sony vaio NVIDIA GeForce 8400M GT PROBELM, HELP PLZ

I hav sony vaio vgn-fz11z laptop with Windows Vista Ultimate 32bit and NVIDIA GeForce 8400M GT graphics card. It went black while playing a game. I restarted but it showed black screen with dotted vertical lines and freezed. I restore it in safe mood. It did not show GeForce 8400M GT graphic card but just Standard VGA Graphics Adopter instead. I tried to reinstall drivers (sony vaio orignal) but on restart,it again freezed.

Then i reinstalled fresh vista 32bit. But its just showing standard VGA adopter card. when I Tried to update it with the driver for NVIDIA GeForce 8400M GT graphics card. it refuses saying that driver is up to date. Then i just run the setup file for the driver, it got installed and also shed in device manager as GeForce 8400M GT, but on restart it again hung with black screen with vertical dotted lines. Now i rolled it back to standard adopter VGA card and system boots. System also show vertical white bands as in figure while running or adopter card as shown below.

KINDLY HELP, IM CONFUSED WT TO DO

Hi,

Try downloading the drivers from Sony: -

Sony : VAIO VGN-FZ11Z drivers | Download drivers and updates for VGN-FZ11Z

dear
i donwnload and tried it already.
if you run the setup it installs and shows nividia geforce 8400 in device manager too. but as soon as i restarts, again computer freezes with black screen with doted lines, Then i have to restore it back to VGA restore point and it runs.

i also tried to install driver via update driver option but it says
windows has found the driver but there is a problem, its handle is invalid ((

You might need a new graphics card

Hi,

Sorry to say but this sounds like a good next step

iaV7740308 said:

You might need a new graphics card

Click to expand...

Its a laptop... You can't.

The 8'series gpus were horrible for heat, and lots died from it. Saddly theres not much an adventurous tech can try.

Water cooling!

Sorry, just kidding, not for a laptop

can it get repaired. I mean how can card be replaced and what will be its costs ??

which card will be better if i replace it. the system is

core 2duo T 7300
2 GB Memory
200GB HDD
Blu Ray

Yanno of a good Repair shop ? Might be a good choice, as to repair this may be over your head. But, if you want to do it , you would want to do some research for HOW TO' s .

No, the video card is built on the motherboard of the laptop.
This is what might be needed:
Kind of a Guide: How to Bake Your GPU for Fun and for Profit!

Cooking Vaio laptop motherboard - 8400M GPU solder reflow - YouTube

do aa google search and you'll see this is commo issue:
http://www.google.ca/#hl=en&cp=14&g....,cf.osb&fp=6092d65326578494&biw=1274&bih=847

further update

when i try to install driver using "instal driver automatically" this is what happens
windows detect the card but on installation bounce back this message shown below
also during start up , rather showing in english, the computer is showing strange characters of BIOS

it seems as window is detecting card but not able to install drivers, totally confused

Yha i'm almost certain your cards bulloxed.