how to overclock leadtek gtx 275???

[nks]

hi,
i have recently upgraded my pc to i73770 k , msi mpower z77 mobo, 16gb gskill 1666mhz ram
and now GPU is the weakest part of the rig. GPU - leadtek GTX 275 it has served me for 4.5 years now.
i mostly play call of duty and i was shocked to see only 40-43 fps at full settings on modern warfare 3.
whereas i was getting 60+ fps on modern warfare 2 using AMD phenom 965 ans msi 790fx gd70 mobo with 4gb RAM on win7

so i have decided to oc it. (don't have budget for upgarde as of now. will be upgrading in next 8-9 months)
the card came with a winfox utility but i have lost the cd and now i am not able to find that utility on internet.
so please guide me how to do it.
i have never oc'ed gpu
so please let me know frm the basics.
and is there any universal utility or i am stuck if i don't find utility that came with my leadtek card.

eagerly waiting

 

[GodisanAtheist]

Here is a little bit of advice you never asked for: I wouldn't overclock anything that I couldn't afford to replace tomorrow if it crapped out on me. Imagine overclocking your 275 and having it die tomorrow, then going for 8-9 months on integrated graphics.

Now for the advice you did ask for:
http://www.guru3d.com/articles_pages/geforce_gtx_275_overclock_guide,1.html

Guide will work for just about any brand of 275. Not sure if popular modern utilities like MSI Afterburner are compatible with older cards.

 

[nks]

Here is a little bit of advice you never asked for: I wouldn't overclock anything that I couldn't afford to replace tomorrow if it crapped out on me. Imagine overclocking your 275 and having it die tomorrow, then going for 8-9 months on integrated graphics.

Now for the advice you did ask for:
http://www.guru3d.com/articles_pages/geforce_gtx_275_overclock_guide,1.html

Guide will work for just about any brand of 275. Not sure if popular modern utilities like MSI Afterburner are compatible with older cards.

i have read it.
but rivatuner is not recognizing my drivers.

 

[blackened23]

Try MSI afterburner. I believe it will work on the 200 series.