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2 Replace the ten screws to secure the system board in place. 3 Reconnect the power, IPMB, SATA, front panel, and system board connectors to the system board. See "System Board Connectors" on page 111. 4 Replace the processors. See "Installing the Processor" on page 59. 5 Replace the heat sinks. See "" on page 57. 6 Replace the expansion-card riser. See "Installing the Expansion-Card Riser" on page 67. 7 Replace the memory modules. See "Installing Memory Modules" on page 65. 8 Replace the cooling shroud. See "Installing the Cooling Shroud" on page 55. 9 Replace the system cover. See "Closing the System" on page 54. 10 Reconnect the system and peripherals to their electrical outlets, and turn on the system. 1 screws (10) 2 system board assembly 1 2 Troubleshooting Your System Safety First—For You and Your System WARNING: Whenever you need to lift the system, get others to assist you. To avoid injury, do not attempt to lift the system by yourself. WARNING: Before removing the system cover, disconnect all power, then unplug the AC power cord, and then disconnect all peripherals, and all LAN lines. 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. Installation Problems Perform the following checks if you are troubleshooting an installation problem: • Check all cable and power connections (including all rack cable connections). • Unplug the power cord and wait for one minute. Then reconnect the power cord and try again. • If the network is reporting an error, verify that the system has enough memory and disk space. • Remove all added peripherals, one at a time, and try to turn on the system. If after removing a peripheral the system works, it may be a problem with the peripheral or a configuration problem between the peripheral and the system. Contact the peripheral vendor for assistance. • If the system does not power on, check the LED display. If the power LED is not on, you may not be receiving AC power. Check the AC power cord to make sure that it is securely connected. Troubleshooting Your System Troubleshooting System Startup Failure If your system halts during startup prior to video imaging, especially after installing an operating system or reconfiguring your system’s hardware, check for the following conditions. See "System Memory" on page 61. For all other startup issues, note the LED panel indicators and any system messages that appear onscreen. See "Power and System Board Indicator Codes" on page 19 for more information. Troubleshooting External Connections Ensure that all external cables are securely attached to the external connectors on your system before troubleshooting any external devices. See Figure 1-1, Figure 1-2, and Figure 1-4 for the front- and back-panel connectors on your system. Troubleshooting the Video Subsystem 1 Check the system and power connections to the monitor. 2 Check the video interface cabling from the system to the monitor. Troubleshooting a USB Device Use the following steps to troubleshoot a USB keyboard and/or mouse. For other USB devices, go to step 5. 1 Disconnect the keyboard and mouse cables from the system briefly and reconnect them. 2 Connect the keyboard/mouse to the USB port(s) on the opposite side of the system. 3 If the problem is resolved, restart the system, enter the System Setup program, and check if the nonfunctioning USB ports are enabled. 4 Replace the keyboard/mouse with another working keyboard/mouse. If the problem is resolved, replace the faulty keyboard/mouse. If the problem is not resolved, proceed to the next step to begin troubleshooting the other USB devices attached to the system. Troubleshooting Your System 5 Power down all attached USB devices and disconnect them from the system. 6 Restart the system and, if your keyboard is functioning, enter the system setup program. Verify that all USB ports are enabled. See "USB Configuration" on page 39 . If your keyboard is not functioning, you can also use remote access. If the system is not accessible, see "Jumper Settings" on page 112 for instructions on setting the NVRAM_CLR jumper inside your system and restoring the BIOS to the default settings. 7 Reconnect and power on each USB device one at a time. 8 If a device causes the same problem, power down the device, replace the USB cable, and power up the device. If the problem persists, replace the device. If all troubleshooting fails, see "Getting Help" on page 119. Troubleshooting a Serial I/O Device 1 Turn off the system and any peripheral devices connected to the serial port. 2 Swap the serial interface cable with another working cable, and turn on the system and the serial device. If the problem is r...
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