Thissectiondescribes thosemajor featuresoftheall-in-onesystemboard
thathavenotbeencoveredintheprevioussection.Evenifyouarenotnew
tothisinnerworkingsofcomputers,youmaywanttoreviewthisinformation.
Although you probably will not have any need to open up your main unit.
Knowingwhat is inside will helpyouto understand the technical termsthat
aresometimeusedtoexplaincomputer.Bylearningwhatisinside,youwill
seewhyyoursystemhasspecialadvantagesovermostofothercomputers
Thesystemboard(alsoknownasthe mainormotherboard)istheheartof
thecomputer.Itcontains almost all of the electronic components that your
computer uses to operate.
While most computers need extra electronic boards ( known as add-on
option or interface cards), this computer has everything that is needed to
operate the system in one-well designed, compact, and very efficient
system board.That is why we call it an all-in-one board.
On the following pages, the major features of the system board are
illustrated.Thecomponentsnotedinthischapterarethosecomponentsthat
youmayneedtobefamiliarwithifyoueverupgradeoraddenhancements
External Freq. JP2 JP3
Auto (default) 1 ~ 2 1 ~ 2
100MHz 1 ~ 2 2 ~ 3
133MHz
JP/CN Function JumperSetting / Connector
JP1 SDRAM Freq. 1-2:100MHz; 2-3:133MHz
JP2/JP3 CPU Bus Freq.
JP6 Clear CMOS 1-2:Normal(default); 2-3:Enable(Clear)
JP7 CIR Password Function 1-2:Disable(default); 2-3:Enable
JP8 Power on by Keyboard 1-2: Disable(default); 2-3: Enable
CN1 Front Panel
CN2/CN5 External USB
CN3 Infrared / Consumer Infrared
CN6 MIC & Speaker-out
CN8/ CN20 HDD/ FDD/ CDROM power
CN10 RCA Jack
CN11/CN14 IEEE 1394 connector (optional)
CN12 S-VIDEO
CN13 Game port
CN16 CD-in
CN17 Line-in/out
CN21 DC_IN Power connector
FAN1/2
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