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Windows 7: NVidia Geforce 7400 Go / Sony VGN SZ 420N/B

22 Mar 2010   #1

windows 7
 
 
NVidia Geforce 7400 Go / Sony VGN SZ 420N/B

Greetings,
I Did a clean install of Windows 7 professional over Vista and it resulted in a viewable working area that does not fill the Laptop screen to its edges. Several threads have discussed similar issues with this graphics driver but have not addressed fully my problem. When I attempted to download a Vista driver from the Sony site that lists all drivers and software for this model, the screen went black and so I could no longer view in order to fix. I had to restore to a previous date which forced me to reload all my software. I would like to try to load a more appropriate driver but am concerned it will result in a black screen again and force me to once again reload all software.
Looking for two things 1) correct driver for this graphics card and Windows 7
2) Installation procedure so as not to end up without a screen again or method to fix it if I do.
Thanks for any help,
Newby


My System SpecsSystem Spec
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23 Mar 2010   #2

Windows 7 ultimate 64 bit / XP Home sp3
 
 

Welcome to Seven Forums. Go to the Nvidia site and download the driver for your card here is the one for Win 7 32 bit NVIDIA DRIVERS 179.48 BETA If 64 bit change to it. I also llike to suggest creating a restore point before making any changes. Then you can use this program to modify the .inf file. NVIDIA MobilityModder - HardwareHeaven.com Follow the directions step by step and this should fix your problem it has help others in the past. Fabe
My System SpecsSystem Spec
23 Mar 2010   #3

windows 7
 
 

Thanks Fabe,
Going to investigate creating restore point now before attempting to install...
A+
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24 Mar 2010   #4

Windows 7 ultimate 64 bit / XP Home sp3
 
 

So how'd it work out for you? Fabe
My System SpecsSystem Spec
26 Mar 2010   #5

windows 7
 
 

On the road now so can't mess about with it- I'll try it again when I get back.
Thanks,
My System SpecsSystem Spec
27 Mar 2010   #6

Windows 7 ultimate 64 bit / XP Home sp3
 
 

Ok I'll chack back later on. Fabe
My System SpecsSystem Spec
27 Mar 2010   #7
sna

windows 7
 
 

I just tried it. Even though it installed successfully, the device manager says that the Nvidia card is not working properly. So how do I fix this?

Also, how do I got the video card switch working again? The Sony SZ has a stamina to speed switch to switch from the Nvidia card to the Intel one.
My System SpecsSystem Spec
27 Mar 2010   #8
sna

windows 7
 
 

okay I got my nvidia card to work with this:
NVIDIA Forceware 197.25 Released - LaptopVideo2Go Forums
just dl the drivers and insert modified inf into the driver folder.
The stamina to speed switch doesn't work (no pop up to let you reboot) so you have to reboot manually.

Also got my webcam to work. Trying to install BT drivers right now. So I think the only thing left is the FN hotkeys. Any tips?
My System SpecsSystem Spec
27 Mar 2010   #9

Windows 7 ultimate 64 bit / XP Home sp3
 
 

Thanks for posting back your resolution to your video card. Also if you get your Bt working and especially your FN keys post back with that. I know the FN keys have been a problem for a lot of members in the past so getting them to work and posting back how will help a lot of others.Hoping for a good result. I could only find Vista Busines drivers for your Viao on Sony Canada site doesn't even provide 32 or 64 bit.Which can be installed iin compatibility mode Compatibility Mode they list 2 B T drivers as for the FN keys. maybe under Notebook Control and Utilities> Original Sony Notebook Utilities?? http://esupport.sony.com/CA/perl/swu...mdl=VGNSZ420NB Fabe
My System SpecsSystem Spec
28 Mar 2010   #10

Windows 7 Ultimate x64 ®™
 
 

Quote   Quote: Originally Posted by sna View Post
So I think the only thing left is the FN hotkeys. Any tips?
Hi.

You could have a read of this guide for installing Windows 7 on the SZ....

SZ Series Windows 7 Clean install
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 NVidia Geforce 7400 Go / Sony VGN SZ 420N/B




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