Sony Sz 640 NVidia Gforce 8400m Gs For Windows 7 64bits

Mar 7, 2011

I installed Win 7 ultimate 64 bits on my sony VGN-SZ 640 N, but I Couldn't find a display driver. I have NVidia Gforce 8400m Gs.

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NVIDIA Gforce 8400M GS Not Support By Windows 7?

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since i upgraded my sony vaio from Vista to windows 7 I have problems .When I start some programs I get the message "your device for mass storage is not installed My machine can not find any drivers on the HDD or internet.I need the driver for Nvidia Geforce 8400 GS.The driver from the Nvidia site is not accepted by my sony vaio laptop.VGN-NR31-Z/S

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My System:

Sony Vaio VGN-FZ38M
Windows 7 Home Premium 32bit
Nvidia Geforece 8400M GT
Drivers tried - 306.97

[Code].....

Red entries are my edits. As you can see in nvmt.ini I've copied the Section numbers from the previous entries, as in: %NVIDIA_DEV.0426.9005.104D% = Section006, PCIVEN_10DE&DEV_0426&SUBSYS_9005104D

I've had some limited success...

My system now sees the GPU as an Nvidia 8400M. So far so good. However I'm still getting error messages. Firstly, on reboot, the system stops the card because of driver problems. Secondly, if I run the Nvidia software, it says the monitor is not connected to an Nvidia card. Lastly, if I update the driver, it reverts to Standard VGA in the Device Driver list.

So, It looks as if I need to do more. My immediate thoughts are:

1) Should I be editing the nvmt.inf file, or perhaps another one - nvmm.ini or nvlt.in? How do I know which nv??.inf to edit?

2) In the nv??.inf file, I have no idea which 'section' to point at. I tried 11 and 12 as seen in another thread, but got the same issues. So I tried the same section entries as the next most similar card, but to no avail.

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I've been search in the internet for a while to find the NVIDIA [GeForce 8400M GT GPU] Driver. I tried the file that provided by the LaptopVideo2go.com, but it still not work.

The properties of my Laptop:
Laptop model: Sony VAIO VGN-FZ17G
OS: Windows 7 x64 Home Premium
Display card: GeForce 8400M GT GPU

When I check the Device manger, it still recognize [Standard VGA Graphics Adapter].

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I installed Win7 in my notebook (Sony VAIO VGN-SZ691N) but i couldn't to find proper display driver to install in my notebook.My notebook display is NVIDIA GForce 8400M and also be noted that i tried to install specified driver for vista but during installation process it mentioned that it can not be support by your operation system. i Would appreciate if you can help me.

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Having some problem with my graphic card drivers.

I have a Sony VGN-FZ31M with the graphic card Nvidia 8400M GT

And now i cant install any drivers for it.

Dose anyone know what i can do to fix this? Or link a driver that could work because i have looked everywere and download many different drivers now.

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I'm using a Sony Vaio VGN-NR31Z/S laptop

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I'm currently having problems with my graphic card driver and the aero effects in windows 7. It wont allow me to install the driver or use the aero effects and that is a bummer for me. I really wanted to try it out.

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This is for Torrentg. Can you please create a custom Inf file for me. I tried everything incl downloading the latest Nvidia driver and mMobilityModder to no avail. I am running windows 7 home premium 64 bit on a sony Vaio laptop with Nvidia geforce 8400M GS and below is the info you need on my video card:

PCIVEN_10DE&DEV_0427&SUBSYS_9008104D&REV_A1

PCIVEN_10DE&DEV_0427&SUBSYS_9008104D

PCIVEN_10DE&DEV_0427&CC_030000

PCIVEN_10DE&DEV_0427&CC_0300

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Oct 10, 2009

A couple days ago, I installed Windows 7 (through MSDNAA).

I have a problem with some devices. The situation can be seen here:

I tried updating driver software through windows and it said it was unable to find drivers

I have no idea what the "Unknown Device" may be. The "Multimedia Video controller" I'm guessing is my Nvidia graphics card? The Mass Storage Device I think is my Magicgate memory card slot, but I'm not sure.

I have an Nvidia 8400M GT graphics card and judging by what I've seen on the resolution window (and device manager), I'm currently running on my standard VGA graphics device, and not my Nvidia.

I manually searched for the drivers for my graphics card off the Nvidia site, but every time I try to install it, I get this messege

]I've already tried reformatting and reinstalling windows 7, now I'm running out of ideas. Can anybody please help?

I'm using a Sony Vaio TP3 computer. It's a "desktop" with laptop components and was initially running on Vista.

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Sep 15, 2009

i have a MSI notebook with Nvidia Geforce 8400M G.

i recently installed windows 7 professional (final version, not RC or beta), and discovered a serious problem: it doesn't recognize my Graphic card. instead it claims i have a "Standard VGA graphic adapter" (in dxdiag, device manager etc.). because of that i cant download any Nvidia drivers, cause the setup always says "Nvidia couldn't find a driver compatible with your hardware". that's, again, because windows 7 doesn't recognize my card.

i tried also uninstalling the VGA adapter from device manager, but after restarting it just installing it again.

is there anything i can do? should i wait for windows updates to come and fix my problem? i really don't want to install windows again. is my card not supported, is my Computer not supported?

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Nov 9, 2009

I am using a Sony vaio laptop VGN-SZ75GN. I recently upgraded my windows vista business 32-bit to a windows 7 ulitmate 64-bit using a clean installation.

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Oct 30, 2009

How I installed the latest Nvidia M 186.81 notebook driver to my Sony Vaio VGN-AR51E laptop. Sony is supposed to supply the drivers but they don't for some reason.

The latest laptop drivers from Nvidia work if you alter two lines of information in the appropriate inf file before executing. I downloaded the latest driver from Nvidia (186.81) and ran it so it unpacked into a folder in my C drive. [Message box says it won't install].

From Control panel I got my driver hardware ID

Control panel / Device manager / Display adapters / Properties / Details / Device description/

PCIVEN_10DE&DEV_0426&SUBSYS_9016104D&REV_A1

PCIVEN_10DE&DEV_0426&SUBSYS_9016104D

PCIVEN_10DE&DEV_0426&CC_030000

PCIVEN_10DE&DEV_0426&CC_0300

(You just need the second line here)

Then I opened up the Nvidia driver package and altered NVDM.inf file, in the Display folder, by adding two lines to include my hardware ID

(as you scroll down the inf file and study, you will see where these go, in two different list sections)

%NVIDIA_DEV.0426.01% = Section005, PCIVEN_10DE&DEV_0426&SUBSYS_9016104D

NVIDIA_DEV.0426.01 = "NVIDIA GeForce 8400M GT (Sony Vaio AR51E)"

I included my ID also in ListDevices.txt in the NVDM.inf section

and in modes.txt (but may be superfluous - I am no expert!)

Also I put the two lines in the NVAM.inf (but may be superfluous)

Don't forget to save all.

I deleted the old Nvidia driver rebooted and ran setup on the new Nvidia driver! It worked!! Hope this helps you. PYL

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