Samsung Np300v5a Laptop Integrated Nvidia Card Not Working Propertly

[Karlos100]

i made a format to my laptop a view weeks ago, first after one week my pc did not boot video card and i did not know what caused this and i made a bios reset, after a reeboot it was fine again and yesterday i switched my pc on and it was fine i can see nvidia sign in the (show hidden icons)tab on taskbar. and like this for four times during the day, but today i made over 12 restarts and it did not show the nvidia sign in the taskbar and eaven in device manager, it only showed intel hd 3000 i dont have a clue what is happening to my pc, and i cannot play games on intel hd 3000 it is too laggy for me please help

my rig

cpu: intel core i5-2450m 2.50GHz
ram: 8GB ( 6.67 GB usable (to the damn intel hd 3000!!!!!) )
gpu: intel hd 3000
nvidia 520mx 1GB
hdd: samsung 1TB
windows 7 home premium 64-bit sp1

system rating 5.9 (with intel hd 3000)

thanx i advice!!!
take care...

 

[Wicked Mystic]

Check BIOS settings again and try to install Nvidia drivers.

Also Nvidia chips on laptops are well known to break after some time, so that may also be reason.

 

[Karlos100]

hei
i found out the problem it was not in the biosor drivers.
i took the laptop apart and cleaned from dust and then thought that i might change the thermal paste and when i removed the heat sink, the gpu was overflooded with thermal paste not only the stone but the hole chip aafter i cleaned all the paste and put new one in, put it back together and booted. after that it works again...