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3. Perform the steps in the procedure After Working on Your Computer. 4. Log on to your computer. 5. Right-click the My Computer icon on your Windows desktop and click Properties. 6. Click the General tab. 7. To verify that the memory is installed correctly, check the amount of memory (RAM) listed. Back to Contents Page 1 Pair A: matched pair of memory modules in connectors DIMM_1 and DIMM_2 2 Pair B: matched pair of memory modules in connectors DIMM_3 and DIMM_4 1 cutouts (2) 2 memory module 3 notch 4 crossbar NOTICE: To avoid damage to the memory module, press the module straight down into the connector while you apply equal force to each end of the module. Back to Contents Page Power Supply Dell™ Vostro™ 410 Service Manual Removing the Power Supply Replacing the Power Supply Power Supply DC Connector Pin Assignments Removing the Power Supply 1. Follow the procedures in Before Working on Your Computer. 2. Remove the computer cover (see Removing the Computer Cover). 3. Disconnect the DC power cables from the system board and the drives. 4. Note the routing of the DC power cables underneath the tabs in the computer chassis as you remove them from the system board and drives. You must route these cables properly when you replace them to prevent them from being pinched or crimped. 5. Remove the hard drive cable, CD or DVD drive data cable, front panel ribbon cable, and any other cables from the securing clip on the side of the power supply. 6. Remove the four screws that attach the power supply to the back of the computer chassis. 7. Slide the power supply towards the front of the computer and lift it out. Replacing the Power Supply CAUTION: 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 on at the following location: CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover. 1 screws (4) 2 power supply 1. Set the replacement power supply into place. 2. Replace and tighten all screws that secure the power supply to the back of the computer chassis. 3. Reconnect the DC power cables to the system board and drives. 4. Secure the hard drive cable, CD or DVD drive data cable, and the front panel cables to the securing clips inside the chassis where available. 5. Perform the steps in the procedure After Working on Your Computer. 6. Verify that the computer works correctly by running the Dell Diagnostics. See your Setup and Quick Reference Guide for help running Dell Diagnostics. Power Supply DC Connector Pin Assignments CAUTION: Failure to replace and tighten all screws may cause electrical shock as these screws are a key part of the system grounding. NOTICE: Route the DC power cables under the chassis tabs. The cables must be properly routed to prevent the cables from being damaged. NOTE: Double-check all cable connections to make sure they are secure. CAUTION: Failure to replace and tighten all screws may cause electrical shock as these screws are a key part of the system grounding. DC Power Connector P1 DC Power Connector P2 DC Power Connectors P3, P4, P5, P6, P7, and P8 Pin Number Signal name Wire Color Wire Size 1 3.3 V Orange 20 AWG 2 3.3 V Orange 20 AWG 3 RTN Black 20 AWG 4 5 V Red 20 AWG 5 RTN Black 20 AWG 6 5 V Red 20 AWG 7 RTN Black 20 AWG 8 POK Gray 22 AWG 9 5 V AUX Purple 20 AWG 10 +12 V Yellow 20 AWG 11 +12 V Yellow 20 AWG 12 3.3 V Orange 20 AWG 13 3.3 V Orange 20 AWG 14 -12 V Blue 22 AWG 15 RTN Black 20 AWG 16 PS_ON Green 22 AWG 17 RTN Black 20 AWG 18 RTN Black 20 AWG 19 RTN Black 20 AWG 20 OPEN 21 5 V Red 20 AWG 22 5 V Red 20 AWG 23 5 V Red 20 AWG 24 RTN Black 20 AWG Pin Number Signal Name 18-AWG Wire 1 GND Black 2 GND Black 3 +12 VADC Yellow 4 +12 VADC Yellow Pin Number Signal name 18-AWG Wire DC Power Connector P9 DC Power Connector P10 Back to Contents Page 1 +3.3 VDC Orange 2 GND Black 3 +5 VDC Red 4 GND Black 5 +12 VBDC White Pin Number Signal Name 22-AWG Wire 1 +5 VDC Red 2 GND Black 3 GND Black 4 +12 VADC Yellow Pin Number Signal Name 22-AWG Wire 1 +12 VDC Yellow 2 +12 VDC Yellow 3 +12 VDC Yellow 4 GND Black 5 GND Black 6 GND Black Back to Contents Page System Board Dell™ Vostro™ 410 Service Manual Remove the System Board Replacing a System Board Remove the System Board 1. Follow the procedures in Before Working on Your Computer. 2. Set the computer on its right side on a clean and flat surface. 3. Remove the computer cover (see Removing the Computer Cover). 4. Remove all PC cards from the computer slots. Insert them individually into static protective packaging. 5. Disconnect all the data cables from the CD/DVD/floppy/hard drives where they attach to the system board. 6. Disconnect all front panel and FlexBay module cables where they attach to the system board. 7. Disconnect the 12V and 24-pin DC power cables from the system board. 8. If the ...