I have a Leadtek (wrap around heatsink thing) Ti4200 with 128MB RAM (the slower stuff IIRC). Firstly, is it worth replacing the GPU cooler on it and adding ramsinks, or should the Leadtek heatsink be good enough? Secondly, is it worth replacing the Leadtek BIOS with a refrence nVidia one (what sites are good fir this?). Thirdly, what clocks should I be aiming for?
And lastly, is it worth trying to clock it?
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). Firstly, is it worth replacing the GPU cooler on it and adding ramsinks, or should the Leadtek heatsink be good enough? Secondly, is it worth replacing the Leadtek BIOS with a refrence nVidia one (what sites are good fir this?). Thirdly, what clocks should I be aiming for?
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Most 4200_128MB which use the slower clocks of 250/444 can often achieve around 280/500 and often higher, big perf gains. Stock coolers on all 4200 is more than enough, replacing it and using good compound is unlikely to yield more than 5mhz extra on the core. As for RAM sinks the 4200 never seemed limited by heat, little more than jewlery IMHO. Of course o/c'ing voids your warranty but it could fail from some other unrelated fault, if you mod the card (fan or HS) you guarantee they won't even look at your card. Flashing GF4TI BIOS is very risky and IMHO pointless. Save yourself some time, money and hassle and just try o/c'ing the card as is.
There's no sure o/c but VERY few 4200 struggled to hit 275/500 which is still 5% behind a 4400/4800SE, you'll have to take small steps up and test to see what's stable.

On stock cooling too, the reference heatsink.


The early 128MB 4200 used slightly slower RAM and RAM clocks. All modern 4200 (-8X) should use the slightly faster RAM and RAM clock and therefor o/c a little better. The 64MB cards though still very good offer slightly lower perf per clock speed so even before the extra RAM is used by a game a 4200_64MB @ 300/550 would be roughly the same speed as a 4200_128MB @ 300/500 so don't despair if you have a lower RAM clock on the 128MB version. When more than 64MB is needed (still not very common) the perf drop is pretty significant making a 4200_64MB @ 300/600 perf pretty close to a 4200_128MB @ 250/444.
