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Allow the memory module(s) to cool before touching them. NOTE: For better access to the memory module(s), remove the graphics card if the card is full length. To remove the graphics card, see “Removing the PCI-Express Card(s)” on 4. page 32. Spread apart the securing clips at both ends of the memory-module 5. connector. Lift the memory module off the memory-module connector. If the memory 6. module is difficult to remove, gently ease the memory module back and forth to remove it from the memory-module connector. 12 1 memory-module connector 2 securing clips (2) Replacing the Memory Module(s) Follow the instructions in “Before You Begin” on page 1. 6. Recommended memory configuration: Aurora/Aurora ALX Type Slots 1066 MHz and I333 MHz DDR3 Slots 1, 3, and 5 or slots 1 — 6 1600 MHz XMP Slots 1, 3, and 5 Aurora-R2 Type Slots 1066 MHz and I333 MHz DDR3 Slots 1 and 2 or slots 1 — 4 Align the notch on the bottom of the memory module with the tab on the 2. memory-module connector. 234651 1 cutouts 2 memory-module connector 3 tab 4 notch 5 securing clips (2) 6 memory module CAUTION: To avoid damage to the memory module, press the memory module straight down into the memory-module connector while you apply equal force to each end of the memory module. Insert the memory module into the memory-module connector until the 3. memory module snaps into position. If you insert the memory module correctly, the securing clips snap into the cutouts at each end of the memory module. NOTE If the memory module is not installed properly, the computer may not boot. To replace the graphics card, see “Replacing the PCI-Express Card(s)” on 4. page 33. Replace the left side-panel (see “Replacing the Left Side-Panel“ on page 5. 11). Connect your computer and devices to electrical outlets and then turn 6. them on. As the computer boots, it detects the additional memory and automatically updates the system configuration information. To confirm the amount of memory installed in the computer: Click Start > Control Panel> System and Security> System. CHAPTER 7: MEMORY MODULE(S) 039 / 039 CHAPTER 8: FANS CHAPTER 8: FANS Fans WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at WARNING: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the side panel(s). WARNING: Do not operate your computer with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed. CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell™ is not covered by your warranty. Removing the Hard-Drive Fan Assembly Follow the instructions in “Before You Begin” on page 1. 6. Remove the left side-panel (see “Removing the Left Side-Panel“ on page 2. 11). Open the PCI shroud (see “Opening the PCI Shroud” on page 3. 18). Remove the drive-bay shroud (see “Removing the Drive-Bay Shroud” on 4. page 19). Disconnect the hard-drive fan assembly cable from the connector on the 5. master I/O board. Make note of the cable routing before disconnecting the cable. Lift the hard-drive fan assembly out of the chassis.6. 12 1 hard-drive fan assembly cable 2 hard-drive fan assembly Replacing the Hard-Drive Fan Assembly Follow the instructions in “Before You Begin” on page 1. 6. Push the hard-drive fan assembly into the hard-drive fan assembly bay.2. Route the cable through the slot in the hard-drive bay.3. Connect the hard-drive fan assembly cable to the connector on the master 4. I/O board. Replace the drive-bay shroud (see “Replacing the Drive-Bay Shroud” on 5. page 19). Close the PCI shroud (see “Closing the PCI Shroud” on page 6. 18). Replace the left side-panel (see “Replacing the Left Side-Panel“ on page 7. 11). Connect your computer and devices to electrical outlets and then turn 8. them on. 123 1 PCI-fan assembly cable 2 PCI-fan assembly 3 tabs (2) Removing the PCI-Fan Assembly Follow the instructions in “Before You Begin” on page 1. 6. Remove the left side-panel (see “Removing the Left Side-Panel“ on page 2. 11). Open the PCI shroud (see “Opening the PCI Shroud” on page 3. 18). Remove the drive-bay shroud (see “Removing the Drive-Bay Shroud” on 4. page 19). Remove full-length PCI-Express cards, if any (see “Removing the PCI-Express 5. Card(s)” on page 32). Disconnect the PCI-fan assembly cable from the connector on the master 6. I/O board. Press the tabs and lift the PCI-fan assembly out of the chassis.7. Replacing the PCI-Fan Assembly Follow the instructions in “Before You Begin” on page 1. 6. Align the PCI-fan assembly with the metal bracket on the chassis.2. Slide the PCI-fan assembly into the chassis.3. Connect the PCI-fan assembly cable to the connector on the master 4. I/O board. Replace full-length PCI-Express cards, if any (...