Dell PowerEdge 6850 Information Update page 15

Environmental Data Sheets
For additional information about environmental measurements for specific system configurations,
see www.dell.com/environment_datasheets.
Removing and Installing a Hot-Pluggable Memory Riser Card
As explained in "Removing and Installing a Hot-Pluggable Memory Riser Card" in your Installation and
Troubleshooting Guide, the green power indicator on the memory riser card blinks while the riser card
prepares for removal. Depending on your system's configuration, the riser card may power down so
quickly that the indicator may not have time to blink before it turns off.
Hot-Adding a Memory Riser Card
Presently, only the Microsoft Windows Server 2003 Enterprise and Data Center Edition operating
systems support the hot-add memory feature. Future releases of other operating systems may also
support the feature. See your operating system's documentation to verify if hot-add memory is
supported. If memory is hot-added to a system that is running an operating system that does not support
the feature, the operating system will not recognize the new memory. The following procedure explains
how to safely hot-add a memory riser card.
NOTE:
The system supports hot-add memory only when the memory is not operating in RAID, mirror, or spare-bank
mode. See "System Memory" in your Installation and Troubleshooting Guide for more information.
CAUTION:
Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your
warranty. Read and follow the safety instructions that came with the product.
1 Open the system. See "Opening the System" in your Installation and Troubleshooting Guide.
2 Install the memory modules in the memory riser card. See "Installing Memory Modules" in your
Installation and Troubleshooting Guide.
NOTE:
Do not install an empty memory riser card.
3 Remove the proper filler bank. See "Removing a Memory Riser Card Filler Blank" in your Installation
and Troubleshooting Guide.
NOTE:
A memory riser card must be hot-added into memory slots A, B, C, and D in sequential order only.
For example, do not hot-add a memory riser card into memory slot D if slots A, B, and C are empty.
4 Install and power-up the memory riser card. See step 7 and step 8 in "Removing and Installing
a Hot-Pluggable Memory Riser Card" in your Installation and Troubleshooting Guide.
5 Close the system. See "Closing the System" in your Installation and Troubleshooting Guide.
Information Update
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