Dell Vostro 3470 - System Board Layout; Cover; Removing the Cover

System board layout
1 Power switch connector 2 M.2 connector for WIFI card
3 Coin cell battery connector 4 SATA power connector (Black)
5 SATA0 connector (Blue) 6 SATA3 connector (Black)
7 ATX Power Connector(ATX_SYS) 8 SATA2 connector (White)
9 Service mode / password clear/CMOS clear jumpers 10 PCI-e X16 Connector(SLOT2)
11 PCI-e X1 Connector(SLOT1) 12 M.2 SATA Connector for SSD
13 Processor socket 14 CPU Power Connector(ATX_CPU)
15 CPU Fan Connector(FAN_CPU) 16 Memory-module slots (DIMM1, DIMM2)
Cover
Removing the cover
1 Follow the procedure in Before working inside your computer.
2 Follow the steps to remove the cover:
a Remove the two 6-32xL6.35 screws that secure the cover to the computer [1].
b Slide the computer cover towards the back of the computer [2].
Removing and installing components 11