Dell PowerEdge 6850 System Installation Manual page 67

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Removing and Installing a Hot-Pluggable Memory Riser Card
The following procedure explains how to safely remove and install a hot-pluggable memory riser card.
NOTE: The system supports both hot-add and hot-replace memory upgrades.
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
2. Verify that the memory riser card is operating in a hot-pluggable mode by ensuring that either the green "MIRROR" or the "RAID" mode indicator is lit.
See Figure 6-12 for the locations of the indicators on the memory riser card and see
3. If you replacing a faulty memory module, identify the memory riser card that contains the faulty memory module.
If the amber attention indicator is on and the green power indicator is off, the memory riser card contains a faulty memory module. The location of the
faulty module within the riser card is identified by the faulty module indicators labeled "1B," "1A," "2B," and "2A" on the memory riser card. See
12.
NOTICE: Verify that the memory riser card is operating in a hot-pluggable mode by ensuring that either the green "MIRROR" or the "RAID" mode
indicator is lit. See Figure 6-12.
NOTICE: Power off a memory riser card before removing it.
4. Press the power button on the memory riser card. See Figure 6-12.
The amber attention indicator turns off and the green power indicator blinks while the riser card prepares for removal. See Figure 6-12.
5. After the green power indicator stops blinking and turns off, remove the memory riser card:
a. Press in the release tab on the riser card handle. See Figure 6-13.
b. Lift up the riser card handle and pull the riser card straight up.
c. Remove the plastic riser-card insulator. See
6. Add, remove, or replace a memory module, and then replace the insulator. See
7. Install the memory riser card:
a. Ensure that the riser-card handle is fully extended, and then align both edges of the riser card with the front and rear riser-card guides. See
Figure 6-13.
b. Lower the riser card until the riser-card connector is near the riser-card connector on the system board.
c. Ensure that both connectors are properly aligned, and then gently press the riser card until it is fully seated.
d. Press down the riser-card handle until its release tab locks into place.
8. Press the power button on the memory riser card. See Figure 6-12.
The green power indicator blinks while the system resynchronizes the riser card memory. See Figure 6-12. After the green power indicator stops blinking
and remains on, the memory is resynchronized.
NOTE: It may takes several minutes for the power indicator to stop blinking.
Figure 6-12. Memory Riser Card Indicators and Features
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System" in "Troubleshooting Your System."
"Removing a Memory Riser Card
Table 6-4 for a description of the indicators.
Insulator."
"Installing Memory Modules" or "Removing Memory
Figure 6-
Modules."