Table 4-2 System board callouts
Item Component Item Component
(1) Processor (9) WLAN module
(2) Fan (10) Speaker
(3) Hood sensor (11) Dual USB-A ports
(4) Memory modules (12) Solid-state drive
(5) Memory modules (13) Expansion card serial port
(6) CMOS button (14) Solid-state drive
(7) RTC battery (15) Riser assembly
(8) Power button (16) Flex I/O module
38 Chapter 4 Removal and replacement procedures