By MellowD / Tips and Advice / / 0 Comments

Why Does My Laptop Screen Flicker?

Why does my laptop screen flicker?

This is getting really annoying, and even causing me eye strain.

The computer might not be going in to hibernator energy saving modes correctly.

How would I fix that? Control-alt-delete might be a solution for that.

That’s Microsoft’s default solution for everything.

If it is a software problem, you might want to uninstall any apps you’ve got that are taking up resources to the point it can’t present a decent image.

It is like trying to run a video game and other graphics intensive applications.

It isn’t like I’m gaming a lot.

The video card could be going out.

That’s especially true if you are over-clocking it or if it is getting overheated.

It isn’t like I’m trying to run “The Last of Us” on a cheap PC without a video card.

The screen itself might be burning out.

I didn’t even know that could happen.

If it is cracked, it could interfere with the image.

I would notice a cracked screen.

Flipped bits could cause something that looks like flickering.

The only thing flipping out is me worrying if I need a new laptop.

Or you might have messed up the refresh rate,and the flickering is because it can’t keep up with the refresh rate.

That at least is easy to fix without refreshing the whole computer.

I wonder if that is like replacing the gas cap.

Never heard of it.

You keep the gas cap and replace the rest of the car.

What’s another solution? Take the computer to the repair shop and let them see if there is a burned out resistor or component on the video card that needs to be fixed.



By MellowD / Tips and Advice / / 0 Comments

How to find out shorting in laptop motherboard First Set your Multimeter on Diode or continuity mode Connect the black probe to the ground of the Board Fix it to any of the ground hole or use crocodile clip And reconfirm that the ground is connected properly So the ground is connected properly.

Let’s troubleshoot and find out the shorting Test the SMD Coil on the board with multimeter Testing Method : One Probe connected to Ground and other Probe on any side of the coil If the coil is Ground, You will here the buzzer sound Check all the coils, with continuity test If any of the coil is short, Motherboard will not Turn On Battery Detection Resister.

Troubleshooting Procedure: Remove Coil one by one with the help of hot air gun and locate to the fault section Let’s start with the first coil and test the board As you can see the first coil has been removed We will remove all the components, in the section (ie IC, capacitors, mosfet.

) We have found the faulty Mosfet, from the same section Mosfet Testing Method Touch Porbe to both side, you should get reading (240 to 960 = Ok) Recomended (450 – 550 = Perfect condition) if not then the mosfet is Short or Leak Replace the faulty part with same or equivalent part with the help of data sheet.