the Serial Presence Detect (SPD) data structure.
You can access the PC Serial Presence Detect Specification at:
http://www.intel.com/design/chipsets/memory/
The CC820 desktop board has two 168-pin DIMM sockets arranged as banks 0 and 1 as shown in
Figure 7. The memory module requirements are listed in the Main Memory section on Page 11.

DIMM Installation Guidelines

The CC820 board requires supported DIMMs be installed under the guidelines listed below.
Table 6 summarizes the DIMM installation guidelines.
•
If you have one DIMM, install it in Bank 0. If only one DIMM is installed in Bank 1, the
system will still boot, however STR will not work.
•
If you have two identical DIMMs (same size, same number of sides, both single-sided or both
double-sided), install them in either bank 0 or bank 1.
•
If you have two DIMMs of different sizes (e.g., a 64 MB and 128 MB DIMM), install the
larger DIMM in Bank 0, and the smaller DIMM in Bank 1.
•
If you have two DIMMs of the same size and one is single-sided and one is double-sided,
install the single-sided DIMM in Bank 0 and the double-sided DIMM in bank 1.
Table 6.

Installation Guideline Summary

DIMMs Installed in CC820
One DIMM
Two DIMMs - Same size, same number of sides (both
single or both double sided)
Two DIMMs - Different sizes
Two DIMMs - Same sizes, one is single-sided and one is
double-sided.
NOTE
All memory components and DIMMs used with the desktop board CC820 must comply with the PC
SDRAM specifications. These include the PC SDRAM Specification (memory component specific),
the PC100 SDRAM Component Testing Summary, the PC Unbuffered DIMM Specification, and the
PC Registered DIMM Specification. You can access these documents through the Internet at:
http://www.intel.com/design/chipsets/memory/
26
Bank 0 Bank 1
DIMM (Empty)
Either DIMM Either DIMM
Larger DIMM Smaller DIMM
Single-sided DIMM Double-sided DIMM