Lenovo 9935B3U User Manual - Page 19

Locating, parts, system, board

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Locating parts on the system board Figure 4 shows the location of the parts on the system board. Figure 4. System board parts locations 1 4-pin power connector 2 System fan connector 3 Microprocessor fan connector 4 Microprocessor and heat sink assembly 5 Memory slots (4) 6 24-pin power connector 7 Thermal sensor connector 8 Diskette drive connector 9 Cover presence (Intrusion) switch connector 10 SATA connectors (4) 11 Power fan connector 12 Front panel connector 13 Internal speaker connector 14 Front USB connector 2 15 Clear CMOS (Complementary Metal-Oxide Semiconductor)/Recovery jumper 16 Front USB connector 1 17 Serial (COM2) connector 18 Serial (COMl) connector 19 CD-IN connector 20 Front audio connector 21 Adapter card slots (2) 22 PCI Express x16 graphics adapter card slot 23 PCI Express x1 adapter card slot 24 Battery Chapter 1. Product overview 11

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Locating
parts
on
the
system
board
Figure
4
shows
the
location
of
the
parts
on
the
system
board.
±1²
4-pin
power
connector
±13²
Internal
speaker
connector
±2²
System
fan
connector
±14²
Front
USB
connector
2
±3²
Microprocessor
fan
connector
±15²
Clear
CMOS
(Complementary
Metal-Oxide
Semiconductor)/Recovery
jumper
±4²
Microprocessor
and
heat
sink
assembly
±16²
Front
USB
connector
1
±5²
Memory
slots
(4)
±17²
Serial
(COM2)
connector
±6²
24-pin
power
connector
±18²
Serial
(COMl)
connector
±7²
Thermal
sensor
connector
±19²
CD-IN
connector
±8²
Diskette
drive
connector
±20²
Front
audio
connector
±9²
Cover
presence
(Intrusion)
switch
connector
±21²
Adapter
card
slots
(2)
±10²
SATA
connectors
(4)
±22²
PCI
Express
x16
graphics
adapter
card
slot
±11²
Power
fan
connector
±23²
PCI
Express
x1
adapter
card
slot
±12²
Front
panel
connector
±24²
Battery
Figure
4.
System
board
parts
locations
Chapter
1.
Product
overview
11