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Showing posts with label Hardware problem. Show all posts
Showing posts with label Hardware problem. Show all posts

Desktop Computer Motherboard Meeting The Components





Desktop Computer Motherboard Meeting The Components

The main components of a voltage regulator circuit are the already mentioned chokes
(which can be manufactured using two materials, iron or ferrite), transistors and
electrolytic capacitors (good motherboards will provide solid capacitors, which are better).
The transistors used on the voltage regulator circuit are manufactured under a technology
called MOSFET (Metal-Oxide Semiconductor Field Effect Transistor) and many people call
them simply “MOSFET” (some motherboards, in particular the ones from MSI based on
"DrMOS" technology, use integrated circuits instead of transistors). Some motherboards
come with a passive heatsink on top of these transistors to cool them down, which is a
desirable feature. There are other very important components present on this circuit,
especially integrated circuits. You will always find an integrated circuit called “PWM
controller” and in good designs a tiny one called “MOSFET driver.” We will explain what
they do later.

Computer Motherboard Voltage Regulator Circuit

Everything You Need to Know About Thedesktop or laptop Motherboard Voltage Regulator Circuit

By Gabriel Torres 


Introduction
If you are willing to learn more about motherboard quality you must deeply study the
voltage regulator circuit, which is in charge of taking the voltage provided by the
power supply – namely +12 V – and converting it into the appropriate voltage required
by the CPU, memories, chipset and other circuits present. In this tutorial we will
present an in-depth trip inside the motherboard voltage regulator circuit, showing you
how to identify this circuit, how it works, what the most common projects are and how
to identify good-quality components.

The quality of the voltage regulator circuit is one of the best ways to have an idea
about the overall motherboard quality and life-span for several reasons. A good
voltage regulator won’t have any fluctuations or noise on its outputs, providing the
CPU and other components with a clean and stable voltage, allowing them to work
perfectly. A bad voltage regulator can lead to fluctuations or noise on the voltage that
will lead to malfunctions like the computer crashing, resetting and presenting the
infamous Blue Screen of Death on Microsoft Windows xp or 7.

Bad capacitors : How to spot them

Bad capacitors : 

How to spot them




A bad capacitor or one that is starting to bulge will start to swell at the top, no longer looking indented








Others swell to the point of blowing thus you can see electrolyte brown crud on the top of the capacitors.

Burn Mosfet on Laptop Motherboard


Burn Mosfet on Laptop Motherboard 





Dual N-Channel 30-V D-S MOSFET with Schottky Diode

SI7842DP Dual N-Channel 30-V D-S MOSFET with Schottky Diode 1 2 3 4 5 Vishay Siliconix
SI4914DY Dual N-Channel 30-V D-S MOSFET with Schottky Diode 1 2 3 4 5 More Vishay Siliconix
SI4396DY N-Channel 30-V D-S MOSFET with Schottky Diode 1 2 3 4 5 More Vishay Siliconix
GSS4816S DUAL N-CHANNEL MOSFET WITH SCHOTTKY DIODE 1 2 3 4 5 More GTM CORPORATION
SI4833DY_07 P-Channel 30-V D-S MOSFET with Schottky Diode 1 2 3 4 5 More Vishay Siliconix
GSS6900S DUAL N-CHANNEL MOSFET WITH SCHOTTKY DIODE 1 2 3 4 5 More GTM CORPORATION
SI4833DY P-Channel 30-V D-S MOSFET with Schottky Diode 1 2 3 4 5 More Vishay Siliconix
FDFS6N303_03 N-Channel MOSFET with Schottky Diode 1 2 3 4 5 Fairchild Semiconductor
SI9936BDY_07 Dual N-Channel 30-V D-S MOSFET 1 2 3 4 5 More Vishay Siliconix
SI6862DQ Dual N-Channel 20-V D-S MOSFET with Current Sense 1 2 3 4 5 More Vishay Siliconix

P-CHANNEL POWER MOSFET FOR HI.REL APPLICATIONS LIST

IRF9130SMD P-CHANNEL POWER MOSFET FOR HI.REL APPLICATIONS 1 2 Seme LAB
IRFY9130 P-CHANNEL POWER MOSFET FOR HI-REL APPLICATIONS 1 2 Seme LAB
IRFY9230 P-CHANNEL POWER MOSFET FOR HI-REL APPLICATIONS 1 2 Seme LAB
IRF9530-220M P-CHANNEL POWER MOSFET FOR HI.REL APPLICATIONS 1 2 Seme LAB
IRFY9140 P-CHANNEL POWER MOSFET FOR HI-REL APPLICATIONS 1 2 Seme LAB
IRF9530SMD P-CHANNEL POWER MOSFET FOR HI.REL APPLICATIONS 1 2 Seme LAB
IRFY9140C P-CHANNEL POWER MOSFET FOR HI-REL APPLICATIONS 1 2 Seme LAB
NTE388 Silicon Complementary Transistors General Purpose High Power Audio Disk Head Positioner for Linear Applications 1 2 NTE Electronics
IRFY430M-T257 N-CHANNEL POWER MOSFET FOR HI-REL APPLICATIONS 1 2 Seme LAB
IRF130SMD





N-Channel Power MOSFET FOR LAPTOP MOTHERBOARD



FDS 6982S
FDS 6982S
FDS 6680AS
FDMS 86540




MRF154 N-CHANNEL BROADBAND RF POWER MOSFET 1 2 3 4 5 More Motorola, Inc
STB160NF02L N-CHANNEL 20V - 0.0018ohm - 160A D2PAK STripFETâ?¢ POWER MOSFET 1 2 3 4 5 More STMicroelectronics
STB30NS15 N-CHANNEL 150V - 0.075 ohm - 30A D2PAK LOW GATE CHARGE STripFETâ?¢ POWER MOSFET 1 2 3 4 5 More STMicroelectronics
STB60NF06 N-CHANNEL 60V - 0.014ohm - 60A D2PAK STripFETâ?¢ POWER MOSFET 1 2 3 4 5 More STMicroelectronics
STW13NK80Z N-CHANNEL 800V - 0.53W - 12A TO-247 Zener-Protected SuperMESH Power MOSFET 1 2 3 4 5 More STMicroelectronics
STB80NF03L-04 N-CHANNEL 30V - 0.0035 ohm - 80A TO-262/TO-263 STripFET POWER MOSFET 1 2 3 4 5 More STMicroelectronics
SSM01N60J N-CHANNEL ENHANCEMENT-MODE POWER MOSFET 1 2 3 4 5 More List of Unclassifed Manufacturers
STE180NE10 N-CHANNEL 100V - 4.5 mohm - 180A ISOTOP STripFET] POWER MOSFET 1 2 3 4 5 More STMicroelectronics
STN3NF06 N-CHANNEL 60V - 0.07ohm - 4A SOT-223 STripFETâ?¢ II POWER MOSFET 1 2 3 4 5 More STMicroelectronics
STP36NF03L N-CHANNEL 30V - 0.015 ohm - 36A TO-220 LOW GATE CHARGE STripFET POWER MOSFET 1 2 3 4 5 More STMicroelectronics




MRF173 N-CHANNEL BROADBAND RF POWER MOSFET 1 2 3 4 5 More Tyco Electronics
MRF173CQ N-CHANNEL BROADBAND RF POWER MOSFET 1 2 3 4 5 More Tyco Electronics
MRF177 N-CHANNEL BROADBAND RF POWER MOSFET 1 2 3 4 5 More Motorola, Inc
MRF141 N-CHANNEL BROADBAND RF POWER MOSFET 1 2 3 4 5 More Motorola, Inc
MRF141G N-CHANNEL BROADBAND RF POWER MOSFET 1 2 3 4 5 More Motorola, Inc
MRF141 N-CHANNEL BROADBAND RF POWER MOSFET 1 2 3 4 5 More Tyco Electronics
MRF177 N-CHANNEL BROADBAND RF POWER MOSFET 1 2 3 4 5 More Tyco Electronics
MRF141G N-CHANNEL BROADBAND RF POWER MOSFET 1 2 3 4 5 More Tyco Electronics
UGF27025 25W 2.7 GHz 28V Broadband RF Power N-Channel Enhancement-Mode Lateral MOSFET 1 2 3 4 5 More List of Unclassifed Manufacturers
MRF151 N-CHANNEL BROADBAND RF POWER MOSFET 1 2 3 4 5 More Motorola, Inc


IO CHIP,IO Controller ,Laptop motherboard io controller

IO Controller :


Laptop chip level repair

LAPTOP CHIP LEVEL SERVICE TRAINING





• LAPTOP CHIP LEVEL

Basic Electronics Analog Digital (MODULE 1)
Block Diagram, How work, Basic Problems, Circuit diagram, Repairing Steps of
ADAPTER, BATTERY, LCD, INVERTER, HDD
RAM, KEYBOARD, TOUCH PAD, CD DVD

INTRODUCTION TO LAPTOP MOTHERBOARD (MODULE 2)

• DEFINE DIFFERENT LAPTOP PROBLEMS
• Main Signals of Motherboard And

How motherboards Work with Different ic list .

Common Laptop Notebook Chip.

POWER SUPPLY CHIP :- (MAX1632, MAX1904, MAX1634,SB3052, SC1402, LTC1628 TMP48U ADP3160/ADP3167 ADP3168 APW7060 , ETC)

How to fix USB not found in windows xp, vista,7 and 8



  how to Fix USB not found 

  1. Install USB driver [if need].
  2. Open Device Manager. Locate Devices by Type.
  3. To open Device Manager, either run Devmgmt.msc at a command prompt, or follow these steps:
  4. Click Start, right-click My Computer, and then click Manage.
  5. Expand System Tools, click Device Manager, and then click Devices by type on the View menu.
  6. Right-click USB 2.0 EHCI Host controller, and then click Update Driver.

  7. You can find the USB Host controller entry in either of the following locations:
  8. Universal Serial Bus Controllers.
  9. Other Devices

My PC Power on but No display How to fix

My PC Power on but No display



  1. Check your monitor cable.
  2. Check cmos battery in mother board.
  3. Check / change Processor.
  4. Change BIOS from mother board.
  5. Everything is ok. But problem not solve.
  6. You should go to a computer servicing center.                                                  

How to fix My PC Open then Restart problem



Open then Restart problem


 At fast check your pc internal cooling fan.
  1.   Fan is ok. Open your Processor. Then clean fan and processor. 
  2. You should buy high powerful cooling fan.
  3.     Everything is ok. But problem not solve. 
  4. You should install new Operating system.

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