Dell XPS 8910 Service Manual page 18

9 front I/O panel (F_PANEL)
11 CMOS-reset jumper (CMOS
JUMPER)
13 PCI-Express x16 card slot (SLOT1)
15 PCI-Express x4 card slot (SLOT 4)
17 wireless-card slot (M.2_SLOT1)
19 chassis-fan connector (TOP_FAN)
21 processor release latch
23 coin-cell battery (CMOS BATTERY) 24
25 memory-module slot (DIMM1)
27 memory-module slot (DIMM2)
18
10 media card reader connector
(CARD_READER)
12 password-reset jumper
(PASSWORD JUMPER)
14 PCI-Express x1 card slots (SLOT 2
and SLOT 3)
16 front audio connector (F_audio)
18 CPU power cable (ATX_CPU)
20 processor socket
22 processor-fan connector
(CPU_FAN)
memory-module slot (DIMM3)
26 memory-module slot (DIMM4)