8. Close the expansion-card retainer.
9. Reinstall the expansion-card cage. See "Installing the Expansion-Card Cage."
10. Close the system. See "Closing the System" in "Troubleshooting Your System."
Removing a Hot-Plug Expansion Card
1. Open the system. See "Opening the System" in "Troubleshooting Your System."
2. To power down the expansion slot, press the indicator/switch at the end of the expansion slot. See Figure6-14.
3. Wait until the green and amber indicators for the slot are both off. See Figure6-14 and Table6-1.
4. Disconnect any internal or external cable(s) that are connected to the expansion card.
5. Open the expansion-card retainer adjacent to the PCI slot.
6. Grasp the expansion card and carefully remove it from the riser-card connector.
7. If you are permanently removing the card, replace the metal filler bracket over the empty card-slot opening.
8. Close the expansion-card retainer.
9. Close the system. See "Closing the System" in "Troubleshooting Your System."
System Memory
You can upgrade your system memory to a maximum of 16 GB by installing combinations of 256-MB, 512-MB, 1-GB, 2-GB, or 4-GB (when available) 2-way
registered ECC PC2-3200(DDRII400)memory.Thememorysocketsarelocatedonthesystemboardadjacenttothepowersupplybays.SeeFigure6-1.
The system memory is located on the system board adjacent to the power supply bays. See Figure6-1. The memory module sockets are arranged in three
banks on two channels (A and B). The memory module banks are identified as follows:
l Bank 1: DIMM1_A and DIMM1_B
l Bank 2: DIMM2_A and DIMM2_B
l Bank 3: DIMM3_A and DIMM3_B
General Memory Module Installation Guidelines
l If only one memory module is installed, it must be installed in socket DIMM1_A or DIMM1_B.
l If two or more memory modules are installed, they must be installed in pairs of matched memory size, speed, and technology.
l The system supports both single-ranked and dual-ranked memory modules.
l If you install both single-ranked and dual-ranked memory modules, the dual-ranked memory modules must be installed in bank 1.
l Dual-ranked memory modules are not supported in bank 3.
l If dual-ranked memory modules are installed in bank 2, you cannot install any memory modules in bank 3.
Memory modules marked with a 1R are single ranked and modules marked with a 2R are dual ranked. See Figure6-15.
Figure 6-15. Determining a Memory Module's Capacity and Rank
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