220-801 Flashcards
Motherboard purpose is?
To connect all internal & external component like
What is a motherboard?
System board/main board - foundation or MOBO
Intergrated vs nonintergrated
Integrated-component included on the MB RJ-45 port sticking out back ( network connector, video controllers and connector
Nonintergrated- all the functionality needs to come from expansion card
Like network or video
External components are
Printers Monitors LAN External disk drives/DVD/video camera USB and eSATA connectors Firewire ( IEEE 1394) connectors
Internal components are?
CPU ( central processing unit) System memory (RAM-random access memory) Disk drives ( storage) DVD burner/player Expansion cards I/O- input/output USB ports intergrated on MB, connected externally to mouse & keyboard
ATX stands for
Size or form factor
Advanced technology extended 1995, improved on legacy AT
is the primary MOBO used today
305mm x 244mm
Processor & memory are at right (90 degree) right angle to the expansion cards results ;
CPU & RAM are in line with power supply fan, CPU runs cooler
Full length expansion cards can be installed
Micro-ATX
Came out in 1997 designed for same case as the ATX but slightly smaller 244mm x 244mm
CPU & RAM at right (90 degree) angle
Because its smaller the
Quantity of components are reduced with fewer expansion slots & memory modules
Power supply has lesser wattage
FlexATX
Came out in 1999
Derived from ATX as an addendum to microATX
uses a subset of mounting hole for microATX
maximum size 22mm x 191mm
Max out at 4 expansion slots
LPX & NLX stands for
LPX ( low profile extended) came out first but;
Had cooling problems with pentium II CPU
NLX ( new low profile extended)
254mm x 228mm
Distance is small from top to bottom no room for expansion slots to sit in a verticle fashion solution was;
Riser card is a circuit board plugged
Into MB that sits horizontal the riser card is verticle at a 90 degree angle for a short distance and has slots on it to add PCI or older legacy ISA cards into the slots
PCI cards will be horizontal and parallel to the MOBO that gives a lower profile
NLX was created to fix the LPX cooling issues but neither caught on
MicroATX was often used
BTX
Came out in 2004
All have their heat producing components lined up between the air intake vents and power supply fans
CPU can be cooled with passive heat sinks
No fan was needed on top of CPU heat sinks
Less fans meant more efflcient airflow resulting in a quieter system
325mm x 266 mm size
ITX
March 2001
Original design was 215 mm x 191mm
Promoted a new low power C3 processor produced by Centaur Technology
Used in set top boxes ( cable TV box) but manufacturers preferred the FlexATX that’s similar to the ITX MB
Mini-ITX
Came out in 2001
Smaller form factor 170mm x 170mm
Often used in home theater where fan noise wasn’t wanted and was cooled passively
Mounting holes & backplates matched ATX case
Only has one expansion slot ( 32-bit PCI) may have a riser card for added expansion
Nano-ITX
March 2003 120 mm x 120mm Fully intergrated components has very low power consumption Often used for; PVR- personal video recorder Set top box ( cable TV box) Car computer
Pico-ITX & Pico-ITXe
Pico-ITX
Jan 2007
Half the size of nano 100mm x 72mm
Uses DDR2 SO(small outline)DIMM(dual inline memory module) used for laptops
Supports up to 1 GB memory
Pico-ITXe dec 2008
Upgraded chipset that supports up to 2 GB of RAM
upgraded GPU(graphics processing unit)
Modular expansion that supports PCIe ( Express) slots
Mobil-ITX
2009
Smallest x86 motherboard produced by VIA Technologies
60mm x 60mm
No computer ports on the CPU module but has a I/O carrier board that is used
Usage;
Medical, transportation and military
