graphics card overheating

[Chutneybox]

I opened the PC to clean out the dust bunnies. took out the graphics card (didnt take the fan or heat sink off the card) , processor heat sink and cleaned them then put them back in. Also got the dust floating around the case.I put a hoover up to the back and sucked all the dust from the fans that was blocking the holes.

Now When i log on to play games, the temp skyrockets, it got up to 105 degrees before i logged out. Checked fans etc and all are spinning. It seems fine if i log in and look at a wall or just surf the net or youtube but soon as i log in and move around it rises fast. It has been working fine for over a year at least until i clceaned the pc

Its a BFG Nvidia GeForce GTS 250 OC

any ideas

 

[iFargle]

Try reinstalling the drivers. If that doesn't work, nVidia offers a program that will let you adjust the clock speeds and fan speeds of the card. I have to do that with my BFG card.

 

[C0RR0SIVE]

It is actually very possible you broke the seal the grease once had. Your best bet is to clean the stuff off and re-apply a high quality paste.

 

[Chutneybox]

Wow, spot on!! took the fan and heatsink off the card and replaced the paste. runs like a dream now. i dont know why it needed replacing as i never pulled the heatsink off before and i handled it gently but im not gonna complain..

Ty for the help guys this case is closed!