System board connectors
Refer to the following illustration and table to identify the system board connectors for your model.
Table 4-1
Identifying system board connectors
Callout
Label
(1)
PWRCPU
(2)
XU1
(3)
CPUFAN
(4)
DIMM1
(5)
DIMM2
(6)
DIMM3
(7)
DIMM4
(8)
HSENSE
(9)
SPKR
(10)
SSD2
(11)
SSD1
(12)
PWR
(13)
PWRCMD
Component
4-pin processor power
Processor
Processor fan
Memory module
Memory module
Memory module
Memory module
Hood sensor
Speaker
M.2 solid-state drive
M.2 solid-state drive
6-pin main power
Power supply
Callout
Label
(14)
WIRELESS
(15)
SATA PWR0
(16)
SD RDR
(17)
SATA0
(18)
SATA2
(19)
SATA1
(20)
PSWD
(21)
BIOS BATTERY
(22)
CMOS
(23)
X16PCIEXP
(24)
X1PCIEXP1
(25)
COM
(26)
COMA
System board connectors
Component
WLAN module
Drives
Card reader
Hard drive
Any SATA Device other than
primary hard drive
Any SATA device other than
primary hard drive
Clear system passwords
RTC battery
Reset CMOS
Expansion card
Expansion card
Option port
Optional second serial port
27