Video Card OC Heat

Well I just got my MSI R4850 in a couple of days ago (includes MSI's copper heatsink platform and fan) and have been noticing something strange. I have the fan speed set at 100% in order to keep heat down, but the weird thing is when I OC the card to 700/1100 CCC reads the card as actually being cooler than it is when it is at stock speeds, stock is at 625/993. OC it is running at 42C under idle and 49-54C under full load (Oblivion max settings with 2xAA and a lot of texture improvement packs, and Crysis max settings (high,DX9)). At stock speeds it is running 48-50C idle and 56-62C under full load.

Anyone have any explanations for this?

I don't know why... But my advised, don't set the fan speed more than 50% in "long term" because it will break the fan...Aldouz

On the contrary - a static fan speed is better for a fan than a constantly adjusting one. A fan running at 50% or 100% all the time is better for a fan than ramping up between 30%-70%.

[QUOTE="Aldouz"]I don't know why... But my advised, don't set the fan speed more than 50% in "long term" because it will break the fan...RayvinAzn

On the contrary - a static fan speed is better for a fan than a constantly adjusting one. A fan running at 50% or 100% all the time is better for a fan than ramping up between 30%-70%.

Really, I don't know that??? Can you give me some link or article... Because on Riva Tuner help/readme says that some fan can break if its set more than 50%...

No articles, just general electric knowledge. Let's say you have three lights, one on a rheostat, one on a switch that only delivers half the bulb's rated wattage, and one that delivers full wattage. You turn on the bulbs every time you enter and exit a room, but the one on the rheostat adjusts minutely given a set of parameters. Which bulb will burn out first? It's similar for fans, except that they have a motor.RayvinAzn

also depends on how the fan is made, doesnt apply to everything, and if you have general electric knowledge, you should understand what an anomaly is... also 62c is nothing to really worry about. if it starts bumping 70c then start to worry.