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Windows 7: Problem Nvidia Geforce 8400M GT GPU


28 Nov 2011   #1

Windows 7 Ultimate x64
 
 
Problem Nvidia Geforce 8400M GT GPU

Hello
Recently i updated my laptop Sony Vaio VGN-FZ21M from windows vista home 32 to windows 7 ultimate 64. I didn't update teh OS, i just formatted and reisntalled it from bios. Now i can't find the right drivers for my Graphic Nvidia Geforce 8400M GT GPU. Drivers from geforce website are not working, i get an error message showing that the hardware is not detected.. so i tried to download from Sony support center, but they don't have the drivers for 7 64, just vista 32.
What should i do? any suggestion? I was thinking to reinstall vista 32 and then update it to 7.. If i can't find them
Thanks in advice to all!

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28 Nov 2011   #2

Windows 7 Home Premium x64 SP1
 
 

these are the latest 74 bit ones from Nvidia so they should work NVIDIA DRIVERS 285.62 WHQL
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28 Nov 2011   #3

Windows 7 Ultimate x64
 
 

They don't work, the installation fails because it doesn't recognize the hardware. I found online that i can only download drivers from the sony website, but they give just 32bit version.
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28 Nov 2011   #4

Windows 7 Home Premium x64 SP1
 
 

seems there is already a post here Windows not recognizing NVidia GeForce 8400M GT
hope it helps
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01 Dec 2011   #5

Windows 7 Ultimate x64
 
 

Nothing, it doesnt work
Any other ideas?
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01 Dec 2011   #6

Windows 8.1 Pro x64
 
 

Quote   Quote: Originally Posted by Brokeasajoke View Post
Nothing, it doesnt work
Any other ideas?
Try drivers from this website
Drivers | drivers for mobile cards and laptops | laptopvideo2go.com
My System SpecsSystem Spec
02 Dec 2011   #7

Windows 7 Ultimate x64
 
 

Still the same problem... They don't work
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03 Dec 2011   #8

Windows 7 Ultimate x64
 
 

I resolved installing a 32bit version of windows 7. Computer recognizes the card with sony drivers this way. I wonder if 8400M GT doesnt work with 64bit or it's just me
My System SpecsSystem Spec
03 Dec 2011   #9

Windows7 Pro 64bit SP-1; Windows XP Pro 32bit
 
 

VGN-FZ21M | VAIO and Computing | VAIO | Updates : Sony, Technical support

It was origianlly set up to run XP 32bit. So the CPU etc. most likely will not run any 64bit software.
I'm actually surprised the Win 7 64bit installed.
See above link.

So Windows 7 32bit is all you can use it would appear.

The latest graphics driver is available here direct from Nvidia.> http://www.nvidia.com/Download/index.aspx?lang=en-us
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 Problem Nvidia Geforce 8400M GT GPU




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