Having problems with your Sony PC Laptops ?

(Driver) Sony VAIO VGN-AR71M + NVIDIA geForce 8400M GT + XPdowngr

\015 Dear friends\015\012I'm the proud owner of a Sony VAIO VGN-AR71M, but a frustrated user of Windows Vista (its default OS and apparently the only OS supported by Sony on their site for this model). So I've decided to downgrade it to XP64bit. Everything went smooth, except for the part of the NVIDIA driver. I got stuck on it. Does anyone know where to find XP64bit drivers for NVIDIA geForce 8400M GT ? Or a way of tweaking existing drivers or .INFs so that XP64 accepts them?(Which driver installer and modified .INFs should I use?)Your help is valuable and most welcome.\015\012Kind Regards, \015\012opusensemble\015

Answers :

It is not that easy.\015\012
\015\012This laptop has a NVIDIA GeForce 8400M GT - 256 MB graphic card.\015\012
\015\012The right driver is available from Nvidia website here, but it probably won't install on your laptop without modifying the setup files.\015\012Drivers installers are customized , and the inf file must be modifyied to get the installer working.\015\012
\015\012The other alternative is forcing the laptop to use the driver, when installing the driver from device manager, chosing update driver, then "I will chose the driver".\015\012This last procedure may not work.\015\012
\015\012Try first downloading the driver from NVidia, it may not work.\015\012
\015\012In that case go to the installer files for the driver , find the inf file, and open it in notepad to mod it.\015\012Here parameters and instructions to modify the file.\015\012
\015\012Let me know how it goes.\015\012

Please click on the below link to download Xp-64 bit drivers for 8400M GT:


Once you open the above link you need to tick the small square box which has some terms and conditions and then click on the download now button and follow the onscreen instructions to download the driver.

The driver above which you will be downloading is for win xp 64 bit and supports the following models
GeForce GTX 280M
\015\012GeForce GTX 260M
\015\012GeForce GTS 160M
\015\012GeForce GT 130M
\015\012GeForce GT 120M
\015\012GeForce G 102M
\015\012GeForce G 110M
\015\012GeForce G 107M
\015\012GeForce G 105M
\015\012GeForce G 103M
\015\012GeForce 9800M GTX
\015\012 GeForce 9800M GTS
\015\012 GeForce 9800M GT
\015\012 GeForce 9800M GS
\015\012 GeForce 9700M GTS
\015\012 GeForce 9700M GT
\015\012 GeForce 9650M GT
\015\012 GeForce 9650M GS
\015\012 GeForce 9600M GT
\015\012 GeForce 9600M GS
\015\012 GeForce 9600 GT
\015\012 GeForce 9500M GS
\015\012 GeForce 9500M G
\015\012 GeForce 9400M GS
\015\012 GeForce 9400M G
\015\012 GeForce 9400M
\015\012 GeForce 9400
\015\012 GeForce 9300M GS
\015\012 GeForce 9300M G
\015\012 GeForce 9200M GS
\015\012 GeForce 9100M G
\015\012GeForce 8800M GTX
\015\012 GeForce 8800M GTS
\015\012 GeForce 8800 GS
\015\012 GeForce 8700M GT
\015\012 GeForce 8600M GT
\015\012 GeForce 8600M GS
\015\012 GeForce 8400M GT
\015\012 GeForce 8400M GS
\015\012 GeForce 8400M G
\015\012GeForce 8200M G

Just download and install the driver which is mean exactly for win xp 64 bit from the link i have given and your problem will be solved.

Thank you
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