Rumors about fan problem of New 3870

I heard from my friends that the new 3870s were not able to automatically change their fan speed, which resulted in terrible temperature during full load.

Do anybody here have this kind of problem?

No ..... not on mine . Stays cool under load . Sure you don't have it mixed up with the nvidia 8800 g92 ? They put a weak slow fan and lousey shroud on them and they're running hot.

confirming visiontek 3870. same problem. also can confirm by proxy that asus card has same issue.

ati not commenting on it. several people having problems with them refusing to cooperate. i am one of them.

auto fan speed for the 3870 is simply not functional at this time.

another thread about it:
http://forums.amd.com/game/message [...] adid=90359

I have the same issue 100%. The fan speed on my Diamond HD3870 is not working correctly. It doesn't ever seem to speed up causing high temps like 70-80 deg when gaming. I set the fan to 55% in Riva and the highest temp I saw yet was 62. BIG DIFFERENCE.

GET THIS FIXED ATI !!!!!!

It is SUPER COOL when I put the fan up to speed but its the damn controller on the card that is piss poor. It need a bios update or some kind of driversupdate

yea that's not what we're talking about.

we all can do that.

it's the AUTO adjusting of fan controller that we're having issues with.

additionally, we're talking about 3870's. not gt's.

what?!?! pwm doesn't work on these boards? i thought that was one of the main selling points of it. 7-phase pwm.....

is there any way to edit the temps in the auto setting? i dont really want my fan running at 80% when it boots up

guess what i have the same isue - i am half way through full crysis run and my gpu cookes at 85c idle is max around 65c

i just used the nvidia tool to manually set it to 70%

its still dropping its at 49c now down from 60-65cc


coud this be a vista issue

or an ati and nvida conspiracy?


i read how some peoples 8800gts 512 run cool

of coarse i have the msi 730mhz max oc version set to stock

can't be just a vista thing. i have this issue on xp pro.

It's true. The 3870 has fan probs. My Powercolor ATI 3870 512mb was suck at something like 25%. Very quiet but very hot, it would idle at 58-60c and easily reach 90c then reset the graphics driver (,crashing the game in the process) when playing CoD4 or Fallout 3. With temps like that and the frequent crashes, overclocking was out of the question. I installed RivaTuner and made launcher profiles for all my games, then replace my original shortcuts with the shortcuts from rivatuner. RivaTuner now automatically applies the appropriate core/memory clock and fan speeds when I start the game and returns them to default when i quit the game.

Most of my games ran fine at the default 777/1126 mhz, but Crysis, for example needs a little extra UMPH so I set clock speeds of 835/1240mhz and a fan speed of 65% duty cycle to the rivatuner launcher for Crysis. Now when I click on my Crysis shortcut my Clock/fan speeds goes from 390/1126mhz (clocked down for desktop) and 40% duty cycle, up to 835/1240mhz and 65%dc, and return to the original speeds when I exit Crysis.

Now my temps are much better. 47-50c idle (@ 390/1126mhz) and 70c under 100% load (@ 835/1240mhz), averaging about 60-68c when gaming (@ any clock speed). My fan's set at 50% for most games, and up to 60% I cannot even hear it over the case fans. Even up to 70% it is not that noticeable, nothing a little nudge of the volume knob won't fix. Now if I set the fan higher than 75% I'd have to break out the headphones.