Catalyst voltage question

[Zíon]

The card switches from 2D to 3D clocks just fine but does not undervolt in 2D or overvolt in 3D... checked with DMM

I usually install drivers only as I dont really need CCC and the extra .Net overload

Is it necessary to install CCC in order to have voltage control or just the driver should be able to do it ?

Well, BIOS is OK :

$0a00000002 Core clock                : 750.000MHz
$0a00000003 Memory clock              : 900.000MHz
$0a00000004 Reference clock           : 100.000MHz
$0a00030000 PowerPlay state 0         : 750MHz/900MHz/1.26V/boot
$0a00030100   Performance level 1     : 750MHz/900MHz/1.26V
$0a00030200   Performance level 2     : 750MHz/900MHz/1.26V
$0a00030001 PowerPlay state 1         : 600MHz/900MHz/1.20V
$0a00030101   Performance level 1     : 600MHz/900MHz/1.20V
$0a00030201   Performance level 2     : 750MHz/900MHz/1.26V
$0a00030002 PowerPlay state 2         : 750MHz/900MHz/1.26V/UVD
$0a00030102   Performance level 1     : 750MHz/900MHz/1.26V
$0a00030202   Performance level 2     : 750MHz/900MHz/1.26V
$0a00030003 PowerPlay state 3         : 600MHz/900MHz/1.20V
$0a00030103   Performance level 1     : 600MHz/900MHz/1.20V
$0a00030203   Performance level 2     : 750MHz/900MHz/1.26V
$0a00000008 Memory type               : GDDR5

 

[kn00tcn]

uh what card, 4870?

is 2d ~1.0x & 3d the same? or 2d is ~1.2v along with 3d?

 

[Zíon]

Thanks for your input but it turns out it isn't really necessary to have CCC installed, voltage switching should work with catalyst drivers only installation.