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problem of overclocking


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Well, i have read some topics about how to overlock the nvidia 8400M GS ...

but i got a problem, i can't overclock it, i can underclock with riva turner/ati tool but they dont load the new changes when i overclock.

So i tried some forceware but without result ... i see in one post that in some case it is needed to flash the bios, but wich one cpu or video card ? and how can i have a new bios ?

otherwhise i tried to kill the nvidia application in the background but it seem another program is turning in background and when i go to 3d it make changes ... so it can expect why riva or ati tool don't have the control.

also, when i use driver cleaner pro, to delete nvidia drivers : it always deletes files and registry keys even if it just done it 1 sec ago.... are the files protected ?

my pc :

pavillion dv9515ef

Intel core 2 duo 1.50ghz t5250


motherboard :pavilion notebook dv 9500

chipset :intel crestline : PM PM965

video card=nvidia 8400m gs 512m

winxp 32bit

thx to answer of you know what is happening.

Edited by lustar
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