www.abithelp.com

Greybear wrote:WOW. The BIOS really needs to be tweaked from the factory to compensate for this....

The worst thing is that these cards should not be getting this hot in 2D mode. Ive blown 3D chips that still allowed for 2D operation.

If you are referring to Folding, it is a parallel computing program that utilizes the card's full potential, like running a graphics intensive game at full high settings. For Nvidia cards, Folding won't even run on anything less that a 9xxx series or above (maybe an 85xx series but not very well). So I expect these cards to get hot, and they do. So it must be in 3D mode. Yay for CUDA! Chris.

dmdilks wrote:Thanks for the replys, but with PSU's I have always said they are over rated. I run two 4850's in cross fire with a 500w PSU and at Idle they running at 35c. when playing games they might reach 50c or 55c. I have no problems with the cards after the drivers are installed. It is before that when it is happenning. You can go into ati drivers file and set them to manual and set the speed to what ever you want. Why would ati do something like that when is better run the fan faster at 2D to keep it cool.

To keep the noise down basically. They probably assumed they would get more flack from general users complaining about the noise than would notice the heat. My HD 4870's before tweaking would run around 76-78C at idle with the default fan speed of 23%. I adjusted the fan-speed by editing the XML file the CCC uses and bumped it to 38% which was still fairly quiet and temps hovered around 46-48C for me. I picked up my cards when they were released and at the time they were not recognized by Rivatuner and the CCC did not have built in Fan-Control. Luckily the XML hack appeared not long after the cards were released.

As far as Power supplies I have always said, it's not the wattage, it's the +12V rail and quality. So we're basically in agreement.

Edit:

Holy Crap , it's been so long I forgot how hot these things were before bumping the fan speed up. Just changed 56C at idle in the above post to 76C-78C. I found an old post of mine on a different forum for reference. All be damned, that post had 23,000 views.

http://www.rage3d.com/board/showthread. ... an-control

I got that computer back and I don't know what he was doing, because I'm not really having any problems. Yes the ati 2600 do run a little hotter 48c. The PSU is antec 500w smart power the 12 rails are 17a & 19a. I put in the two 3850's set crossfire and they running about 45c & 40c at Idle. In the profile.xml is showing Auto and at 50%. I have not change anything.

dmdilks wrote:I got that computer back and I don't know what he was doing, because I'm not really having any problems. Yes the ati 2600 do run a little hotter 48c. The PSU is antec 500w smart power the 12 rails are 17a & 19a. I put in the two 3850's set crossfire and they running about 45c & 40c at Idle. In the profile.xml is showing Auto and at 50%. I have not change anything.

Yeah, those HD 2600's don't use much power at all and that's one of their best features. Almost all of my comments were specifically about the HD 4800 Series.

Glad you got it working.

Yes got working but it still not right what ati did to cut down on the noise. Thanks for the help guys. I had everything under control. I just wanted to see if any body had notice the same problem. That is why I started the topic and if we do more of these little topics, maybe we can get some more members.