I've been trying to OC my Graphic Card; but am not sure how far to push it. I attach a .jpg showing my Performance Clocks, they are on default settings. At the moment, using nvtweak tool I have tried a max. setting of Core - 280 and Memory - 507; this gave me a nice smooth flight into La Guardia Airport. Not wishing to burn my card out :), I put the settings back to default.Reviews on the Web have pushed the Settings up to a "safe" level of Core - 310 and memory - 550. Can I ask anyone who also owns a similar Card what levels they would call "safe" or maximum?Any comments or suggestions would be most welcome.KenSomerset, England

One of the overclocking utilities (can't remember which) does an artifact test when you push up the clock speeds. If it detects those artifacts, which indicate you have gone too far, it pulls the clock speeds back down.Any overclocking stresses the card and causes increased heat, if you can get rid of the excess heat you can usually overclock more at the possible expense of shorter lifetime of the card.Given the Ti4200 is no longer 'cutting edge' and is probably quite cheap to replace I would go as high as possible and then back down one or two steps.Having said that if 280/307 give you smooth flight why push more?

Thanks Vulcan,The Ti4200 though getting a little long in the tooth :) can do a reasonable job. Though by todays standards, as you say 'no longer cutting edge'. The Card was provided with a program called Expert Tool, I used it to OC the card once or twice but gave up after the adjustments went back to default on shutdown. However, Nvidia have this program named 'nvtweak.reg' on their website which allows you to tweak the card; and provides a box to check if you want it to retain the tweaks on restart. In view of your reply I will push the numbers up a little more to see how it goes. nvtweak.reg also requires you to hit the Test button before the OC'ing takes effect, which is similar to the Utility you mentioned.Sorry for this 'longwinded' reply; our discussion may be of use to others though.Many thanks for your reply,KenSomerset, England