Dell PowerEdge 4600 Information Update — 1-GB 512-Mb Memory M

Dell PowerEdge 4600 Manual

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About Cautions
CAUTION:
A CAUTION indicates a potential for property damage, personal injury, or death.
Information Update — 1-GB 512-Mb Memory Modules
CAUTION:
See your
Product Information Guide
or
System Information Guide
for complete information
about safety precautions, working inside the computer, and protecting against electrostatic discharge.
The industry is moving from 256-Mb to 512-Mb technology for 1-GB memory modules. These
two technologies are not interchangeable within memory module banks in systems with interleaved
memory. If these technologies are mixed within a memory module bank, your system will have a
no POST/no video error condition. To correct this error, ensure that each bank is populated with
identical memory modules (1 GB 256 Mb or 1 GB 512 Mb). See your
Installation and
Troubleshooting Guide
for memory module installation guidelines.
The two technologies can be mixed within a system as long as each memory module bank is
completely populated with either technology. However, the mixing of 256 Mb and 512 Mb
technologies will cause systems that have redundant memory features (spare bank, memory
mirroring, and enhanced memory mapping) to disable these features.
See Figure 1 to ensure that each memory module bank is completely populated with the same
memory module technology. The 1-GB 256-Mb memory module components are stacked and
the 1-GB 512-Mb memory module components are not.
July 2004