Saturday, 14 November 2015

How to fix motherboard with failed NVIDIA chip

MOST COMMON PROBLEM SYMPTOMS
1. Laptop turns on with garbled video on the internal screen and external monitor.
2. Laptop turns on but there is no video on the screen or external monitor.
MY UNDERSTANDING OF THE PROBLEM
The graphics chip soldered to the motherboard. When the laptop runs hot for a long time, the graphics chip separates from the motherboard and video fails.

Friday, 13 November 2015

How to recover files after OS crashed

1. The guide will work if the OS is damaged but the computer hardware still works fine.
2. The guide might work if the hard drive has some minor damage, like a few bad sectors.
PREPARING FOR RECOVERY
For this recovery I’ll be using a Ubuntu CD (Linux OS). Also, you can create a bootable Ubuntu USB flash drive. Don’t worry, you don’t have to be a Linux guru for that. The Linux interface will be very similar to Windows OS.
You need another working computer to download and create a bootable CD or USB drive.
1. Download the latest version of Ubuntu OS here. When you click on the download button you’ll start downloading an ISO image.
2. Burn this ISO image on a CD or create a bootable USB stick. It’s explained on the same download page, just scroll a little bit down.
3. Find the target drive where you going to save recovered files. You can use an external hard drive or USB flash drive. The target drive can be formatted with any common Windows file system: FAT, FAT32, NTFS.

DATA RECOVERY PROCESS
STEP 1.
Boot your laptop from the Ubuntu CD or USB.
If the computer keeps trying to boot from the internal hard drive, you’ll have to enter the BIOS setup menu and change the boot order. Set your CD/DVD drive or USB stick as first device in the boot order. Safe changes and restart the computer.
From my experience, Ubuntu OS works fine with most laptop and desktop PC hardware and you shouldn’t have any problem booting it to the desktop. It may not work if your computer hardware is too new.
STEP 2.
The computer will start booting from the CD or USB stick.
Now read carefully!
After some time a welcome screen will pop up. On this screen you can choose your language and choose between two options: Try Ubuntu and Install Ubuntu.
Select Try Ubuntu. The Linux OS will run directly from the CD or USB stick without changing any files on the hard drive.
STEP 3.
Ubuntu OS will continue loading and after a while you’ll boot to the desktop, as it shown on the following picture.

STEP 4.
In order to access the internal hard drive, you click on Places in the top toolbar. You should see your internal hard drive in the drop down menu under the Computer.

STEP 5.
When you click on the internal hard drive a new window will open up. In this window you’ll see all files located on the hard drive.
Files on hard drive
STEP 6.
Now plug in your target drive into the computer.
Another window will pop up. In this window you’ll see files located on the external drive. In my case I have no files on the external drive, that’s why the window is empty.
You can move windows same way you do it in Windows OS. Arrange both windows as you like.

STEP 7.
Finally, drag and drop needed files from the internal hard drive to the external drive.
After the transfer is done, you can unplug the external drive and use it on any other computer.

IF YOU HAVE FAILED HARDWARE

Thursday, 12 November 2015

Liquid spills are very unpredictable. Even a small liquid spill can cause serious damage.
IF YOU SPILLED A SMALL AMOUNT OF LIQUID
Let’s say you spilled less than a teaspoon of liquid on the keyboard and it stopped working properly, but anything else works fine.
In this case it could be enough to remove just the keyboard to evaluate the damage. Turn off the laptop, unplug the AC adapter and remove the battery. Now remove the keyboard and take a closer look underneath.

Wednesday, 11 November 2015

polytechnic of ibadan

The admission list of poly ibadan as been released at this morning.
     view your account to see your admission message.

LAPTOP REPAIR




When you plug the AC adapter into the laptop, there are no lights turning on at all. When you push on the power button, nothing happens. The laptop appears to be completely dead, makes no sounds, no indications of life.

Possible problem:
– The AC adapter failed and the battery has no charge left. In this case test the AC adapter with a voltmeter. If it’s dead, replace it with a new one.
– DC jack failed and the motherboard doesn’t receive any power from the adapter. In this case the DC jack has to be replaced.
– Motherboard failed. The motherboard has to be replaced, if it’s not too expensive. Otherwise get ready to buy a new computer.