There are a few ways to get your temps down.
My card is a MSI HD4850 512MB.First Option:
I wanted to lower the temps. The real problem with the temp is the CCC default profile is wrong(fan control). So you need to make your own profile for Overdrive. First you need to turn on Overdrive and then set it to default. Second, you will need to set it to manual and change the fan speed.
Go to this location and open with notepad.
C:\Documents and Settings\"your login name"\Local Settings\Application Data\ATI\ACE\"your profile name here".xml
Find this location within the file and change that is red(bold):
- <Feature name="FanSpeedAlgorithm_0">
<Property name="FanSpeedAlgorithm" value="Manual
- <Feature name="FanSpeedRPMTarget_0">
<Property name="Want" value="0" />
- <Feature name="FanSpeedPercentTarget_0">
<Property name="Want" value="65
" /> (WARNING, USE AT YOUR OWN RISK) Second Option:
I wanted to lower the clocked on 2D mode so you need to flash your card with a new BIOS. Some people are able to flash their card with the MSI BIOS, do this at your own risk.
Windows BIOS Flash for ATI Cards:http://www.techpowerup.com/downloads/1122/Winflash_184.108.40.206.html
BIOS Database: http://www.techpowerup.com/vgabios/(WARNING, USE AT YOUR OWN RISK) Third Option:
Edit the BIOS and change the temp and fan speed scaling.
BIOS Editor: http://www.techpowerup.com/downloads/1121/TechPowerUp_Radeon_Bios_Editor_v1.11.html
BIOS Database: http://www.techpowerup.com/vgabios/
0.20 Updated guide, moved around some stuff, and added 3rd option.
0.10 Updated the pics, added bold to 2 lines.