in the last post I told
hello my friends,
5 months ago my pc used to turn off automatically from 5-6 hours
Later my pc's LCD broke and I changed my LCD. Then my pc used to shut off 1-2 hours or some random lines and colours come on the screen. When searched for remedy for the shutting down problem, I came to know about overheating problem in my pc and I came to know that my heatsink was clogged up. But first I decided to clear the LCD problem, I Tried restoring the programs in my pc but unfortunately my shutted off during system repair. My windows got corrupted and I was not able to boot to windows. Then I tried installing ubuntu but it used shut off during installation, yesterday I used a vacumn cleaner to clean the heatsink and I successfully Installed ubuntu but still the pc shuts off without overheating and again LCD shows some lines and colours.
Specs of my laptop
Toshiba Satellite l300 (3 years old)
2 gb ram
250 gb hdd
Intel pentium dual core
Ubuntu 11.04 OS
But I have found one more thing, All of these happen when laptop is plugged in!. So is this a power supply problem or fried motherboard?