Dell ChengMing 3901 Tower, Руководство по обслуживанию

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7. SATA connector (white) 8. SATA power cable connector
9. SATA1 connector 10. M.2 WLAN connector
11. SATA0 connector (blue) 12. M.2 PCIe SSD connector
13. PCI 14. PCIe x16
15. PCIe x1 16. Processor socket
Removing the system board
Prerequisites
1. Follow the procedure in Before working inside your computer .
NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup
program after you replace the system board.
NOTE: Replacing the system board removes any changes you have made to the BIOS using the BIOS setup program.
You must make the appropriate changes again after you replace the system board.
NOTE: Before disconnecting the cables from the system board, note the location of the connectors so that you can
reconnect the cables correctly after you replace the system board.
NOTE: Note the routing of all cables as you remove them so that you can route them correctly after you replace the
system board. For information about system-board connectors, see System board connectors .
2. Remove the side cover .
3. Remove the front bezel .
4. Remove the M.2 2230 solid-state drive or M.2 2280 solid-state drive .
5. Remove the wireless card .
6. Remove the 2.5-inch hard drive .
7. Remove the 3.5-inch hard drive .
8. Remove the optical drive .
9. Remove the fan duct .
10. Remove the heat sink and fan assembly .
11. Remove the power button .
12. Remove the intrusion speaker .
13. Remove the intrusion switch .
14. Remove the power-supply unit .
15. Remove the memory module .
16. Remove the expansion card .
17. Remove the coin cell battery .
18. Remove the processor .
About this task
The following images indicate the location of the system board and provide a visual representation of the removal procedure.
52 Removing and installing components