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15 Oct 2011 16:16
ANVHIL
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How Motherboards Are Made: A Gigabyte Factory Tour


Without a doubt, motherboards are the most complex and essential part of the modern PC. Not only do they hold the chipsets that pass data from peripherals, drives and memory to the processor, they also provide slots and ports for all your other system components and the circuits through which all data must pass.

Perhaps surprisingly then, motherboards get very little respect in the computing press as compared to other components. They are perpetually the team player and not the star of the show, and are generally priced as such.

With this in mind, it's surprising to learn the amount of work and machinery involved in manufacturing a single motherboard. We'd vaguely imagined some sort of stamping process where all components are slapped onto the bare board in one step and soldered, before being boxed in a big room full of bored workers.

Sure there'd have to be some testing, but how intense could it be?

As PCSTATS recent trip to Gigabyte's Nan-Ping factory in Taiwan showed us, there's a lot more to it. In fact, producing and testing a single motherboard involves a mind-boggling host of automated machines, people and processes; so we'd like to detail the whole assembly line we toured while covering Computex, to give you a feel for how things are really made.

[Image: lead_GigabyteFactory.jpg]
Gigabyte's Nan-Ping factory is a modern building in rural Taiwan. Built in 1986, this 8-story factory encompasses 45,000 square meters of work space, and includes 18 SMT lines, 10 DIP lines, and 9 Testing lines.

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[Image: GigabyteFactory_building.jpg]
Nan-Ping's capacity is 800,000 motherboards and 400,000 videocards a month. Gigabyte has several other factories in Taiwan and mainland China that each manufacture motherboards, videocards, and other products

[Image: GigabyteFactory_entrance.jpg]
Follow along as PCSTATS walks through the whole motherboard manufacturing process.


Entering the Motherboard Factory

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[Image: GigabyteFactory_model.jpg]
Here's a scale model of the Nan-Ping factory, complete with its own guard house

[Image: GigabyteFactory_DSCF3224.jpg]
Inside the lobby of Nan-Ping

[Image: GigabyteFactory_DSCF3228.jpg]
The double-door air shower helps keeps dust on the factory floor down

Before entering the factory floor, and especially the SMT (Surface Mount Technology) Lines on the 7th floor of the Nan-Ping factory, workers must go through an air-shower. This small closet-sized enclosure is filled with air nozzles that blast out a stream of air towards three or four occupants at a time, dislodging any dust or particles on their clothes which could cause problems for the sensitive SMT process.

[Image: GigabyteFactory_DSCF3231.jpg]
Gigabyte's current production lines, 14 in total for this factory


First steps in Motherboard Manufacturing

Gigabyte out sources the PCBs (Printed Circuit Boards) it uses for its motherboards to a PCB manufacturer. These arrive already etched with the necessary circuit traces, pre-coloured and pre-drilled with the holes that are needed to insert components like the CPU socket and PCI slots. Other than this though, they are completely bare, containing no components or solder.

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[Image: GigabyteFactory_DSCF3285.jpg]
Weekly production sheet identifying the motherboard models

These bare PCB boards are stored on racks and loaded into the automated feeder for the DEK Infinity solder paste printer to start their journey towards becoming completed motherboards.


Solder Paste Screen Printing

Before being sent to the SMT (Surface Mount Technology) machines that will mount chips and resistors onto the PCB, each motherboard must be prepared by solder paste printing, a technique which involves spreading solder paste over a nickel sheet, laser cut to correspond to the motherboard being assembled. This nickel sheet 'screen' is then moved into the printer and the motherboard positioned precisely under it. The paste is distributed over the screen by the printer so it is squeezed through the holes in the nickel sheet to adhere to the motherboard underneath in precise areas.

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[Image: GigabyteFactory_smt1.jpg]
The DEK Infinity solder paste screen printer (left)

[Image: GigabyteFactory_DSCF3234.jpg]
Mixing and applying the solder paste to the nickel screen

[Image: GigabyteFactory_DSCF3236.jpg]
The solder paste: particles of solder suspended in flux

After having the solder paste applied, the bare PCB boards are stacked into an automated vertical storage rack called a PCB Buffer Loader, until ready to be passed through to the SMT assembly machine.

[Image: GigabyteFactory_DSCF3238.jpg]
Solder printed motherboards awaiting the SMT process


SMT Assembly Line

The bare PCBs (Printed Circuit Boards), with solder paste applied in the right places, take the second step towards becoming fully-fledged motherboards here. The SMT (Surface Mount Technology) machines pick and place the tiny resistors, solid-state capacitors and other IC (Integrated Circuit) chips onto the PCB at ultra high speeds. If you look at the motherboard in your computer, some of these small components are no more than 1mm square!

Each board passes through two sets of FUJI CP742 high speed SMT machines, the 'small pick and place' and 'large pick and place' devices. Each machine in the set adds a few components, from tiny resistors up to the North and Southbridge chips. Belt fed from tape-like cartridges of components, the SMT gear places components like a machine gun, taking as little as an eighth of a second to place a component with exact precision on the PCB.

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[Image: GigabyteFactory_smt2.jpg]
Gigabyte's SMT production lines

All chipset ICs, plus the BIOS chips and any integrated peripherals (but not their connectors) are added to the top of each motherboard-to-be during this step of the process. The PCB then passes through a Heller 1900EXL hot convection oven to fully melt and set the solder paste, securing the components in position. Motherboards that require components to be placed on the underside of the board are now flipped and sent through the solder screen printing and SMT process again.

[Image: GigabyteFactory_DSCF3239.jpg]
The FUJI pick and place SMT machines mount components on each motherboard

[Image: GigabyteFactory_DSCF3241.jpg]
components are fed into the SMT machines from tape-like reels

[Image: GigabyteFactory_DSCF3246.jpg]
An SMT machine about to start placing components on a motherboard

[Image: GigabyteFactory_DSCF3245.jpg]
Each of the 16 or so heads places a different component in as little as 1/8 of a second (flash frozen in this picture)


SMT Process Continues

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[Image: GigabyteFactory_DSCF3248.jpg]
A motherboard part way through the SMT process. Large ICs have yet to be placed.

[Image: GigabyteFactory_DSCF3250.jpg]
Control screen of one of the large Fuji SMT machines

[Image: GigabyteFactory_DSCF3249.jpg]
[img]Surface mounting in progress of larger IC's[/img]

The larger components, Mosfets, audio chips, northbridge chipsets and various other IC's are placed with the aide of an optical system that ensures tolerances between solder leads and traces are correct. Note that this machine is 35% through its 361st Gigabyte GA-8TRS300M motherboard of the day.

[Image: GigabyteFactory_DSCF3252.jpg]
Storage racks for larger SMT chips






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15 Oct 2011 16:17
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Pick and Place Chipsets

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[Image: GigabyteFactory_DSCF3254.jpg]
Processors sockets are set up so that they can be picked up by the machine and placed on the PCB

Trays of socket 478's and ATI Radeon 9100IGP chipsets await feeding into the large FUJI QP341 pick and place SMT machines.

[Image: GigabyteFactory_smt4.jpg]
Large JUKI KE-2010L SMT chip machine. Chips are grabbed from a tray at upper left.

[Image: GigabyteFactory_smt5.jpg]
Each IC is visually inspected by the machine with small light boxes to ensure no defects in solder leads or solder balls

[Image: GigabyteFactory_smt6.jpg]
The IC is then carefully placed on the PCB. It takes 1-2 seconds per large IC component.


Convection Ovens for PCB

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[Image: GigabyteFactory_smt7.jpg]
A look down the SMT production line

[Image: GigabyteFactory_DSCF3256.jpg]
Flip side SMT line

With all the IC components placed on the PCB, the motherboards have gone through a Heller 1900EXL hot air convection reflow oven to solder everything in place.

[Image: GigabyteFactory_smt9.jpg]
A look at some video cards, post SMT and awaiting further assembly


In-Circuit Testing and Visual Inspection

The motherboards now go through an AOI (Automated Optical Inspection) machine which will catch any obvious SMT or soldering defects.

They are then visually inspected by a worker using a plastic mask, so that they can easily spot any missing or misaligned components.

Finally the motherboards undergo an 'in-circuit test' which involves testing each motherboard's circuit paths, electrical characteristics and the chips that have just been added by applying electrical current to certain specific test points on the board. Each motherboard is placed on a special rack and a testing board is lowered onto it, making contact with the motherboard at specific points. Current is applied, and the results are analyzed by the technician running the station. The whole process takes less than a minute.

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[Image: GigabyteFactory_DSCF3259.jpg]
The Gigabyte in-circuit electronic test bed

[Image: GigabyteFactory_DSCF3258.jpg]
Each board is mounted on the test bed...

[Image: GigabyteFactory_DSCF3257.jpg]
The rack is lowered, making contact with test points on the board

[Image: GigabyteFactory_DSCF3277.jpg]
Assorted spare test rigs gathering dust on a shelf

[Image: GigabyteFactory_DSCF3279.jpg]
A different rig is needed for every motherboard model Gigabyte produce. This in-circuit tested is for the Gigabyte GA-8KNXP motherboard.


Gigabyte's Enormous Automated Warehouse

It's not part of the process, but we should take a minute here to mention the huge automated warehouse that Gigabyte uses to store its various supplies and finished products on site. This vertical storage area is eight stories tall. Eight stories of computer tracked automated pallets that can be raised or lowered to a number of different off loading points, one for each floor. It's hard to convey the Blade Runner-like effect of this much automated machinery in one place, but these pictures give you a small idea of what it's like.

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[Image: GigabyteFactory_DSCF3273.jpg]
One of the mechanized pallets in Gigabyte's vast storage area

The pallets are loaded by workers into docking stations before automated load handling towers come over to pick up the pallet and 'file it away in this 8-story warehouse. The process is 100% automated, and pallet are tracked using the numbers visible on the LED display above.

[Image: GigabyteFactory_DSCF3276.jpg]
Eight floors straight down surrounded by moving machinery...

[Image: GigabyteFactory_inventory.jpg]
New components heading up into the warehouse






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15 Oct 2011 16:18
ANVHIL
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SMT Automated Reel Storage

Apart from the warehouse, the production line floors also contained large storage areas, some with racks of component roll cartridges for the SMT machines and some with sealed, moisture-proof cabinets for expensive core-logic components. We also got to see a technician programming BIOS chips prior to their installation.

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[Image: GigabyteFactory_DSCF3260.jpg]
Fine motivational strategy... 'lesser' mistakes are acceptable

[Image: GigabyteFactory_smt8.jpg]
Automated BIOS chip and IC storage cabinet. Chips are stored in rolls to be used in SMT machines, and inventory is computer controlled.

Given the vast number of tiny electric parts that go into a motherboard, we had envisioned buckets of resistors, capacitors, and IC's. However, given the speed and automation of the factory machines, the time it would take for a machine to pick out a 1mm square resistor from a pile, oriented it correctly, and place it on the PCB would be too long and inefficient. Thus, all components are stored on film reels, each contained it a little plastic cup. The components are pre-oriented, and the high-speed automated machines can handles these parts with machine-gun like speed.

[Image: GigabyteFactory_DSCF3261.jpg]
More storage for other SMT components

[Image: GigabyteFactory_DSCF3263.jpg]
Programming, labeling, and testing BIOS chips


The Expensive Goods

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[Image: GigabyteFactory_DSCF3266.jpg]
Special moisture free cabinets for storing expensive items...

[Image: GigabyteFactory_DSCF3268.jpg]
...Like Intel chipsets

Expensive and sensitive components like Intel i865, i875, 915P, 925X chipsets, south bridges, Radeon's and Geforce GPU's are stored in special moisture free pressurized, temperature controlled cabinets.

[Image: GigabyteFactory_DSCF3269.jpg]
Here we see a roll of Radeon Mobility and Geforce GPU's


Manual Assembly (DIP) Line

Despite what you might imagine, people are still very much a necessary part of manufacturing motherboards, and not just for testing and Quality Assurance either. The next step in bringing these bare PCB motherboards to life involves a manual assembly line where all the components that need to be plugged into the pre-drilled holes in the board are added.

Every plug and I/O interface is added at this point, from the PCI slots to the CPU socket to the back panel connectors. As well as slots and sockets, capacitors also require anchoring at the bottom of the board, so they are added during this step too. These parts are not soldered to the board during this step, but are simply plugged in, in assembly line fashion.

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[Image: GigabyteFactory_dip1.jpg]
Manual assembly line... Long manual assembly line!

[Image: GigabyteFactory_DSCF3297.jpg]
Each worker adds one or more specific components to each board

[Image: GigabyteFactory_DSCF3298.jpg]
Look how a new component appears at every station

[Image: GigabyteFactory_DSCF3300.jpg]
Placing capacitors


Installing Sockets and Ports

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[Image: GigabyteFactory_DSCF3295.jpg]
Piles of components are kept beside every station, here DDR sockets.

[Image: GigabyteFactory_DSCF3294.jpg]
workers in the assembly line need to be fast and precise

[Image: GigabyteFactory_DSCF3291.jpg]
Sound I/O mountings ready for manual installation

[Image: GigabyteFactory_DSCF3292.jpg]
The conveyor belt moves quite fast


Wave Soldering

The slots, sockets, connectors and capacitors that were plugged into the board on the manual assembly line now need to be soldered to the motherboard. Manual soldering would be too time consuming, so Gigabyte makes use of a special soldering process called wave soldering.

This imposing piece of mechanics is the final step on the conveyor belt that runs through the manual assembly lines. It runs the bottom of each motherboard through a 'wave' of liquid solder (induced by flowing the molten solder over a raised ledge) at a precise height, so that the metal leads of the plugged-in components are coated with solder. Each board passes through this wave for 2-4 seconds, after which it is allowed to cool naturally so the solder can solidify around the contacts.

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[Image: GigabyteFactory_DSCF3301.jpg]
About to go into the solder wave machine.

[Image: GigabyteFactory_DSCF3303.jpg]
Note the lead weight on the socket. This stops it floating up in the solder

Larger sockets sometimes have a tendency to float up a little, so small lead weights are used to hold these sockets down.

[Image: GigabyteFactory_dip2.jpg]
The wave solder reflow machine


Flowing Over The Molton Solder

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[Image: GigabyteFactory_DSCF3288.jpg]
Control panel for the wave solder machine. Hot!

[Image: GigabyteFactory_dip3.jpg]
Inside the solder wave reflow machine. Note the 'waves' of liquid solder at 242 degrees Celsius

[Image: GigabyteFactory_DSCF3289.jpg]
Motherboards going through the solder wave machine

[Image: GigabyteFactory_DSCF3323.jpg]
Motherboard passing over the 'wave' of liquid solder.






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15 Oct 2011 16:18
ANVHIL
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(This post was last modified: 15 Oct 2011 16:20 by ANVHIL.)
Buffing and Cleaning

The almost-completed motherboards are manually buffed and brushed to smooth down the solder joints at the bottom of the motherboard and remove any loose solder. The masked workers who do this thankless job are confined in little cubicles of plastic to prevent stray particles from contaminating the assembly lines.

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[Image: GigabyteFactory_DSCF3304.jpg]
Worst job in the building? Cleaning the motherboards post-solder


Final Assembly

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In the next series of steps, workers adds the last couple of necessary components onto the board. Any required chipset heatsinks are added here as well as the plastic CPU retention bracket, and motherboard battery. When this is complete, the boards are sent off to Quality Assurance for testing.

[Image: GigabyteFactory_DSCF3322.jpg]
Stack of chipset heatsinks


Testing Stage 2: Full Hardware Tests

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This test is designed to establish that each motherboard works correctly under 'normal' operating conditions. Each testing station has a special rack that is lowered pneumatically, automatically plugging in the test PCI and videocards, and port 80 card while the technician attaches IDE cables, memory and processor and heatsink manually. Interestingly, the test CPU is attached to the bottom of the heatsink with adhesive, and the entire assembly is just placed into the socket in one quick movement.

A second pneumatic connector attaches parallel, serial, PS/2 and USB connectors as well as video sound and networking jacks to the rear I/O panel of the motherboard automatically in one go. The tester adds hard drive, CD and floppy cables attached to components hard mounted to each test station.

[Image: GigabyteFactory_test2.jpg]
Gigabyte motherboard test center

Hooking up each motherboard for testing takes only about a minute. Once set up, the motherboard is powered on and booted into a DOS test program and the functionality of every component and peripheral is confirmed.

Every motherboard is tested for functionality before moving off to the final stage of testing.

[Image: GigabyteFactory_DSCF3305.jpg]
Pneumatic test rack clamps down onto completed motherboard to reduce worker fatigue from installing videocards and PCI Port-80 test cards all day long

[Image: GigabyteFactory_DSCF3306.jpg]
Note the drives mounted into the test rack.

[Image: GigabyteFactory_DSCF3307.jpg]
A second pneumatic arm holds connectors for the rear I/O ports, right

[Image: GigabyteFactory_DSCF3308.jpg]
The entire test bed


Automated Testing Platforms

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[Image: GigabyteFactory_DSCF3314.jpg]
Without the motherboard

[Image: GigabyteFactory_DSCF3315.jpg]
Bottom plate is milled out for each motherboard

[Image: GigabyteFactory_DSCF3316.jpg]
Note the pneumatic assembly top right holding the all I/O connectors

Any boards that fail some tests or need more attention are sent to a manual testing area where technicians test individual components and perform more advanced diagnostics and reworking where necessary.

[Image: GigabyteFactory_DSCF3309.jpg]
Manual testing of a socket 775 motherboard. This looks more familiar

[Image: GigabyteFactory_DSCF3313.jpg]
Every port and connector must be tested for functionality

[Image: GigabyteFactory_test.jpg]
Senior technicians perform more in-depth tests and repairs at a rework station


Testing Stage 3: Burn In

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The final stage of testing is the stress test. Gigabyte's Nan-Ping factory has a few huge, temperature controlled glass cabinet where a large number of motherboards can be hooked up with a variety of videocards and stress tested. Each system is run through several hundred loops of 3D Mark 2001 in 40C temperatures. This tests stability under the most grueling of conditions.

[Image: GigabyteFactory_DSCF3318.jpg]
Gigabyte's glass 'burn-in' testing cabinets

[Image: GigabyteFactory_DSCF3319.jpg]
Temperature is set to 40 degrees. The benchmark is 3DMark 2001

[Image: GigabyteFactory_DSCF3321.jpg]
The PCI daughter board indicates which test loop each motherboard is on

[Image: GigabyteFactory_test1.jpg]
Every single motherboard is tested this way, all with different videocards from various manufacturers


Final Motherboard Packaging

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Once the motherboards are fully stress tested, they are ready to be packaged and shipped. Gigabyte, like most manufacturers, orders their motherboard boxes from a separate manufacturer and sends them off to be printed. Once the printed boxes are received, they pass through a machine which folds and shapes them correctly, then it's down another manual assembly line where workers place each tested motherboard into its box.

In go any promotional stickers, the cardboard divider, antistatic foam, software and other peripherals, then they are sent off to be packed into shipping boxes. The box packing machines are automated, wrapping packing plastic strips around each box faster than the human eye can see!

[Image: GigabyteFactory_DSCF3326.jpg]
Adding stickers and accessories to the box

[Image: GigabyteFactory_pack2.jpg]
Box shaping machine

[Image: GigabyteFactory_DSCF3327.jpg]
Newly shaped boxes ready for motherboards

[Image: GigabyteFactory_pack1.jpg]
Reference board for motherboard box contents

[Image: GigabyteFactory_pack3.jpg]
Sealing boxes with plastic binding

[Image: GigabyteFactory_DSCF3328.jpg]
Stacked boxes of motherboards ready for shipping around the world


We hope you've enjoyed PCSTATS visual tour of how motherboards are made, and have a better idea of how much work goes into every component of your system!

Our thanks goes out to Gigabyte for the unprecedented access they gave PCSTATS to photograph every square inch of the Nan-Ping factory in Taipei, Taiwan.

Sumber : http://forumcirebon.tk/thread-384.html Blah
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15 Oct 2011 17:00
QUTUB
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Thanks inpohnya Top






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[b]"Melihat ke dalam"[/b]

18 Oct 2011 08:37
BebasKebas
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kayak ngarti bahasa inggris aja Bad

18 Oct 2011 09:59
Herman Dexter
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industri dgn technology tinggi, tapi ttp juga pakai mesin merk dari Jepang

18 Oct 2011 10:14
SINKWONK
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Good Manafff... bener ye...






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18 Oct 2011 11:46
sniper78
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Artikelnya menarik sekali ndan !!

Top Thanks

18 Oct 2011 14:03
zefta09
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sdhbsh dah tau lom yaaa........

18 Oct 2011 17:47
amankmoer
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manttttttttttttttaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbb

19 Oct 2011 10:19
setiawanoy
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mantab ndan.... siip.....

19 Oct 2011 13:24
troj4n
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mantebzzzzz Top

19 Oct 2011 20:07
Bo_JeSS
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Pusing kepala saya lihat IC di motherboard, belum lagi memahami algoritma pemrogramannya, digital processing nya, beh Cry

20 Oct 2011 08:14
McQueen
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Hover thanksnya mana sih. Pusing
Baru tahu ane gitu ternyata bikinnya. Blah


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