Identifyingpartsonthemotherboard
Themotherboard(sometimescalledtheplanarorsystemboard)isthemaincircuitboardinyourcomputer.
Itprovidesbasiccomputingfunctionsandsupportsavarietyofdevicesthatarefactory-installedorthat
youcaninstalllater.Thefollowingillustrationshowsthelocationofconnectorsandcomponentsonthe
frontofthemotherboard.
1 2 3 4 5
10
11
121516
17
18
19
1314
7
6
9
8
1.12Vpowerconnector
11.FrontUSBconnectors(2)
2.Microprocessorandheatsink
12.LPCdebugheader
3.Microprocessorfanheader
13.MiniPCI-Eslot
4.Memoryslots(2)14.PCIexpressX1adapterslots(3)
5.Thermalsensorheader
15.ClearCMOSjumper
6.Harddiskdrivepowerconnector16.Frontaudioconnector
7.Powerconnector
17.PCIexpressX16adapterslot
8.Powerfanheader
18.Systemfanheader
9.SATAconnectors(4)
19.Battery
10.Frontpanelconnector
Chapter7.Locatingconnectors,controlsandcomponents25
