Dell INSPIRON 531S Owner's Manual page 108

1 power for cpu
(ATX_CPU)
4 memory module
connectors
(DIMM_2)
7 memory module
connectors
(DIMM_3)
10 serial ATA drive
connectors (SATA3)
13 CMOS jumper
(CLEAR CMOS)
16 serial ATA drive
connectors (SATA0)
19 FlexBay connector
(F_USB1)
22 IEEE connector
25 PCI Express x1
connector (PCIE_X1)
28 one LAN and two
USB connectors
31 video connector
(VGA)
108
Removing and Installing Parts
2 processor socket
(CPU)
5 memory module
connectors
(DIMM_1)
8 main power connector
(ATX_POWER)
11 serial ATA drive
connectors (SATA2)
14 front panel connector
(F_PANEL)
17 front USB connector
(F_USB3)
20 PCI connector (PCI3) 21 PCI connector
23 front audio
(F_AUDIO)
26 PCI Express x16
connector
(PCIE_x16)
29 two USB connectors
3 processor fan
connector
(CPU_FAN)
6 memory module
connectors
(DIMM_4)
9 floppy drive
connector (FLOPPY)
12 password jumper
(CLEAR_PW)
15 serial ATA drive
connectors (SATA1)
18 front USB connector
(F_USB2)
(PCI2)
24 battery socket
27 audio connectors
30 chassis fan connector
(CHASSIS_FAN)